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SubjectRe: two lockups with 2.4.25
On Tue, Apr 20, 2004 at 04:01:32PM -0700, Chris Stromsoe wrote:
> I had two different machines lock up within hours of each other this
> morning. They have the exact same hardware and had very similar uptimes
> (within hours of each other).
>
> Both machines have a single SCSI disk on an onboard adaptec controller.
> All partitions are ext3. There are 3 other disks arranged in a RAID5
> partition that are formatted JFS.
>
> The machines run as virus quarantine servers, writing about 50k messages
> to disk per day. The files are written out into directories as
> year/month/day/hour/filename. There are usually around 2k to 3k files per
> directory.
>
> Both machines locked up hard. I was able to get sysrq+t output from one
> machine, but nothing from the other (it has no serial console). I ran the
> output through ksymoops. It's listed below.
>
>
>
> -Chris
>
>
> ksymoops 2.4.5 on i686 2.4.25. Options used
> -V (default)
> -k /proc/ksyms (specified)
> -l /proc/modules (specified)
> -o /lib/modules/2.4.25/ (specified)
> -m /boot/System.map-2.4.25 (specified)
>
> Pid: 26885, comm: sophie
> EIP: 0010:[<c0110ed7>] CPU: 1 EFLAGS: 00000202 Not tainted
> Using defaults from ksymoops -t elf32-i386 -a i386
> EAX: 00000001 EBX: 00000001 ECX: 00000202 EDX: 01000000
> ESI: f4762cc0 EDI: 081a1d28 EBP: e806fe94 DS: 0018 ES: 0018
> Warning (Oops_set_regs): garbage 'DS: 0018 ES: 0018' at end of register line ignored
> CR0: 8005003b CR2: 081a1d28 CR3: 14c2c000 CR4: 00000690
> Call Trace: [<c011100f>] [<c01259b7>] [<c01260de>] [<c01132f9>] [<c0113158>]
> [<c0224ce1>] [<c01145e3>] [<c0106fc4>]
> Warning (Oops_read): Code line not seen, dumping what data is available
>
>
> >>EIP; c0110ed7 <flush_tlb_others+9b/bc> <=====
>
> >>EDX; 01000000 Before first symbol
> >>ESI; f4762cc0 <_end+343c85cc/3896e90c>
> >>EDI; 081a1d28 Before first symbol
> >>EBP; e806fe94 <_end+27cd57a0/3896e90c>
>
> Trace; c011100f <flush_tlb_page+6f/7c>
> Trace; c01259b7 <do_wp_page+223/284>
> Trace; c01260de <handle_mm_fault+82/b8>
> Trace; c01132f9 <do_page_fault+1a1/4ed>
> Trace; c0113158 <do_page_fault+0/4ed>
> Trace; c0224ce1 <__kfree_skb+129/134>
> Trace; c01145e3 <schedule+45b/520>
> Trace; c0106fc4 <error_code+34/3c>

The thing is flush_tlb_others can't block. It calls invlpg.

> init R C3FFBF28 0 1 0 18517 (NOTLB)
> Call Trace: [<c0130fc1>] [<c01140da>] [<c0114000>] [<c0147bac>] [<c0147f38>]
> [<c0106ed3>]
> sophie R current 0 26885 12367 26884 (NOTLB)
> Call Trace: [<c0106fc4>]
> mimedefang R DA151F28 4 26886 12405 26887 26879 (NOTLB)
> Call Trace: [<c01140da>] [<c0114000>] [<c0147bac>] [<c0147f38>] [<c0106ed3>]
> mimedefang R EF435F28 2408 26887 12405 26888 26886 (NOTLB)
> Call Trace: [<c01140da>] [<c0114000>] [<c0147bac>] [<c0147f38>] [<c0106ed3>]
> mimedefang R CC989F28 0 26888 12405 26889 26887 (NOTLB)
> Call Trace: [<c01140da>] [<c0114000>] [<c0147bac>] [<c0147f38>] [<c0106ed3>]
> mimedefang R E5A83F28 0 26889 12405 26890 26888 (NOTLB)
> Call Trace: [<c01140da>] [<c0114000>] [<c0147bac>] [<c0147f38>] [<c0106ed3>]
> mimedefang R F67E5F28 0 26890 12405 26889 (NOTLB)
> Call Trace: [<c01140da>] [<c0114000>] [<c0147bac>] [<c0147f38>] [<c0106ed3>]
> Warning (Oops_read): Code line not seen, dumping what data is available
>

> >>EIP; c3fa2000 <_end+3c0790c/3896e90c> <=====
>
> Trace; c0194c68 <jfsIOWait+13c/168>
> Trace; c0105680 <arch_kernel_thread+28/38>
> Proc; jfsCommit
>
> >>EIP; f70c0cc0 <_end+36d265cc/3896e90c> <=====
>
> Trace; c019776b <txLazyCommit+23/ac>
> Trace; c0197960 <jfs_lazycommit+16c/1f4>
> Trace; c0105680 <arch_kernel_thread+28/38>
> Proc; jfsSync
>
> >>EIP; c0366180 <TxAnchor+40/60> <=====
>
> Trace; c0197ed3 <jfs_sync+25b/28c>
> Trace; c0105680 <arch_kernel_thread+28/38>
> Proc; ahc_dv_0

This might be a problem in JFS? shaggy, can you take a look at this?


> Trace; c0248577 <tcp_clean_rtx_queue+18f/2fc>
> Trace; c0224b3f <skb_release_data+6b/74>
> Trace; c0224b56 <kfree_skbmem+e/70>
> Trace; c0224ce1 <__kfree_skb+129/134>
> Trace; c024c369 <tcp_rcv_state_process+9e5/9f1>
> Trace; c0131497 <__free_pages+1f/24>
> Trace; c02539fe <tcp_v4_destroy_sock+15a/170>
> Trace; c0223a93 <sk_free+6f/78>
> Trace; c0244711 <tcp_close+815/820>
> Trace; c014c8ec <destroy_inode+5c/64>
> Trace; c014b37b <dput+1b/15c>
> Trace; c01218f6 <sys_rt_sigaction+92/13c>
> Trace; c010c605 <sys_ipc+3d/238>
> Trace; c0106ed3 <system_call+33/38>
> Proc; apache
>
> >>EIP; 00000001 Before first symbol <=====
>
> Trace; c019cd05 <sys_semtimedop+551/684>
> Trace; f8d0c83d <[eepro100]speedo_start_xmit+16d/1f4>
> Trace; c0231403 <nf_hook_slow+103/180>
> Trace; c022648d <memcpy_toiovec+35/64>
> Trace; c0224b3f <skb_release_data+6b/74>
> Trace; c0224b56 <kfree_skbmem+e/70>
> Trace; c0224ce1 <__kfree_skb+129/134>
> Trace; c0253926 <tcp_v4_destroy_sock+82/170>
> Trace; c0223a93 <sk_free+6f/78>
> Trace; c0244711 <tcp_close+815/820>
> Trace; c014c8ec <destroy_inode+5c/64>
> Trace; c014b37b <dput+1b/15c>
> Trace; c01218f6 <sys_rt_sigaction+92/13c>
> Trace; c010c605 <sys_ipc+3d/238>
> Trace; c0106ed3 <system_call+33/38>
> Proc; mimedefang

There's also a lot of network activity.
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