Re: BUG: warning at kernel/softirq.c:141/local_bh_enable()

From: John Philips
Date: Tue Oct 17 2006 - 10:53:45 EST

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> Could you send us, once your machine is handling its typical load :
>
> lspci -v
> ethtool -S eth6
> tc -s -d qdisc
> cat /proc/slabinfo
> cat /proc/meminfo

Eric,

Here's the output of the commands you mentioned. The box is handling a medium amount of load right now. I set eth6 back to auto-negotiation, and haven't seen the kernel BUG messages for the past 1/2 hour.

lspci -v:
0000:00:00.0 Host bridge: VIA Technologies, Inc. VT8601 [Apollo ProMedia] (rev 05)
Subsystem: VIA Technologies, Inc. VT8601 [Apollo ProMedia]
Flags: bus master, medium devsel, latency 8
Memory at e6000000 (32-bit, prefetchable) [size=4M]
Capabilities: [a0] AGP version 2.0

0000:00:01.0 PCI bridge: VIA Technologies, Inc. VT8601 [Apollo ProMedia AGP] (prog-if 00 [Normal decode])
Flags: bus master, 66MHz, medium devsel, latency 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
Memory behind bridge: e0000000-e2ffffff
Prefetchable memory behind bridge: 20000000-200fffff
Capabilities: [80] Power Management version 2

0000:00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] (rev 40)
Subsystem: VIA Technologies, Inc. VT82C686/A PCI to ISA Bridge
Flags: bus master, stepping, medium devsel, latency 0
Capabilities: [c0] Power Management version 2

0000:00:07.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06) (prog-if 8a [Master SecP PriP])
Subsystem: VIA Technologies, Inc. VT82C586/B/VT82C686/A/B/VT8233/A/C/VT8235 PIPC Bus Master IDE
Flags: bus master, medium devsel, latency 32
I/O ports at d800 [size=16]
Capabilities: [c0] Power Management version 2

0000:00:07.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 1a) (prog-if 00 [UHCI])
Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
Flags: bus master, medium devsel, latency 32, IRQ 12
I/O ports at d000 [size=32]
Capabilities: [80] Power Management version 2

0000:00:07.3 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 1a) (prog-if 00 [UHCI])
Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
Flags: bus master, medium devsel, latency 32, IRQ 12
I/O ports at d400 [size=32]
Capabilities: [80] Power Management version 2

0000:00:07.4 Bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 40)
Subsystem: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI]
Flags: medium devsel, IRQ 9
Capabilities: [68] Power Management version 2

0000:00:11.0 PCI bridge: Texas Instruments PCI2250 PCI-to-PCI Bridge (rev 02) (prog-if 00 [Normal decode])
Flags: bus master, medium devsel, latency 32
Bus: primary=00, secondary=02, subordinate=02, sec-latency=32
I/O behind bridge: 0000c000-0000cfff
Memory behind bridge: e3000000-e4ffffff
Prefetchable memory behind bridge: 20100000-201fffff
Capabilities: [dc] Power Management version 1

0000:00:12.0 Ethernet controller: Intel Corporation 82557/8/9 [Ethernet Pro 100] (rev 08)
Subsystem: Intel Corporation EtherExpress PRO/100+ Management Adapter
Flags: bus master, medium devsel, latency 32, IRQ 12
Memory at e6700000 (32-bit, non-prefetchable) [size=4K]
I/O ports at dc00 [size=64]
Memory at e6400000 (32-bit, non-prefetchable) [size=1M]
Expansion ROM at 20200000 [disabled] [size=1M]
Capabilities: [dc] Power Management version 2

0000:00:13.0 Ethernet controller: Intel Corporation 82557/8/9 [Ethernet Pro 100] (rev 08)
Subsystem: Intel Corporation EtherExpress PRO/100+ Management Adapter
Flags: bus master, medium devsel, latency 32, IRQ 10
Memory at e6702000 (32-bit, non-prefetchable) [size=4K]
I/O ports at e000 [size=64]
Memory at e6500000 (32-bit, non-prefetchable) [size=1M]
Expansion ROM at 20300000 [disabled] [size=1M]
Capabilities: [dc] Power Management version 2

0000:00:14.0 Ethernet controller: Intel Corporation 82557/8/9 [Ethernet Pro 100] (rev 08)
Subsystem: Intel Corporation EtherExpress PRO/100+ Management Adapter
Flags: bus master, medium devsel, latency 32, IRQ 11
Memory at e6701000 (32-bit, non-prefetchable) [size=4K]
I/O ports at e400 [size=64]
Memory at e6600000 (32-bit, non-prefetchable) [size=1M]
Expansion ROM at 20400000 [disabled] [size=1M]
Capabilities: [dc] Power Management version 2

0000:01:00.0 VGA compatible controller: Trident Microsystems CyberBlade/i1 (rev 6a) (prog-if 00 [VGA])
Subsystem: Trident Microsystems CyberBlade/i1
Flags: bus master, 66MHz, medium devsel, latency 32, IRQ 5
Memory at e1800000 (32-bit, non-prefetchable) [size=8M]
Memory at e2000000 (32-bit, non-prefetchable) [size=128K]
Memory at e1000000 (32-bit, non-prefetchable) [size=8M]
Expansion ROM at 20000000 [disabled] [size=64K]
Capabilities: [80] AGP version 2.0
Capabilities: [90] Power Management version 1

0000:02:00.0 Ethernet controller: National Semiconductor Corporation DP83815 (MacPhyter) Ethernet Controller
Subsystem: National Semiconductor Corporation DP83815 (MacPhyter) Ethernet Controller
Flags: bus master, medium devsel, latency 32, IRQ 5
I/O ports at c000 [size=256]
Memory at e4000000 (32-bit, non-prefetchable) [size=4K]
Expansion ROM at 20100000 [disabled] [size=64K]
Capabilities: [40] Power Management version 2

0000:02:01.0 Ethernet controller: National Semiconductor Corporation DP83815 (MacPhyter) Ethernet Controller
Subsystem: National Semiconductor Corporation DP83815 (MacPhyter) Ethernet Controller
Flags: bus master, medium devsel, latency 32, IRQ 11
I/O ports at c400 [size=256]
Memory at e4001000 (32-bit, non-prefetchable) [size=4K]
Expansion ROM at 20110000 [disabled] [size=64K]
Capabilities: [40] Power Management version 2

0000:02:02.0 Ethernet controller: National Semiconductor Corporation DP83815 (MacPhyter) Ethernet Controller
Subsystem: National Semiconductor Corporation DP83815 (MacPhyter) Ethernet Controller
Flags: bus master, medium devsel, latency 32, IRQ 10
I/O ports at c800 [size=256]
Memory at e4002000 (32-bit, non-prefetchable) [size=4K]
Expansion ROM at 20120000 [disabled] [size=64K]
Capabilities: [40] Power Management version 2

0000:02:03.0 Ethernet controller: National Semiconductor Corporation DP83815 (MacPhyter) Ethernet Controller
Subsystem: National Semiconductor Corporation DP83815 (MacPhyter) Ethernet Controller
Flags: bus master, medium devsel, latency 32, IRQ 12
I/O ports at cc00 [size=256]
Memory at e4003000 (32-bit, non-prefetchable) [size=4K]
Expansion ROM at 20130000 [disabled] [size=64K]
Capabilities: [40] Power Management version 2

ethtool -S eth6:
no stats available

tc -s -d qdisc:
<< too many rules to list... there's a /22 subnet in use and a HTB & SFQ rule exist for each IP >>

cat /proc/slabinfo:
slabinfo - version: 2.1
# name <active_objs> <num_objs> <objsize> <objperslab> <pagesperslab> : tunables <limit> <batchcount> <sharedfactor> : slabdata <active_slabs> <num_slabs> <sharedavail>
ip_fib_alias 37 113 32 113 1 : tunables 120 60 0 : slabdata 1 1 0
ip_fib_hash 31 113 32 113 1 : tunables 120 60 0 : slabdata 1 1 0
bridge_fdb_cache 0 0 64 59 1 : tunables 120 60 0 : slabdata 0 0 0
UNIX 22 22 352 11 1 : tunables 54 27 0 : slabdata 2 2 0
ipt_hashlimit 0 0 40 92 1 : tunables 120 60 0 : slabdata 0 0 0
ip_conntrack_expect 0 0 92 42 1 : tunables 120 60 0 : slabdata 0 0 0
ip_conntrack 3976 9008 236 16 1 : tunables 120 60 0 : slabdata 563 563 0
flow_cache 0 0 96 40 1 : tunables 120 60 0 : slabdata 0 0 0
cfq_ioc_pool 0 0 88 44 1 : tunables 120 60 0 : slabdata 0 0 0
cfq_pool 0 0 96 40 1 : tunables 120 60 0 : slabdata 0 0 0
crq_pool 0 0 44 84 1 : tunables 120 60 0 : slabdata 0 0 0
deadline_drq 0 0 48 78 1 : tunables 120 60 0 : slabdata 0 0 0
as_arq 20 63 60 63 1 : tunables 120 60 0 : slabdata 1 1 0
mqueue_inode_cache 1 8 480 8 1 : tunables 54 27 0 : slabdata 1 1 0
romfs_inode_cache 0 0 316 12 1 : tunables 54 27 0 : slabdata 0 0 0
ext2_inode_cache 0 0 416 9 1 : tunables 54 27 0 : slabdata 0 0 0
journal_handle 8 169 20 169 1 : tunables 120 60 0 : slabdata 1 1 0
journal_head 141 144 52 72 1 : tunables 120 60 0 : slabdata 2 2 0
revoke_table 2 254 12 254 1 : tunables 120 60 0 : slabdata 1 1 0
revoke_record 0 0 16 203 1 : tunables 120 60 0 : slabdata 0 0 0
ext3_inode_cache 13212 13212 432 9 1 : tunables 54 27 0 : slabdata 1468 1468 0
dnotify_cache 0 0 20 169 1 : tunables 120 60 0 : slabdata 0 0 0
eventpoll_pwq 0 0 36 101 1 : tunables 120 60 0 : slabdata 0 0 0
eventpoll_epi 0 0 96 40 1 : tunables 120 60 0 : slabdata 0 0 0
inotify_event_cache 0 0 28 127 1 : tunables 120 60 0 : slabdata 0 0 0
inotify_watch_cache 0 0 36 101 1 : tunables 120 60 0 : slabdata 0 0 0
kioctx 0 0 160 24 1 : tunables 120 60 0 : slabdata 0 0 0
kiocb 0 0 128 30 1 : tunables 120 60 0 : slabdata 0 0 0
fasync_cache 0 0 16 203 1 : tunables 120 60 0 : slabdata 0 0 0
shmem_inode_cache 4 10 400 10 1 : tunables 54 27 0 : slabdata 1 1 0
posix_timers_cache 0 0 88 44 1 : tunables 120 60 0 : slabdata 0 0 0
uid_cache 3 59 64 59 1 : tunables 120 60 0 : slabdata 1 1 0
ip_mrt_cache 0 0 96 40 1 : tunables 120 60 0 : slabdata 0 0 0
tcp_bind_bucket 15 203 16 203 1 : tunables 120 60 0 : slabdata 1 1 0
inet_peer_cache 48968 49855 64 59 1 : tunables 120 60 0 : slabdata 845 845 0
secpath_cache 0 0 32 113 1 : tunables 120 60 0 : slabdata 0 0 0
xfrm_dst_cache 0 0 288 13 1 : tunables 54 27 0 : slabdata 0 0 0
ip_dst_cache 11175 11175 256 15 1 : tunables 120 60 0 : slabdata 745 745 0
arp_cache 356 390 128 30 1 : tunables 120 60 0 : slabdata 13 13 0
RAW 9 9 448 9 1 : tunables 54 27 0 : slabdata 1 1 0
UDP 6 9 448 9 1 : tunables 54 27 0 : slabdata 1 1 0
tw_sock_TCP 22 40 96 40 1 : tunables 120 60 0 : slabdata 1 1 0
request_sock_TCP 8 59 64 59 1 : tunables 120 60 0 : slabdata 1 1 0
TCP 9 14 1056 7 2 : tunables 24 12 0 : slabdata 2 2 0
blkdev_ioc 17 127 28 127 1 : tunables 120 60 0 : slabdata 1 1 0
blkdev_queue 25 28 920 4 1 : tunables 54 27 0 : slabdata 7 7 0
blkdev_requests 20 23 168 23 1 : tunables 120 60 0 : slabdata 1 1 0
biovec-(256) 7 8 3072 2 2 : tunables 24 12 0 : slabdata 4 4 0
biovec-128 7 10 1536 5 2 : tunables 24 12 0 : slabdata 2 2 0
biovec-64 7 10 768 5 1 : tunables 54 27 0 : slabdata 2 2 0
biovec-16 7 20 192 20 1 : tunables 120 60 0 : slabdata 1 1 0
biovec-4 7 59 64 59 1 : tunables 120 60 0 : slabdata 1 1 0
biovec-1 83 203 16 203 1 : tunables 120 60 0 : slabdata 1 1 0
bio 354 354 64 59 1 : tunables 120 60 0 : slabdata 6 6 0
sock_inode_cache 55 55 352 11 1 : tunables 54 27 0 : slabdata 5 5 0
skbuff_fclone_cache 11 11 352 11 1 : tunables 54 27 0 : slabdata 1 1 0
skbuff_head_cache 500 820 192 20 1 : tunables 120 60 0 : slabdata 41 41 0
file_lock_cache 1 42 92 42 1 : tunables 120 60 0 : slabdata 1 1 0
proc_inode_cache 288 288 324 12 1 : tunables 54 27 0 : slabdata 24 24 0
sigqueue 8 27 144 27 1 : tunables 120 60 0 : slabdata 1 1 0
radix_tree_node 1386 1386 276 14 1 : tunables 54 27 0 : slabdata 99 99 0
bdev_cache 4 9 416 9 1 : tunables 54 27 0 : slabdata 1 1 0
sysfs_dir_cache 3345 3360 44 84 1 : tunables 120 60 0 : slabdata 40 40 0
mnt_cache 17 30 128 30 1 : tunables 120 60 0 : slabdata 1 1 0
inode_cache 1001 1001 308 13 1 : tunables 54 27 0 : slabdata 77 77 0
dentry_cache 15748 15748 124 31 1 : tunables 120 60 0 : slabdata 508 508 0
filp 338 528 160 24 1 : tunables 120 60 0 : slabdata 22 22 0
names_cache 2 2 4096 1 1 : tunables 24 12 0 : slabdata 2 2 0
idr_layer_cache 94 116 136 29 1 : tunables 120 60 0 : slabdata 4 4 0
buffer_head 22524 22542 48 78 1 : tunables 120 60 0 : slabdata 289 289 0
mm_struct 40 63 416 9 1 : tunables 54 27 0 : slabdata 7 7 0
vm_area_struct 741 880 88 44 1 : tunables 120 60 0 : slabdata 20 20 0
fs_cache 39 113 32 113 1 : tunables 120 60 0 : slabdata 1 1 0
files_cache 40 80 192 20 1 : tunables 120 60 0 : slabdata 4 4 0
signal_cache 53 66 352 11 1 : tunables 54 27 0 : slabdata 6 6 0
sighand_cache 45 45 1312 3 1 : tunables 24 12 0 : slabdata 15 15 0
task_struct 49 57 1280 3 1 : tunables 24 12 0 : slabdata 19 19 0
anon_vma 398 1017 8 339 1 : tunables 120 60 0 : slabdata 3 3 0
pgd 31 31 4096 1 1 : tunables 24 12 0 : slabdata 31 31 0
pid 57 202 36 101 1 : tunables 120 60 0 : slabdata 2 2 0
size-131072(DMA) 0 0 131072 1 32 : tunables 8 4 0 : slabdata 0 0 0
size-131072 0 0 131072 1 32 : tunables 8 4 0 : slabdata 0 0 0
size-65536(DMA) 0 0 65536 1 16 : tunables 8 4 0 : slabdata 0 0 0
size-65536 3 3 65536 1 16 : tunables 8 4 0 : slabdata 3 3 0
size-32768(DMA) 0 0 32768 1 8 : tunables 8 4 0 : slabdata 0 0 0
size-32768 1 1 32768 1 8 : tunables 8 4 0 : slabdata 1 1 0
size-16384(DMA) 0 0 16384 1 4 : tunables 8 4 0 : slabdata 0 0 0
size-16384 0 0 16384 1 4 : tunables 8 4 0 : slabdata 0 0 0
size-8192(DMA) 0 0 8192 1 2 : tunables 8 4 0 : slabdata 0 0 0
size-8192 56 56 8192 1 2 : tunables 8 4 0 : slabdata 56 56 0
size-4096(DMA) 0 0 4096 1 1 : tunables 24 12 0 : slabdata 0 0 0
size-4096 4094 4094 4096 1 1 : tunables 24 12 0 : slabdata 4094 4094 0
size-2048(DMA) 0 0 2048 2 1 : tunables 24 12 0 : slabdata 0 0 0
size-2048 506 536 2048 2 1 : tunables 24 12 0 : slabdata 268 268 0
size-1024(DMA) 0 0 1024 4 1 : tunables 54 27 0 : slabdata 0 0 0
size-1024 75 124 1024 4 1 : tunables 54 27 0 : slabdata 31 31 0
size-512(DMA) 0 0 512 8 1 : tunables 54 27 0 : slabdata 0 0 0
size-512 4279 4344 512 8 1 : tunables 54 27 0 : slabdata 543 543 0
size-256(DMA) 0 0 256 15 1 : tunables 120 60 0 : slabdata 0 0 0
size-256 141 255 256 15 1 : tunables 120 60 0 : slabdata 17 17 0
size-192(DMA) 0 0 192 20 1 : tunables 120 60 0 : slabdata 0 0 0
size-192 710 720 192 20 1 : tunables 120 60 0 : slabdata 36 36 0
size-128(DMA) 0 0 128 30 1 : tunables 120 60 0 : slabdata 0 0 0
size-128 360 360 128 30 1 : tunables 120 60 0 : slabdata 12 12 0
size-96(DMA) 0 0 96 40 1 : tunables 120 60 0 : slabdata 0 0 0
size-96 447 480 96 40 1 : tunables 120 60 0 : slabdata 12 12 0
size-64(DMA) 0 0 64 59 1 : tunables 120 60 0 : slabdata 0 0 0
size-32(DMA) 0 0 32 113 1 : tunables 120 60 0 : slabdata 0 0 0
size-64 1633 3127 64 59 1 : tunables 120 60 0 : slabdata 53 53 0
size-32 5553 5650 32 113 1 : tunables 120 60 0 : slabdata 50 50 0
kmem_cache 110 120 96 40 1 : tunables 120 60 0 : slabdata 3 3 0

cat /proc/meminfo:
MemTotal: 513972 kB
MemFree: 406748 kB
Buffers: 11312 kB
Cached: 44072 kB
SwapCached: 0 kB
Active: 44992 kB
Inactive: 19904 kB
HighTotal: 0 kB
HighFree: 0 kB
LowTotal: 513972 kB
LowFree: 406748 kB
SwapTotal: 0 kB
SwapFree: 0 kB
Dirty: 304 kB
Writeback: 0 kB
Mapped: 15712 kB
Slab: 40772 kB
CommitLimit: 256984 kB
Committed_AS: 19652 kB
PageTables: 320 kB
VmallocTotal: 516072 kB
VmallocUsed: 436 kB
VmallocChunk: 515516 kB

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Next message: Matthew Wilcox: "Re: [PATCH] Block on access to temporarily unavailable pci device"
Previous message: Matthew Wilcox: "[PATCH] Block on access to temporarily unavailable pci device"
In reply to: Eric Dumazet: "Re: BUG: warning at kernel/softirq.c:141/local_bh_enable()"
Next in thread: Eric Dumazet: "Re: BUG: warning at kernel/softirq.c:141/local_bh_enable()"
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