2.6.19-rc6 : Spontaneous reboots, stack overflows - seems to implicate xfs, scsi, networking, SMP

From: Jesper Juhl
Date: Tue Nov 21 2006 - 04:28:26 EST

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Hi,

I have a server that has long suffered from spontaneous reboots and random
crashes.
The problems seem to be partly SMP related since the machine is rock solid
with a UP version of 2.6.11.11, but the same kernel compiled for SMP has
issues.

The server initially had 1 Intel Xeon CPU with HT and was very recently
upgraded with an additional one (in the blind hope that the issues would be
fixed). The kernel *seems* to die faster with 2 CPU's and a SMP kernel than
it previously did with just one (HT) CPU and a SMP kernel.

I've been trying newer kernels, such as 2.6.17.x, 2.6.18.x, 2.6.19-rc*
(all SMP), hoping that the problem(s) would be fixed, but that does not seem
to be the case.

Recently I've been using netconsole and have lots of debug options enabled
in the hope that I could capture some relevant info. Unfortunately nothing
ever really made it to the remote log - except one little incomplete bit I
got the other day (with 2.6.19-rc6) :

do_IRQ: stack overflow: 492

That is all that made it to the log, but it does indicate that the problem
might be stack-usage related.
Since the kernel was compiled with 4K stacks, perhaps if it was changed to
use 8K stacks it would stay up long enough for a complete dump to reach the
logs. But, if 8K stacks really did help, it would be nice if the dumps still
happened at the same point where they would have with 4K stacks.
So, I changed STACK_WARN in include/asm/thread_info.h from (THREAD_SIZE/8)
to(4608). This way I should get stack traces at the point where the kernel
would be in trouble with a 4K stack but since it's actually using a 8K stack
it should survive and let me capture the trace.

I got more than I could ever have hoped for. I still got spontaneous
reboots, but this time my remote log server captured tons of stack dumps.
I've got far too many to send here (more than 2G) and most of them are
identical anyway, so I'll just submit a few representative samples
initially.

Most of the traces include XFS functions and some also involve scsi and/or
networking. This is the reason I'm submitting this to the XFS & netdev lists
in addition to LKML.

All of these traces were collected with 2.6.19-rc6 with the modification
mentioned above.

Hardware details and software environment info is at the end of the email.

This is the most often captured trace :

do_IRQ: stack overflow: 4416
[<c01039a7>] dump_trace+0x1e7/0x1fd
[<c0103a67>] show_trace_log_lvl+0x1c/0x33
[<c0103a90>] show_trace+0x12/0x16
[<c0103b8f>] dump_stack+0x19/0x1d
[<c0105133>] do_IRQ+0xaf/0xd6
[<c01034fe>] common_interrupt+0x1a/0x20
[<c011ee20>] __do_softirq+0x59/0xd0
[<c011eece>] do_softirq+0x37/0x39
[<c011ef09>] irq_exit+0x39/0x3b
[<c01050f8>] do_IRQ+0x74/0xd6
[<c01034fe>] common_interrupt+0x1a/0x20
[<c02ee313>] make_request+0x320/0x426
[<c0236eec>] generic_make_request+0x14f/0x1b7
[<c02fbac7>] __map_bio+0x4c/0x93
[<c02fbcfd>] __clone_and_map+0xdb/0x30a
[<c02fbfd0>] __split_bio+0xa4/0xc7
[<c02fc093>] dm_request+0xa0/0xbf
[<c0236eec>] generic_make_request+0x14f/0x1b7
[<c0236fbc>] submit_bio+0x68/0x109
[<c02257bc>] _xfs_buf_ioapply+0x1cf/0x28d
[<c02258a3>] xfs_buf_iorequest+0x29/0x6e
[<c020992a>] xlog_bdstrat_cb+0x19/0x41
[<c020a212>] xlog_sync+0x24e/0x457
[<c020b7ce>] xlog_state_release_iclog+0x75/0xd0
[<c020bc8d>] xlog_state_sync+0x175/0x269
[<c0208ef6>] _xfs_log_force+0x7f/0x88
[<c01d1786>] xfs_alloc_search_busy+0xdf/0xe1
[<c01d0d1c>] xfs_alloc_get_freelist+0xe7/0xf5
[<c01d2d9b>] xfs_alloc_newroot+0x21/0x34f
[<c01d25c4>] xfs_alloc_insrec+0x3b0/0x3ce
[<c01d3cdf>] xfs_alloc_insert+0x5a/0xc3
[<c01d071a>] xfs_free_ag_extent+0x57f/0x5f2
[<c01d09f9>] xfs_alloc_fix_freelist+0x220/0x45c
[<c01d1285>] xfs_alloc_vextent+0x24e/0x47a
[<c01dfcb9>] xfs_bmap_btalloc+0x31f/0x966
[<c01e031e>] xfs_bmap_alloc+0x1e/0x29
[<c01e3b92>] xfs_bmapi+0x1134/0x1545
[<c0206a20>] xfs_iomap_write_allocate+0x2bb/0x509
[<c020576b>] xfs_iomap+0x357/0x459
[<c022b02f>] xfs_bmap+0x2e/0x35
[<c0222bbb>] xfs_map_blocks+0x3c/0x70
[<c0223b24>] xfs_page_state_convert+0x3cc/0x629
[<c0223ddd>] xfs_vm_writepage+0x5c/0xd3
[<c01417a4>] generic_writepages+0x1b9/0x2d5
[<c0223e78>] xfs_vm_writepages+0x24/0x4a
[<c01418ea>] do_writepages+0x2a/0x46
[<c0172c03>] __sync_single_inode+0x5c/0x1de
[<c0172e0a>] __writeback_single_inode+0x85/0x18f
[<c01730c7>] sync_sb_inodes+0x1b3/0x2b2
[<c0173278>] writeback_inodes+0xb2/0xbe
[<c0141395>] background_writeout+0x66/0x9a
[<c0141f37>] __pdflush+0xcf/0x184
[<c014201e>] pdflush+0x32/0x36
[<c012c918>] kthread+0xa9/0xae
[<c010373b>] kernel_thread_helper+0x7/0x10

another very common one is this one :

do_IRQ: stack overflow: 4532
[<c01039a7>] dump_trace+0x1e7/0x1fd
[<c0103a67>] show_trace_log_lvl+0x1c/0x33
[<c0103a90>] show_trace+0x12/0x16
[<c0103b8f>] dump_stack+0x19/0x1d
[<c0105133>] do_IRQ+0xaf/0xd6
[<c01034fe>] common_interrupt+0x1a/0x20
[<c02255a7>] xfs_buf_bio_end_io+0xd9/0x11f
[<c017a546>] bio_endio+0x55/0x7a
[<c02fb914>] dec_pending+0x3d/0x6b
[<c02fb9c7>] clone_endio+0x85/0xb1
[<c017a546>] bio_endio+0x55/0x7a
[<c0237435>] __end_that_request_first+0x1df/0x271
[<c02374dc>] end_that_request_chunk+0x8/0xa
[<c02adab9>] scsi_end_request+0x25/0xcb
[<c02adca4>] scsi_io_completion+0x82/0x301
[<c02b6b6d>] sd_rw_intr+0x76/0x20f
[<c02a9bf5>] scsi_finish_command+0x43/0x5e
[<c02ae3df>] scsi_softirq_done+0x70/0xd5
[<c0237540>] blk_done_softirq+0x62/0x6b
[<c011ee82>] __do_softirq+0xbb/0xd0
[<c011eece>] do_softirq+0x37/0x39
[<c011ef09>] irq_exit+0x39/0x3b
[<c01050f8>] do_IRQ+0x74/0xd6
[<c01034fe>] common_interrupt+0x1a/0x20
[<c013edf8>] mempool_alloc+0x21/0xce
[<c01796dd>] bio_alloc_bioset+0x79/0x13f
[<c02fbbdb>] clone_bio+0x36/0x7d
[<c02fbcf0>] __clone_and_map+0xce/0x30a
[<c02fbfd0>] __split_bio+0xa4/0xc7
[<c02fc093>] dm_request+0xa0/0xbf
[<c0236eec>] generic_make_request+0x14f/0x1b7
[<c0236fbc>] submit_bio+0x68/0x109
[<c02257bc>] _xfs_buf_ioapply+0x1cf/0x28d
[<c02258a3>] xfs_buf_iorequest+0x29/0x6e
[<c02254a4>] xfs_buf_iostart+0x6d/0x97
[<c0224e32>] xfs_buf_read_flags+0x8a/0x8c
[<c021768e>] xfs_trans_read_buf+0x153/0x2fc
[<c01eb559>] xfs_btree_read_bufs+0x6e/0x84
[<c01d27d9>] xfs_alloc_lookup+0x10a/0x39e
[<c01d3d76>] xfs_alloc_lookup_ge+0x17/0x1a
[<c01cf314>] xfs_alloc_ag_vextent_near+0x5f/0x957
[<c01cf107>] xfs_alloc_ag_vextent+0x104/0x106
[<c01d13a9>] xfs_alloc_vextent+0x372/0x47a
[<c01dfcb9>] xfs_bmap_btalloc+0x31f/0x966
[<c01e031e>] xfs_bmap_alloc+0x1e/0x29
[<c01e3b92>] xfs_bmapi+0x1134/0x1545
[<c0206a20>] xfs_iomap_write_allocate+0x2bb/0x509
[<c020576b>] xfs_iomap+0x357/0x459
[<c022b02f>] xfs_bmap+0x2e/0x35
[<c0222bbb>] xfs_map_blocks+0x3c/0x70
[<c0223b24>] xfs_page_state_convert+0x3cc/0x629
[<c0223ddd>] xfs_vm_writepage+0x5c/0xd3
[<c01417a4>] generic_writepages+0x1b9/0x2d5
[<c0223e78>] xfs_vm_writepages+0x24/0x4a
[<c01418ea>] do_writepages+0x2a/0x46
[<c0172c03>] __sync_single_inode+0x5c/0x1de
[<c0172e0a>] __writeback_single_inode+0x85/0x18f
[<c01730c7>] sync_sb_inodes+0x1b3/0x2b2
[<c0173278>] writeback_inodes+0xb2/0xbe
[<c0141478>] wb_kupdate+0x80/0xe9
[<c0141f37>] __pdflush+0xcf/0x184
[<c014201e>] pdflush+0x32/0x36
[<c012c918>] kthread+0xa9/0xae
[<c010373b>] kernel_thread_helper+0x7/0x10

This one seems to involve scsi :

do_IRQ: stack overflow: 4568
[<c01039a7>] dump_trace+0x1e7/0x1fd
[<c0103a67>] show_trace_log_lvl+0x1c/0x33
[<c0103a90>] show_trace+0x12/0x16
[<c0103b8f>] dump_stack+0x19/0x1d
[<c0105133>] do_IRQ+0xaf/0xd6
[<c01034fe>] common_interrupt+0x1a/0x20
[<c03872bf>] _spin_unlock_irq+0xa/0xb
[<c0235974>] blk_run_queue+0x42/0x77
[<c02ad99e>] scsi_run_queue+0xc9/0xf1
[<c02ada4f>] scsi_next_command+0x33/0x49
[<c02adb44>] scsi_end_request+0xb0/0xcb
[<c02adca4>] scsi_io_completion+0x82/0x301
[<c02b6b6d>] sd_rw_intr+0x76/0x20f
[<c02a9bf5>] scsi_finish_command+0x43/0x5e
[<c02ae3df>] scsi_softirq_done+0x70/0xd5
[<c0237540>] blk_done_softirq+0x62/0x6b
[<c011ee82>] __do_softirq+0xbb/0xd0
[<c011eece>] do_softirq+0x37/0x39
[<c011ef09>] irq_exit+0x39/0x3b
[<c01050f8>] do_IRQ+0x74/0xd6
[<c01034fe>] common_interrupt+0x1a/0x20
[<c03872bf>] _spin_unlock_irq+0xa/0xb
[<c0236eec>] generic_make_request+0x14f/0x1b7
[<c02fbac7>] __map_bio+0x4c/0x93
[<c02fbcfd>] __clone_and_map+0xdb/0x30a
[<c02fbfd0>] __split_bio+0xa4/0xc7
[<c02fc093>] dm_request+0xa0/0xbf
[<c0236eec>] generic_make_request+0x14f/0x1b7
[<c0236fbc>] submit_bio+0x68/0x109
[<c02257bc>] _xfs_buf_ioapply+0x1cf/0x28d
[<c02258a3>] xfs_buf_iorequest+0x29/0x6e
[<c02254a4>] xfs_buf_iostart+0x6d/0x97
[<c0224e32>] xfs_buf_read_flags+0x8a/0x8c
[<c021768e>] xfs_trans_read_buf+0x153/0x2fc
[<c01eb559>] xfs_btree_read_bufs+0x6e/0x84
[<c01d27d9>] xfs_alloc_lookup+0x10a/0x39e
[<c01d3d5c>] xfs_alloc_lookup_eq+0x14/0x17
[<c01ceef8>] xfs_alloc_fixup_trees+0x252/0x2a9
[<c01cff24>] xfs_alloc_ag_vextent_size+0x318/0x405
[<c01cf0e5>] xfs_alloc_ag_vextent+0xe2/0x106
[<c01d13a9>] xfs_alloc_vextent+0x372/0x47a
[<c01dfcb9>] xfs_bmap_btalloc+0x31f/0x966
[<c01e031e>] xfs_bmap_alloc+0x1e/0x29
[<c01e3b92>] xfs_bmapi+0x1134/0x1545
[<c0206a20>] xfs_iomap_write_allocate+0x2bb/0x509
[<c020576b>] xfs_iomap+0x357/0x459
[<c022b02f>] xfs_bmap+0x2e/0x35
[<c0222bbb>] xfs_map_blocks+0x3c/0x70
[<c0223b24>] xfs_page_state_convert+0x3cc/0x629
[<c0223ddd>] xfs_vm_writepage+0x5c/0xd3
[<c01417a4>] generic_writepages+0x1b9/0x2d5
[<c0223e78>] xfs_vm_writepages+0x24/0x4a
[<c01418ea>] do_writepages+0x2a/0x46
[<c0172c03>] __sync_single_inode+0x5c/0x1de
[<c0172e0a>] __writeback_single_inode+0x85/0x18f
[<c01730c7>] sync_sb_inodes+0x1b3/0x2b2
[<c0173278>] writeback_inodes+0xb2/0xbe
[<c0141395>] background_writeout+0x66/0x9a
[<c0141f37>] __pdflush+0xcf/0x184
[<c014201e>] pdflush+0x32/0x36
[<c012c918>] kthread+0xa9/0xae
[<c010373b>] kernel_thread_helper+0x7/0x10

And then there are some where stack space is really low, which would
certainly have killed us if running with 4K stacks :

First this :

do_IRQ: stack overflow: 3376
[<c01039a7>] dump_trace+0x1e7/0x1fd
[<c0103a67>] show_trace_log_lvl+0x1c/0x33
[<c0103a90>] show_trace+0x12/0x16
[<c0103b8f>] dump_stack+0x19/0x1d
[<c0105133>] do_IRQ+0xaf/0xd6
[<c01034fe>] common_interrupt+0x1a/0x20
[<c03872b2>] _spin_unlock_irqrestore+0xd/0x10
[<c029ab47>] e1000_xmit_frame+0x269/0x3b1
[<c0315f1f>] dev_hard_start_xmit+0x5a/0xd3
[<c03224da>] __qdisc_run+0x95/0x1d7
[<c03161b8>] dev_queue_xmit+0x220/0x285
[<c03841c1>] vlan_dev_hwaccel_hard_start_xmit+0x8a/0x92
[<c0315f1f>] dev_hard_start_xmit+0x5a/0xd3
[<c03160f7>] dev_queue_xmit+0x15f/0x285
[<c031b63e>] neigh_connected_output+0x93/0xba
[<c0330869>] ip_output+0x170/0x250
[<c0330d21>] ip_queue_xmit+0x3d8/0x4e1
[<c03415da>] tcp_transmit_skb+0x29e/0x45d
[<c0344511>] tcp_send_ack+0xb3/0xf4
[<c033e343>] tcp_send_dupack+0x28/0x7f
[<c033fa7f>] tcp_rcv_established+0x141/0x6c8
[<c03478c9>] tcp_v4_do_rcv+0xcb/0xcd
[<c0347f3e>] tcp_v4_rcv+0x673/0x7e3
[<c032d351>] ip_local_deliver+0xf8/0x22d
[<c032d6ca>] ip_rcv+0x244/0x4e4
[<c031667f>] netif_receive_skb+0x1f9/0x26a
[<c029bbea>] e1000_clean_rx_irq+0x17f/0x4b9
[<c029b6f9>] e1000_clean+0x66/0xfb
[<c0316890>] net_rx_action+0x96/0x174
[<c011ee82>] __do_softirq+0xbb/0xd0
[<c011eece>] do_softirq+0x37/0x39
[<c011ef09>] irq_exit+0x39/0x3b
[<c01050f8>] do_IRQ+0x74/0xd6
[<c01034fe>] common_interrupt+0x1a/0x20
[<c02fba08>] max_io_len+0x15/0x88
[<c02fbc66>] __clone_and_map+0x44/0x30a
[<c02fbfd0>] __split_bio+0xa4/0xc7
[<c02fc093>] dm_request+0xa0/0xbf
[<c0236eec>] generic_make_request+0x14f/0x1b7
[<c0236fbc>] submit_bio+0x68/0x109
[<c02257bc>] _xfs_buf_ioapply+0x1cf/0x28d
[<c02258a3>] xfs_buf_iorequest+0x29/0x6e
[<c02254a4>] xfs_buf_iostart+0x6d/0x97
[<c0224e32>] xfs_buf_read_flags+0x8a/0x8c
[<c021768e>] xfs_trans_read_buf+0x153/0x2fc
[<c01eb559>] xfs_btree_read_bufs+0x6e/0x84
[<c01d27d9>] xfs_alloc_lookup+0x10a/0x39e
[<c01d3d76>] xfs_alloc_lookup_ge+0x17/0x1a
[<c01cf314>] xfs_alloc_ag_vextent_near+0x5f/0x957
[<c01cf107>] xfs_alloc_ag_vextent+0x104/0x106
[<c01d13a9>] xfs_alloc_vextent+0x372/0x47a
[<c01dfcb9>] xfs_bmap_btalloc+0x31f/0x966
[<c01e031e>] xfs_bmap_alloc+0x1e/0x29
[<c01e3b92>] xfs_bmapi+0x1134/0x1545
[<c0206a20>] xfs_iomap_write_allocate+0x2bb/0x509
[<c020576b>] xfs_iomap+0x357/0x459
[<c022b02f>] xfs_bmap+0x2e/0x35
[<c0222bbb>] xfs_map_blocks+0x3c/0x70
[<c0223b24>] xfs_page_state_convert+0x3cc/0x629
[<c0223ddd>] xfs_vm_writepage+0x5c/0xd3
[<c01417a4>] generic_writepages+0x1b9/0x2d5
[<c0223e78>] xfs_vm_writepages+0x24/0x4a
[<c01418ea>] do_writepages+0x2a/0x46
[<c0172c03>] __sync_single_inode+0x5c/0x1de
[<c0172e0a>] __writeback_single_inode+0x85/0x18f
[<c01730c7>] sync_sb_inodes+0x1b3/0x2b2
[<c0173278>] writeback_inodes+0xb2/0xbe
[<c014117f>] balance_dirty_pages+0xa6/0x15c
[<c01412ca>] balance_dirty_pages_ratelimited_nr+0x59/0x5b
[<c013dc7f>] generic_file_buffered_write+0x2ef/0x61f
[<c022ae09>] xfs_write+0x96f/0xb1c
[<c0226774>] xfs_file_aio_write+0x78/0x8a
[<c01586d9>] do_sync_write+0xc1/0x100
[<c01587a9>] vfs_write+0x91/0x137
[<c01588fb>] sys_write+0x41/0x6b
[<c0102b93>] syscall_call+0x7/0xb
[<b7f6b95e>] 0xb7f6b95e

and this :

e1000: eth0: e1000_clean_tx_irq: Detected Tx Unit Hang
Tx Queue <0>
TDH <d49>
TDT <d49>
next_to_use <d49>
next_to_clean <d8e>
buffer_info[next_to_clean]
time_stamp <aaa1fc>
next_to_watch <d8e>
jiffies <aaae6f>
next_to_watch.status <1>
do_IRQ: stack overflow: 3836
[<c01039a7>] dump_trace+0x1e7/0x1fd
[<c0103a67>] show_trace_log_lvl+0x1c/0x33
[<c0103a90>] show_trace+0x12/0x16
[<c0103b8f>] dump_stack+0x19/0x1d
[<c0105133>] do_IRQ+0xaf/0xd6
[<c01034fe>] common_interrupt+0x1a/0x20
[<c02443d0>] csum_partial+0xb8/0x120
DWARF2 unwinder stuck at csum_partial+0xb8/0x120
Leftover inexact backtrace:
[<c0313833>] __skb_checksum_complete+0x20/0x67
[<c035c397>] nf_ip_checksum+0xe0/0x125
[<c035fb91>] udp_error+0x105/0x184
[<c035da4c>] ip_conntrack_in+0x7d/0x294
[<c0326add>] nf_iterate+0x62/0x7c
[<c0326b4f>] nf_hook_slow+0x58/0xbf
[<c032d892>] ip_rcv+0x40c/0x4e4
[<c031667f>] netif_receive_skb+0x1f9/0x26a
[<c029bbea>] e1000_clean_rx_irq+0x17f/0x4b9
[<c029b6f9>] e1000_clean+0x66/0xfb
[<c0316890>] net_rx_action+0x96/0x174
[<c011ee82>] __do_softirq+0xbb/0xd0
[<c011eece>] do_softirq+0x37/0x39
[<c011ef09>] irq_exit+0x39/0x3b
[<c01050f8>] do_IRQ+0x74/0xd6
[<c01034fe>] common_interrupt+0x1a/0x20
[<c02fbc66>] __clone_and_map+0x44/0x30a
[<c02fbfd0>] __split_bio+0xa4/0xc7
[<c02fc093>] dm_request+0xa0/0xbf
[<c0236eec>] generic_make_request+0x14f/0x1b7
[<c0236fbc>] submit_bio+0x68/0x109
[<c02257bc>] _xfs_buf_ioapply+0x1cf/0x28d
[<c02258a3>] xfs_buf_iorequest+0x29/0x6e
[<c02254a4>] xfs_buf_iostart+0x6d/0x97
[<c0224e32>] xfs_buf_read_flags+0x8a/0x8c
[<c021768e>] xfs_trans_read_buf+0x153/0x2fc
[<c01eb559>] xfs_btree_read_bufs+0x6e/0x84
[<c01d27d9>] xfs_alloc_lookup+0x10a/0x39e
[<c01d3d76>] xfs_alloc_lookup_ge+0x17/0x1a
[<c01cf314>] xfs_alloc_ag_vextent_near+0x5f/0x957
[<c01cf107>] xfs_alloc_ag_vextent+0x104/0x106
[<c01d13a9>] xfs_alloc_vextent+0x372/0x47a
[<c01dfcb9>] xfs_bmap_btalloc+0x31f/0x966
[<c01e031e>] xfs_bmap_alloc+0x1e/0x29
[<c01e3b92>] xfs_bmapi+0x1134/0x1545
[<c0206a20>] xfs_iomap_write_allocate+0x2bb/0x509
[<c020576b>] xfs_iomap+0x357/0x459
[<c022b02f>] xfs_bmap+0x2e/0x35
[<c0222bbb>] xfs_map_blocks+0x3c/0x70
[<c0223b24>] xfs_page_state_convert+0x3cc/0x629
[<c0223ddd>] xfs_vm_writepage+0x5c/0xd3
[<c01417a4>] generic_writepages+0x1b9/0x2d5
[<c0223e78>] xfs_vm_writepages+0x24/0x4a
[<c01418ea>] do_writepages+0x2a/0x46
[<c0172c03>] __sync_single_inode+0x5c/0x1de
[<c0172e0a>] __writeback_single_inode+0x85/0x18f
[<c01730c7>] sync_sb_inodes+0x1b3/0x2b2
[<c0173278>] writeback_inodes+0xb2/0xbe
[<c014117f>] balance_dirty_pages+0xa6/0x15c
[<c01412ca>] balance_dirty_pages_ratelimited_nr+0x59/0x5b
[<c013dc7f>] generic_file_buffered_write+0x2ef/0x61f
[<c022ae09>] xfs_write+0x96f/0xb1c
[<c0226774>] xfs_file_aio_write+0x78/0x8a
[<c01586d9>] do_sync_write+0xc1/0x100
[<c01587a9>] vfs_write+0x91/0x137
[<c01588fb>] sys_write+0x41/0x6b
[<c0102b93>] syscall_call+0x7/0xb

and finally this one :

do_IRQ: stack overflow: 3916
[<c01039a7>] dump_trace+0x1e7/0x1fd
[<c0103a67>] show_trace_log_lvl+0x1c/0x33
[<c0103a90>] show_trace+0x12/0x16
[<c0103b8f>] dump_stack+0x19/0x1d
[<c0105133>] do_IRQ+0xaf/0xd6
[<c01034fe>] common_interrupt+0x1a/0x20
[<c0342148>] tcp_init_tso_segs+0x17/0x4c
[<c0342ac2>] tcp_write_xmit+0x5d/0x266
[<c0342cf4>] __tcp_push_pending_frames+0x29/0x81
[<c033fb46>] tcp_rcv_established+0x208/0x6c8
[<c03478c9>] tcp_v4_do_rcv+0xcb/0xcd
[<c0347f3e>] tcp_v4_rcv+0x673/0x7e3
[<c032d351>] ip_local_deliver+0xf8/0x22d
[<c032d6ca>] ip_rcv+0x244/0x4e4
[<c031667f>] netif_receive_skb+0x1f9/0x26a
[<c029bbea>] e1000_clean_rx_irq+0x17f/0x4b9
[<c029b6f9>] e1000_clean+0x66/0xfb
[<c0316890>] net_rx_action+0x96/0x174
[<c011ee82>] __do_softirq+0xbb/0xd0
[<c011eece>] do_softirq+0x37/0x39
[<c011ef09>] irq_exit+0x39/0x3b
[<c01050f8>] do_IRQ+0x74/0xd6
[<c01034fe>] common_interrupt+0x1a/0x20
[<c02fba08>] max_io_len+0x15/0x88
[<c02fbc66>] __clone_and_map+0x44/0x30a
[<c02fbfd0>] __split_bio+0xa4/0xc7
[<c02fc093>] dm_request+0xa0/0xbf
[<c0236eec>] generic_make_request+0x14f/0x1b7
[<c0236fbc>] submit_bio+0x68/0x109
[<c02257bc>] _xfs_buf_ioapply+0x1cf/0x28d
[<c02258a3>] xfs_buf_iorequest+0x29/0x6e
[<c02254a4>] xfs_buf_iostart+0x6d/0x97
[<c0224e32>] xfs_buf_read_flags+0x8a/0x8c
[<c021768e>] xfs_trans_read_buf+0x153/0x2fc
[<c01eb559>] xfs_btree_read_bufs+0x6e/0x84
[<c01d27d9>] xfs_alloc_lookup+0x10a/0x39e
[<c01d3d76>] xfs_alloc_lookup_ge+0x17/0x1a
[<c01cf314>] xfs_alloc_ag_vextent_near+0x5f/0x957
[<c01cf107>] xfs_alloc_ag_vextent+0x104/0x106
[<c01d13a9>] xfs_alloc_vextent+0x372/0x47a
[<c01dfcb9>] xfs_bmap_btalloc+0x31f/0x966
[<c01e031e>] xfs_bmap_alloc+0x1e/0x29
[<c01e3b92>] xfs_bmapi+0x1134/0x1545
[<c0206a20>] xfs_iomap_write_allocate+0x2bb/0x509
[<c020576b>] xfs_iomap+0x357/0x459
[<c022b02f>] xfs_bmap+0x2e/0x35
[<c0222bbb>] xfs_map_blocks+0x3c/0x70
[<c0223b24>] xfs_page_state_convert+0x3cc/0x629
[<c0223ddd>] xfs_vm_writepage+0x5c/0xd3
[<c01417a4>] generic_writepages+0x1b9/0x2d5
[<c0223e78>] xfs_vm_writepages+0x24/0x4a
[<c01418ea>] do_writepages+0x2a/0x46
[<c0172c03>] __sync_single_inode+0x5c/0x1de
[<c0172e0a>] __writeback_single_inode+0x85/0x18f
[<c01730c7>] sync_sb_inodes+0x1b3/0x2b2
[<c0173278>] writeback_inodes+0xb2/0xbe
[<c014117f>] balance_dirty_pages+0xa6/0x15c
[<c01412ca>] balance_dirty_pages_ratelimited_nr+0x59/0x5b
[<c013dc7f>] generic_file_buffered_write+0x2ef/0x61f
[<c022ae09>] xfs_write+0x96f/0xb1c
[<c0226774>] xfs_file_aio_write+0x78/0x8a
[<c01586d9>] do_sync_write+0xc1/0x100
[<c01587a9>] vfs_write+0x91/0x137
[<c01588fb>] sys_write+0x41/0x6b
[<c0102b93>] syscall_call+0x7/0xb
[<b7f6b95e>] 0xb7f6b95e

And there are lots of other ones as well that differ slightly from the ones
above.

Some hardware/software details :

# scripts/ver_linux
If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.

Linux server.mydomain.net 2.6.19-rc6 #1 SMP Mon Nov 20 14:33:26 CET 2006 i686
GNU/Linux

Gnu C 3.3.5
Gnu make 3.80
binutils 2.15
util-linux 2.12p
mount 2.12p
module-init-tools 3.2-pre1
e2fsprogs 1.37
xfsprogs 2.6.20
nfs-utils 1.0.6
Linux C Library 2.3.2
Dynamic linker (ldd) 2.3.2
Procps 3.2.1
Net-tools 1.60
Console-tools 0.2.3
Sh-utils 5.2.1
udev 056
Modules Loaded sky2 piix ide_core eeprom

# lspci -vvx
0000:00:00.0 Host bridge: Intel Corp. Server Memory Controller Hub (rev 0c)
Subsystem: Intel Corp.: Unknown device 3439
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+
Stepping- SERR+ FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Capabilities: [40] #09 [4105]
00: 86 80 90 35 46 01 90 00 0c 00 00 06 00 00 80 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 86 80 39 34
30: 00 00 00 00 40 00 00 00 00 00 00 00 00 00 00 00

0000:00:00.1 ff00: Intel Corp. Memory Controller Hub Error Reporting Register
(rev 0c)
Subsystem: Intel Corp.: Unknown device 3439
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
00: 86 80 91 35 00 01 00 00 0c 00 00 ff 00 00 00 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 86 80 39 34
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

0000:00:01.0 System peripheral: Intel Corp. Memory Controller Hub DMA
Controller (rev 0c)
Subsystem: Intel Corp.: Unknown device 3439
Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Interrupt: pin A routed to IRQ 10
Region 0: Memory at fcbff000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [b0] Message Signalled Interrupts: 64bit- Queue=0/1
Enable-
Address: fee00000 Data: 0000
00: 86 80 94 35 02 01 10 00 0c 00 80 08 00 00 00 00
10: 00 f0 bf fc 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 86 80 39 34
30: 00 00 00 00 b0 00 00 00 00 00 00 00 0a 01 00 00

0000:00:02.0 PCI bridge: Intel Corp. Memory Controller Hub PCI Express Port A0
(rev 0c) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+
Stepping- SERR+ FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0, Cache Line Size: 0x10 (64 bytes)
Bus: primary=00, secondary=01, subordinate=03, sec-latency=0
I/O behind bridge: 0000b000-0000cfff
Memory behind bridge: fcc00000-fcefffff
Prefetchable memory behind bridge: 00000000fa000000-00000000fb700000
BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] Message Signalled Interrupts: 64bit- Queue=0/1
Enable-
Address: fee00000 Data: 0000
Capabilities: [64] #10 [0041]
00: 86 80 95 35 47 01 10 00 0c 00 04 06 10 00 01 00
10: 00 00 00 00 00 00 00 00 00 01 03 00 b0 c0 00 00
20: c0 fc e0 fc 01 fa 71 fb 00 00 00 00 00 00 00 00
30: 00 00 00 00 50 00 00 00 00 00 00 00 0a 01 06 00

0000:00:04.0 PCI bridge: Intel Corp. Memory Controller Hub PCI Express Port B0
(rev 0c) (prog-if 00 [Normal decode])
Control: I/O- Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+
Stepping- SERR+ FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0, Cache Line Size: 0x10 (64 bytes)
Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] Message Signalled Interrupts: 64bit- Queue=0/1
Enable-
Address: fee00000 Data: 0000
Capabilities: [64] #10 [0041]
00: 86 80 97 35 44 01 10 00 0c 00 04 06 10 00 01 00
10: 00 00 00 00 00 00 00 00 00 04 04 00 f0 00 00 20
20: f0 ff 00 00 f1 ff 01 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 50 00 00 00 00 00 00 00 0a 01 06 00

0000:00:05.0 PCI bridge: Intel Corp. Memory Controller Hub PCI Express Port B1
(rev 0c) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+
Stepping- SERR+ FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0, Cache Line Size: 0x10 (64 bytes)
Bus: primary=00, secondary=05, subordinate=05, sec-latency=0
I/O behind bridge: 0000d000-0000dfff
Memory behind bridge: fcf00000-fcffffff
BridgeCtl: Parity+ SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] Message Signalled Interrupts: 64bit- Queue=0/1
Enable-
Address: fee00000 Data: 0000
Capabilities: [64] #10 [0041]
00: 86 80 98 35 47 01 18 00 0c 00 04 06 10 00 01 00
10: 00 00 00 00 00 00 00 00 00 05 05 00 d0 d0 00 00
20: f0 fc f0 fc f1 ff 01 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 50 00 00 00 00 00 00 00 0a 01 07 00

0000:00:06.0 PCI bridge: Intel Corp. Memory Controller Hub PCI Express Port C0
(rev 0c) (prog-if 00 [Normal decode])
Control: I/O- Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+
Stepping- SERR+ FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0, Cache Line Size: 0x10 (64 bytes)
Bus: primary=00, secondary=06, subordinate=06, sec-latency=0
BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] Message Signalled Interrupts: 64bit- Queue=0/1
Enable-
Address: fee00000 Data: 0000
Capabilities: [64] #10 [0041]
00: 86 80 99 35 44 01 10 00 0c 00 04 06 10 00 01 00
10: 00 00 00 00 00 00 00 00 00 06 06 00 f0 00 00 20
20: f0 ff 00 00 f1 ff 01 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 50 00 00 00 00 00 00 00 0a 01 06 00

0000:00:1d.0 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB UHCI #1
(rev 02) (prog-if 00 [UHCI])
Subsystem: Intel Corp.: Unknown device 3439
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin A routed to IRQ 10
Region 4: I/O ports at a880 [size=32]
00: 86 80 d2 24 05 00 80 02 02 00 03 0c 00 00 80 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 81 a8 00 00 00 00 00 00 00 00 00 00 86 80 39 34
30: 00 00 00 00 00 00 00 00 00 00 00 00 0a 01 00 00

0000:00:1d.1 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB UHCI #2
(rev 02) (prog-if 00 [UHCI])
Subsystem: Intel Corp.: Unknown device 3439
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin B routed to IRQ 7
Region 4: I/O ports at ac00 [size=32]
00: 86 80 d4 24 05 00 80 02 02 00 03 0c 00 00 00 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 01 ac 00 00 00 00 00 00 00 00 00 00 86 80 39 34
30: 00 00 00 00 00 00 00 00 00 00 00 00 07 02 00 00

0000:00:1d.2 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB UHCI #3
(rev 02) (prog-if 00 [UHCI])
Subsystem: Intel Corp.: Unknown device 3439
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin C routed to IRQ 15
Region 4: I/O ports at ac80 [size=32]
00: 86 80 d7 24 05 00 80 02 02 00 03 0c 00 00 00 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 81 ac 00 00 00 00 00 00 00 00 00 00 86 80 39 34
30: 00 00 00 00 00 00 00 00 00 00 00 00 0f 03 00 00

0000:00:1d.7 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB2 EHCI
Controller (rev 02) (prog-if 20 [EHCI])
Subsystem: Intel Corp.: Unknown device 3439
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin D routed to IRQ 21
Region 0: Memory at fcbfec00 (32-bit, non-prefetchable) [size=1K]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] #0a [20a0]
00: 86 80 dd 24 06 01 90 02 02 20 03 0c 00 00 00 00
10: 00 ec bf fc 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 86 80 39 34
30: 00 00 00 00 50 00 00 00 00 00 00 00 05 04 00 00

0000:00:1e.0 PCI bridge: Intel Corp. 82801 PCI Bridge (rev c2) (prog-if 00
[Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+
Stepping- SERR+ FastB2B-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Bus: primary=00, secondary=07, subordinate=07, sec-latency=32
I/O behind bridge: 0000e000-0000efff
Memory behind bridge: fd000000-febfffff
Prefetchable memory behind bridge: fb800000-fbffffff
BridgeCtl: Parity+ SERR+ NoISA- VGA+ MAbort- >Reset- FastB2B-
00: 86 80 4e 24 47 01 80 00 c2 00 04 06 00 00 01 00
10: 00 00 00 00 00 00 00 00 00 07 07 20 e0 e0 80 02
20: 00 fd b0 fe 80 fb f0 fb 00 00 00 00 00 00 00 00
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0b 00

0000:00:1f.0 ISA bridge: Intel Corp. 82801EB/ER (ICH5/ICH5R) LPC Bridge (rev
02)
Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr+
Stepping- SERR+ FastB2B-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
00: 86 80 d0 24 4f 01 80 02 02 00 01 06 00 00 80 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

0000:00:1f.1 IDE interface: Intel Corp. 82801EB/ER (ICH5/ICH5R) Ultra ATA 100
Storage Controller (rev 02) (prog-if 8a [Master SecP PriP])
Subsystem: Intel Corp.: Unknown device 3439
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin A routed to IRQ 20
Region 0: I/O ports at <unassigned>
Region 1: I/O ports at <unassigned>
Region 2: I/O ports at <unassigned>
Region 3: I/O ports at <unassigned>
Region 4: I/O ports at fc00 [size=16]
Region 5: Memory at 88000000 (32-bit, non-prefetchable) [size=1K]
00: 86 80 db 24 07 00 88 02 02 8a 01 01 00 00 00 00
10: 01 00 00 00 01 00 00 00 01 00 00 00 01 00 00 00
20: 01 fc 00 00 00 00 00 88 00 00 00 00 86 80 39 34
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 01 00 00

0000:00:1f.2 IDE interface: Intel Corp. 82801EB (ICH5) Serial ATA 150 Storage
Controller (rev 02) (prog-if 8f [Master SecP SecO PriP PriO])
Subsystem: Intel Corp.: Unknown device 3460
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+
Stepping- SERR- FastB2B-
Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin A routed to IRQ 20
Region 0: I/O ports at a800 [size=8]
Region 1: I/O ports at a480 [size=4]
Region 2: I/O ports at a400 [size=8]
Region 3: I/O ports at a080 [size=4]
Region 4: I/O ports at a000 [size=16]
00: 86 80 d1 24 45 00 a0 02 02 8f 01 01 00 00 00 00
10: 01 a8 00 00 81 a4 00 00 01 a4 00 00 81 a0 00 00
20: 01 a0 00 00 00 00 00 00 00 00 00 00 86 80 60 34
30: 00 00 00 00 00 00 00 00 00 00 00 00 0f 01 00 00

0000:00:1f.3 SMBus: Intel Corp. 82801EB/ER (ICH5/ICH5R) SMBus Controller (rev
02)
Subsystem: Intel Corp.: Unknown device 3439
Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Interrupt: pin B routed to IRQ 22
Region 4: I/O ports at 0540 [size=32]
00: 86 80 d3 24 01 00 80 02 02 00 05 0c 00 00 00 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 41 05 00 00 00 00 00 00 00 00 00 00 86 80 39 34
30: 00 00 00 00 00 00 00 00 00 00 00 00 0b 02 00 00

0000:01:00.0 PCI bridge: Intel Corp. PCI Bridge Hub A (rev 09) (prog-if 00
[Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+
Stepping- SERR+ FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0, Cache Line Size: 0x10 (64 bytes)
Bus: primary=01, secondary=02, subordinate=02, sec-latency=48
I/O behind bridge: 0000b000-0000bfff
Memory behind bridge: fcd00000-fcdfffff
Prefetchable memory behind bridge: 00000000fa000000-00000000faf00000
BridgeCtl: Parity+ SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
Capabilities: [44] #10 [0071]
Capabilities: [5c] Message Signalled Interrupts: 64bit+ Queue=0/0
Enable-
Address: 0000000000000000 Data: 0000
Capabilities: [6c] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [d8] 00: 86 80 29 03 47 01 10 00 09 00 04 06 10 00 81 00
10: 00 00 00 00 00 00 00 00 01 02 02 30 b0 b0 a0 02
20: d0 fc d0 fc 01 fa f1 fa 00 00 00 00 00 00 00 00
30: 00 00 00 00 44 00 00 00 00 00 00 00 00 00 07 00

0000:01:00.1 PIC: Intel Corp. PCI Bridge Hub I/OxAPIC Interrupt Controller A
(rev 09) (prog-if 20 [IO(X)-APIC])
Subsystem: Intel Corp.: Unknown device 3439
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+
Stepping- SERR+ FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Region 0: Memory at fccfe000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] #10 [0001]
Capabilities: [6c] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00: 86 80 26 03 46 01 10 00 09 20 00 08 00 00 80 00
10: 00 e0 cf fc 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 86 80 39 34
30: 00 00 00 00 44 00 00 00 00 00 00 00 00 00 00 00

0000:01:00.2 PCI bridge: Intel Corp. PCI Bridge Hub B (rev 09) (prog-if 00
[Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+
Stepping- SERR+ FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0, Cache Line Size: 0x10 (64 bytes)
Bus: primary=01, secondary=03, subordinate=03, sec-latency=48
I/O behind bridge: 0000c000-0000cfff
Memory behind bridge: fce00000-fcefffff
Prefetchable memory behind bridge: 00000000fb000000-00000000fb700000
BridgeCtl: Parity+ SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
Capabilities: [44] #10 [0071]
Capabilities: [5c] Message Signalled Interrupts: 64bit+ Queue=0/0
Enable-
Address: 0000000000000000 Data: 0000
Capabilities: [6c] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [d8] 00: 86 80 2a 03 47 01 10 00 09 00 04 06 10 00 81 00
10: 00 00 00 00 00 00 00 00 01 03 03 30 c0 c0 a0 02
20: e0 fc e0 fc 01 fb 71 fb 00 00 00 00 00 00 00 00
30: 00 00 00 00 44 00 00 00 00 00 00 00 00 00 07 00

0000:01:00.3 PIC: Intel Corp. PCI Bridge Hub I/OxAPIC Interrupt Controller B
(rev 09) (prog-if 20 [IO(X)-APIC])
Subsystem: Intel Corp.: Unknown device 3439
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+
Stepping- SERR+ FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Region 0: Memory at fccff000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] #10 [0001]
Capabilities: [6c] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00: 86 80 27 03 46 01 10 00 09 20 00 08 00 00 80 00
10: 00 f0 cf fc 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 86 80 39 34
30: 00 00 00 00 44 00 00 00 00 00 00 00 00 00 00 00

0000:02:02.0 RAID bus controller: 3ware Inc 3ware ATA-RAID
Subsystem: 3ware Inc 3ware ATA-RAID
Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV+ VGASnoop- ParErr+
Stepping- SERR+ FastB2B-
Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 32 (2250ns min), Cache Line Size: 0x10 (64 bytes)
Interrupt: pin A routed to IRQ 17
Region 0: I/O ports at bc00 [size=256]
Region 1: Memory at fcdffc00 (64-bit, non-prefetchable) [size=256]
Region 3: Memory at fa800000 (64-bit, prefetchable) [size=8M]
Expansion ROM at fcde0000 [disabled] [size=64K]
Capabilities: [48] Power Management version 2
Flags: PMEClk- DSI- D1+ D2- AuxCurrent=0mA
PME(D0+,D1+,D2-,D3hot+,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00: c1 13 02 10 5f 01 30 02 00 00 04 01 10 20 00 00
10: 01 bc 00 00 04 fc df fc 00 00 00 00 0c 00 80 fa
20: 00 00 00 00 00 00 00 00 00 00 00 00 c1 13 02 10
30: 00 00 de fc 48 00 00 00 00 00 00 00 0a 01 09 00

0000:02:03.0 RAID bus controller: 3ware Inc 3ware ATA-RAID
Subsystem: 3ware Inc 3ware ATA-RAID
Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV+ VGASnoop- ParErr+
Stepping- SERR+ FastB2B-
Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 32 (2250ns min), Cache Line Size: 0x10 (64 bytes)
Interrupt: pin A routed to IRQ 18
Region 0: I/O ports at b800 [size=256]
Region 1: Memory at fcdff800 (64-bit, non-prefetchable) [size=256]
Region 3: Memory at fa000000 (64-bit, prefetchable) [size=8M]
Expansion ROM at fcdd0000 [disabled] [size=64K]
Capabilities: [40] PCI-X non-bridge device.
Command: DPERE- ERO- RBC=0 OST=0
Status: Bus=255 Dev=31 Func=0 64bit+ 133MHz+ SCD- USC-,
DC=simple, DMMRBC=0, DMOST=0, DMCRS=0, RSCEM-
Capabilities: [48] Power Management version 2
Flags: PMEClk- DSI- D1+ D2- AuxCurrent=0mA
PME(D0+,D1+,D2-,D3hot+,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00: c1 13 02 10 5f 01 30 02 00 00 04 01 10 20 00 00
10: 01 b8 00 00 04 f8 df fc 00 00 00 00 0c 00 00 fa
20: 00 00 00 00 00 00 00 00 00 00 00 00 c1 13 02 10
30: 00 00 dd fc 40 00 00 00 00 00 00 00 0a 01 09 00

0000:03:01.0 RAID bus controller: 3ware Inc 3ware ATA-RAID
Subsystem: 3ware Inc 3ware ATA-RAID
Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV+ VGASnoop- ParErr+
Stepping- SERR+ FastB2B-
Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 32 (2250ns min), Cache Line Size: 0x10 (64 bytes)
Interrupt: pin A routed to IRQ 19
Region 0: I/O ports at cc00 [size=256]
Region 1: Memory at fceffc00 (64-bit, non-prefetchable) [size=256]
Region 3: Memory at fb000000 (64-bit, prefetchable) [size=8M]
Expansion ROM at fcee0000 [disabled] [size=64K]
Capabilities: [48] Power Management version 2
Flags: PMEClk- DSI- D1+ D2- AuxCurrent=0mA
PME(D0+,D1+,D2-,D3hot+,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00: c1 13 02 10 5f 01 30 02 00 00 04 01 10 20 00 00
10: 01 cc 00 00 04 fc ef fc 00 00 00 00 0c 00 00 fb
20: 00 00 00 00 00 00 00 00 00 00 00 00 c1 13 02 10
30: 00 00 ee fc 48 00 00 00 00 00 00 00 0a 01 09 00

0000:05:00.0 Ethernet controller: Marvell Technology Group Ltd.: Unknown
device 4361 (rev 18)
Subsystem: Intel Corp.: Unknown device 3439
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+
Stepping- SERR+ FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0, Cache Line Size: 0x10 (64 bytes)
Interrupt: pin A routed to IRQ 223
Region 0: Memory at fcffc000 (64-bit, non-prefetchable) [size=16K]
Region 2: I/O ports at dc00 [size=256]
Expansion ROM at fcfc0000 [disabled] [size=128K]
Capabilities: [48] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=1 PME-
Capabilities: [50] Vital Product Data
Capabilities: [5c] Message Signalled Interrupts: 64bit+ Queue=0/1
Enable+
Address: 00000000fee0f00c Data: 41e1
Capabilities: [e0] #10 [0011]
00: ab 11 61 43 47 05 10 00 18 00 00 02 10 00 00 00
10: 04 c0 ff fc 00 00 00 00 01 dc 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 86 80 39 34
30: 00 00 fc fc 48 00 00 00 00 00 00 00 0a 01 00 00

0000:07:04.0 Ethernet controller: Intel Corp. 82541GI/PI Gigabit Ethernet
Controller (rev 05)
Subsystem: Intel Corp.: Unknown device 3439
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr+
Stepping- SERR+ FastB2B-
Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 32 (63750ns min), Cache Line Size: 0x10 (64 bytes)
Interrupt: pin A routed to IRQ 16
Region 0: Memory at febe0000 (32-bit, non-prefetchable) [size=128K]
Region 2: I/O ports at ec80 [size=64]
Capabilities: [dc] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=1 PME-
Capabilities: [e4] PCI-X non-bridge device.
Command: DPERE- ERO+ RBC=0 OST=0
Status: Bus=0 Dev=0 Func=0 64bit- 133MHz- SCD- USC-,
DC=simple, DMMRBC=2, DMOST=0, DMCRS=0, RSCEM-
00: 86 80 76 10 57 01 30 02 05 00 00 02 10 20 00 00
10: 00 00 be fe 00 00 00 00 81 ec 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 86 80 39 34
30: 00 00 00 00 dc 00 00 00 00 00 00 00 0a 01 ff 00

0000:07:06.0 RAID bus controller: 3ware Inc 3ware ATA-RAID
Subsystem: 3ware Inc 3ware ATA-RAID
Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV+ VGASnoop- ParErr+
Stepping- SERR+ FastB2B-
Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 32 (2250ns min), Cache Line Size: 0x10 (64 bytes)
Interrupt: pin A routed to IRQ 20
Region 0: I/O ports at e800 [size=256]
Region 1: Memory at febdbc00 (64-bit, non-prefetchable) [size=256]
Region 3: Memory at fb800000 (64-bit, prefetchable) [size=8M]
Expansion ROM at fe020000 [disabled] [size=64K]
Capabilities: [48] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0+,D1+,D2+,D3hot+,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00: c1 13 02 10 5f 01 30 02 00 00 04 01 10 20 00 00
10: 01 e8 00 00 04 bc bd fe 00 00 00 00 0c 00 80 fb
20: 00 00 00 00 00 00 00 00 00 00 00 00 c1 13 02 10
30: 00 00 bc fe 48 00 00 00 00 00 00 00 0f 01 09 00

0000:07:0c.0 VGA compatible controller: ATI Technologies Inc Rage XL (rev 27)
(prog-if 00 [VGA])
Subsystem: Intel Corp.: Unknown device 3439
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping+ SERR- FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 32 (2000ns min), Cache Line Size: 0x10 (64 bytes)
Interrupt: pin A routed to IRQ 11
Region 0: Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
Region 1: I/O ports at e400 [size=256]
Region 2: Memory at febda000 (32-bit, non-prefetchable) [size=4K]
Expansion ROM at fe000000 [disabled] [size=128K]
Capabilities: [5c] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00: 02 10 52 47 87 00 90 02 27 00 00 03 10 20 00 00
10: 00 00 00 fd 01 e4 00 00 00 a0 bd fe 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 86 80 39 34
30: 00 00 ba fe 5c 00 00 00 00 00 00 00 0b 01 08 00

# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Xeon(TM) CPU 3.20GHz
stepping : 10
cpu MHz : 3192.358
cache size : 2048 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 1
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm
constant_tsc pni monitor ds_cpl cid cx16 xtpr lahf_lm
bogomips : 6388.75

processor : 1
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Xeon(TM) CPU 3.20GHz
stepping : 10
cpu MHz : 3192.358
cache size : 2048 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 1
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm
constant_tsc pni monitor ds_cpl cid cx16 xtpr lahf_lm
bogomips : 6384.53

processor : 2
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Xeon(TM) CPU 3.20GHz
stepping : 10
cpu MHz : 3192.358
cache size : 2048 KB
physical id : 3
siblings : 2
core id : 0
cpu cores : 1
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm
constant_tsc pni monitor ds_cpl cid cx16 xtpr lahf_lm
bogomips : 6384.50

processor : 3
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Xeon(TM) CPU 3.20GHz
stepping : 10
cpu MHz : 3192.358
cache size : 2048 KB
physical id : 3
siblings : 2
core id : 0
cpu cores : 1
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm
constant_tsc pni monitor ds_cpl cid cx16 xtpr lahf_lm
bogomips : 6384.54

# cat /proc/interrupts
CPU0 CPU1 CPU2 CPU3
0: 17246519 2140 2140 2148 IO-APIC-edge timer
1: 3 3 2 2 IO-APIC-edge i8042
8: 3 0 1 0 IO-APIC-edge rtc
9: 0 0 0 0 IO-APIC-fasteoi acpi
12: 0 1 0 2 IO-APIC-edge i8042
14: 0 0 0 0 IO-APIC-edge libata
15: 0 0 0 0 IO-APIC-edge libata
16: 31000929 7811302 39894575 15870447 IO-APIC-fasteoi eth0
17: 1078416 3044826 2489404 1780707 IO-APIC-fasteoi 3w-9xxx
18: 7107793 931865 5531801 862511 IO-APIC-fasteoi 3w-9xxx
19: 494962 141885 25640 282908 IO-APIC-fasteoi 3w-9xxx
20: 2130674 3511229 1293435 2256288 IO-APIC-fasteoi 3w-9xxx,
libata
21: 0 0 0 0 IO-APIC-fasteoi
ehci_hcd:usb1
223: 0 0 0 1 PCI-MSI-edge eth1
NMI: 17252842 17252814 17252813 17252812
LOC: 17234121 17234121 17231585 17231584
ERR: 0
MIS: 0

# cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: AMCC Model: 9500S-12MI DISK Rev: 2.08
Type: Direct-Access ANSI SCSI revision: 03
Host: scsi0 Channel: 00 Id: 01 Lun: 00
Vendor: AMCC Model: 9500S-12MI DISK Rev: 2.08
Type: Direct-Access ANSI SCSI revision: 03
Host: scsi0 Channel: 00 Id: 02 Lun: 00
Vendor: AMCC Model: 9500S-12MI DISK Rev: 2.08
Type: Direct-Access ANSI SCSI revision: 03
Host: scsi0 Channel: 00 Id: 03 Lun: 00
Vendor: AMCC Model: 9500S-12MI DISK Rev: 2.08
Type: Direct-Access ANSI SCSI revision: 03
Host: scsi0 Channel: 00 Id: 04 Lun: 00
Vendor: AMCC Model: 9500S-12MI DISK Rev: 2.08
Type: Direct-Access ANSI SCSI revision: 03
Host: scsi1 Channel: 00 Id: 00 Lun: 00
Vendor: AMCC Model: 9500S-12MI DISK Rev: 2.08
Type: Direct-Access ANSI SCSI revision: 03
Host: scsi1 Channel: 00 Id: 01 Lun: 00
Vendor: AMCC Model: 9500S-12MI DISK Rev: 2.08
Type: Direct-Access ANSI SCSI revision: 03
Host: scsi1 Channel: 00 Id: 02 Lun: 00
Vendor: AMCC Model: 9500S-12MI DISK Rev: 2.08
Type: Direct-Access ANSI SCSI revision: 03
Host: scsi1 Channel: 00 Id: 03 Lun: 00
Vendor: AMCC Model: 9500S-12MI DISK Rev: 2.08
Type: Direct-Access ANSI SCSI revision: 03
Host: scsi1 Channel: 00 Id: 04 Lun: 00
Vendor: AMCC Model: 9500S-12MI DISK Rev: 2.08
Type: Direct-Access ANSI SCSI revision: 03
Host: scsi1 Channel: 00 Id: 05 Lun: 00
Vendor: AMCC Model: 9500S-12MI DISK Rev: 2.08
Type: Direct-Access ANSI SCSI revision: 03
Host: scsi2 Channel: 00 Id: 00 Lun: 00
Vendor: AMCC Model: 9500S-8MI DISK Rev: 2.08
Type: Direct-Access ANSI SCSI revision: 03
Host: scsi3 Channel: 00 Id: 00 Lun: 00
Vendor: AMCC Model: 9500S-8MI DISK Rev: 2.08
Type: Direct-Access ANSI SCSI revision: 03
Host: scsi6 Channel: 00 Id: 00 Lun: 00
Vendor: ATA Model: ST3200822AS Rev: 3.01
Type: Direct-Access ANSI SCSI revision: 05
Host: scsi7 Channel: 00 Id: 00 Lun: 00
Vendor: ATA Model: ST3200822AS Rev: 3.01
Type: Direct-Access ANSI SCSI revision: 05

Any advice on how to go about fixing this would be appreciated.

Kind regards,

Jesper Juhl <jesper.juhl@xxxxxxxxx>

PS. Please keep me on Cc: when replying.

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