Re: 2.6.20-mm2

[Maciej Rutecki]

kernel BUG at block/ll_rw_blk.c:2782!
invalid opcode: 0000 [#1]
PREEMPT
last sysfs file: /class/net/eth0/address
Modules linked in: xt_tcpudp xt_limit xt_state iptable_nat nf_nat
nf_conntrack_ipv4 nf_conntrack nfnetlink iptable_filter ip_tables
x_tables fuse ppdev lp thermal fan button processor ac battery tun ipv6
eeprom i2c_viapro usbhid snd_seq_dummy snd_seq_oss snd_seq_midi
snd_seq_midi_event snd_seq snd_via82xx gameport 8250_pnp 8250
serial_core snd_ac97_codec ac97_bus snd_pcm_oss snd_mixer_oss snd_pcm
snd_timer snd_page_alloc snd_mpu401_uart snd_rawmidi snd_seq_device
via686a snd i2c_isa uhci_hcd soundcore ide_cd i2c_core usbcore shpchp
pci_hotplug via_agp 8139cp 8139too mii cdrom parport_pc parport agpgart
evdev unix
CPU:    0
EIP:    0060:[<c01ec662>]    Not tainted VLI
EFLAGS: 00210282   (2.6.20-mm2 #1)
EIP is at bio_attempt_back_merge+0x22/0x70
eax: dbc62844   ebx: db4968f4   ecx: d71db720   edx: db4968f4
esi: d71db720   edi: dbc79fa8   ebp: dbc62844   esp: d46ebb4c
ds: 007b   es: 007b   fs: 00d8  gs: 0033  ss: 0068
Process gvim (pid: 3573, ti=d46ea000 task=d819b090 task.ti=d46ea000)
Stack: db4968f4 d71db720 c01edea9 00000000 dbc79f94 d71db720 dbfd0300
dbc62844
        d71db720 00000008 00000100 c01eb77b 20000000 d71db720 c12216c0
004ff928
        00000008 c019b8c7 00001000 00000000 00000100 00001000 00000001
c019f9b6
Call Trace:
  [<c01edea9>] __make_request+0x169/0x390
  [<c01eb77b>] generic_make_request+0x14b/0x1f0
  [<c019b8c7>] bio_add_page+0x37/0x50
  [<c019f9b6>] do_mpage_readpage+0x336/0x590
  [<c01eda58>] submit_bio+0x68/0x100
  [<c019fc70>] mpage_end_io_read+0x0/0x80
  [<c019f059>] mpage_bio_submit+0x19/0x20
  [<c019fde5>] mpage_readpages+0x85/0x140
  [<c01bc870>] ext3_get_block+0x0/0xf0
  [<c01bbb00>] ext3_readpages+0x0/0x20
  [<c015bab2>] __do_page_cache_readahead+0x1e2/0x2e0
  [<c01bc870>] ext3_get_block+0x0/0xf0
  [<c0198b10>] sleep_on_buffer+0x0/0x10
  [<c02fb12b>] out_of_line_wait_on_bit+0x7b/0x90
  [<c01980bf>] __find_get_block_slow+0x5f/0x120
  [<c015bc9b>] ra_submit+0xeb/0x110
  [<c015c46a>] page_cache_readahead_adaptive+0x15a/0x580
  [<c0198516>] __getblk+0x16/0x210
  [<c0188205>] __d_lookup+0xc5/0x180
  [<c01550a2>] do_generic_mapping_read+0x512/0x5f0
  [<c0157544>] generic_file_aio_read+0x104/0x240
  [<c01542f0>] file_read_actor+0x0/0x130
  [<c0174094>] get_unused_fd+0xa4/0xd0
  [<c01759f5>] do_sync_read+0xd5/0x120
  [<c017e796>] may_open+0x66/0x220
  [<c017423a>] __dentry_open+0x17a/0x1f0
  [<c0132260>] wake_bit_function+0x0/0x70
  [<c01743bb>] do_filp_open+0x4b/0x60
  [<c01762c1>] vfs_read+0xa1/0x140
  [<c0175920>] do_sync_read+0x0/0x120
  [<c0176721>] sys_read+0x41/0x70
  [<c0104130>] syscall_call+0x7/0xb
  =======================
 Code: 90 90 90 90 90 90 90 90 90 56 89 ce 53 f6 42 14 d8 89 d3 75 16 83
7a 18 01 75 10 e8 89 e8 ff ff 31 d2 85 c0 75 09 5b 5e 89 d0 c3 <0f> 0b
eb fe 8b 43 38 89 70 04 89 73 38 8b 46 1c c1 e8 09 03 43
 EIP: [<c01ec662>] bio_attempt_back_merge+0x22/0x70 SS:ESP 0068:d46ebb4c

-- 
Maciej Rutecki <maciej.rutecki@xxxxxxxxx>

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