Re: [PATCH] Remove softlockup from invalidate_mapping_pages. (might be dm related)

[Steinar H. Gunderson]

On Sat, May 13, 2006 at 08:43:17AM -0700, Andrew Morton wrote:
> Please try it without NUMA - we've had a few problems there of late.  If
> that fixes it then I have patches for you to test ;)

No go:

[ 2364.512764] Unable to handle kernel paging request at ffffffff403ae552 RIP: 
[ 2364.517369] [<ffffffff403ae552>]
[ 2364.526396] PGD 203027 PUD 0 
[ 2364.529385] Oops: 0010 [1] SMP 
[ 2364.532546] CPU 0 
[ 2364.534571] Modules linked in: w83627hf_wdt eeprom ide_generic ide_disk ide_cd cdrom ipv6 psmouse i2c_nforce2 serio_raw pcspkr evdev parport_pc parport i2c_core rtc ext3 jbd mbcache raid6 raid5 xor rai
d10 raid1 raid0 linear md_mod dm_mod sd_mod sata_nv sata_sil libata tg3 scsi_mod forcedeth generic amd74xx ide_core ehci_hcd ohci_hcd thermal processor fan unix
[ 2364.566790] Pid: 3433, comm: md1_resync Not tainted 2.6.17-rc4 #1
[ 2364.572877] RIP: 0010:[<ffffffff403ae552>] [<ffffffff403ae552>]
[ 2364.578612] RSP: 0018:ffff81007d5d3c40  EFLAGS: 00010287
[ 2364.584118] RAX: 0000000000000010 RBX: ffff8100109cce90 RCX: 0000000000000290
[ 2364.591246] RDX: 000000000000000a RSI: 0000000000000282 RDI: ffff81007df604d8
[ 2364.598372] RBP: ffff81007d5d3c68 R08: 0000000000001d4b R09: ffff810076aa9e78
[ 2364.605499] R10: ffff810076aa9e78 R11: 0000000000001000 R12: ffff81007dca7448
[ 2364.612627] R13: ffff81007df60488 R14: ffff81007df73528 R15: ffff81007dca7448
[ 2364.619755] FS:  0000000000000000(0000) GS:ffffffff804c3000(0000) knlGS:00000000f7e968e0
[ 2364.627848] CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[ 2364.633588] CR2: ffffffff403ae552 CR3: 000000007b91c000 CR4: 00000000000006e0
[ 2364.640715] Process md1_resync (pid: 3433, threadinfo ffff81007d5d2000, task ffff81007fcb47d0)
[ 2364.649325] Stack: ffffffff8806a93b ffff8100109cce90 ffff81007dc304c8 ffff81007df60488 
[ 2364.657182]        ffff81007df73528 ffff81007d5d3ca8 ffffffff8807070e 0000000000000001 
[ 2364.665238]        ffff81007df73528 ffff81007dd8b9a8 
[ 2364.670310] Call Trace: <ffffffff8806a93b>{:scsi_mod:scsi_dispatch_cmd+381}
[ 2364.677308]        <ffffffff8807070e>{:scsi_mod:scsi_request_fn+735} <ffffffff802cbdad>{__generic_unplug_device+36}
[ 2364.687790]        <ffffffff802cbed9>{generic_unplug_device+0} <ffffffff802cbef7>{generic_unplug_device+30}
[ 2364.697570]        <ffffffff880d753c>{:dm_mod:dm_table_unplug_all+52} <ffffffff880d51cf>{:dm_mod:dm_unplug_all+35}
[ 2364.707964]        <ffffffff8811272e>{:raid5:unplug_slaves+105} <ffffffff88112a7d>{:raid5:raid5_unplug_device+107}
[ 2364.718350]        <ffffffff880ec66a>{:md_mod:md_do_sync+1300} <ffffffff803acb5d>{thread_return+0}
[ 2364.727361]        <ffffffff880e67e8>{:md_mod:md_thread+0} <ffffffff880e68ed>{:md_mod:md_thread+261}
[ 2364.736542]        <ffffffff880e67e8>{:md_mod:md_thread+0} <ffffffff80239e67>{kthread+207}
[ 2364.744858]        <ffffffff8020a522>{child_rip+8} <ffffffff80239d98>{kthread+0}
[ 2364.752300]        <ffffffff8020a51a>{child_rip+0}
[ 2364.757303] 
[ 2364.757304] Code:  Bad RIP value.
[ 2364.762134] RIP [<ffffffff403ae552>] RSP <ffff81007d5d3c40>
[ 2364.767722] CR2: ffffffff403ae552

This is about the same crash as I used to see with -rc2.

I guess it's time for memtest86, just in case I botched the RAM while moving it...

/* Steinar */
-- 
Homepage: http://www.sesse.net/
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