From: Rince <rincebrain@gmail.com>
To: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: linux-fsdevel@vger.kernel.org
Subject: Re: [patch] mm: close page_mkwrite races (try 3)
Date: Sat, 2 May 2009 18:12:49 -0400 [thread overview]
Message-ID: <5da0588e0905021512n7d0318c3wc4b8cab5bf2a2d09@mail.gmail.com> (raw)
In-Reply-To: <5da0588e0904300733t313b9168s634dfd51fc8a5b60@mail.gmail.com>
Well...that's different.
BUG: unable to handle kernel NULL pointer dereference at 0000000000000010
IP: [<ffffffffa02c8ff2>] _nfs4_do_setlk+0xe3/0x289 [nfs]
PGD 10e4f7067 PUD 109221067 PMD 0
Oops: 0000 [#1] SMP
last sysfs file: /sys/devices/virtual/block/md0/md/metadata_version
CPU 0
Modules linked in: autofs4 coretemp hwmon nfs lockd nfs_acl
auth_rpcgss sunrpc cachefiles fscache ipv6 cpufreq_ondemand
acpi_cpufreq freq_table kvm_intel kvm snd_hda_codec_idt snd_hda_intel
snd_hda_codec snd_hwdep snd_seq_dummy snd_seq_oss snd_seq_midi_event
snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss snd_pcm cpia_usb
e1000e snd_timer ppdev cpia snd ums_cypress parport_pc videodev
firewire_ohci i82975x_edac usb_storage parport firewire_core i2c_i801
edac_core v4l1_compat soundcore snd_page_alloc iTCO_wdt
v4l2_compat_ioctl32 pcspkr i2c_core crc_itu_t iTCO_vendor_support
raid1 [last unloaded: scsi_wait_scan]
Pid: 29418, comm: 10.1.1.2-manage Not tainted 2.6.30-rc4 #1
RIP: 0010:[<ffffffffa02c8ff2>] [<ffffffffa02c8ff2>]
_nfs4_do_setlk+0xe3/0x289 [nfs]
RSP: 0018:ffff880102361d30 EFLAGS: 00010246
RAX: ffff8800ce865f00 RBX: ffff88010b4b74d8 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 00000000000000d0 RDI: 0000000000000138
RBP: ffff880102361de0 R08: ffff880126557000 R09: ffff8800b38c3900
R10: ffffffffa02cbd1c R11: ffff880126553c00 R12: 00000000fffffff4
R13: 0000000000000000 R14: ffff88012d42f5c0 R15: ffff88012d42f5c0
FS: 0000000000000000(0000) GS:ffff880028023000(0000) knlGS:0000000000000000
CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 0000000000000010 CR3: 0000000016eda000 CR4: 00000000000026e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process 10.1.1.2-manage (pid: 29418, threadinfo ffff880102360000, task
ffff8800015b5c00)
Stack:
ffff880102361d40 0000000600000001 ffff8800ce865f00 ffffffffa02cbc5c
0000000000000000 ffff880126555c00 ffff880102361d90 ffffffffa02db960
0000000000000000 ffff880128093000 0000000000000001 ffffffffa02b88aa
Call Trace:
[<ffffffffa02cbc5c>] ? nfs4_open_recover_helper+0x82/0x97 [nfs]
[<ffffffffa02b88aa>] ? __put_nfs_open_context+0x31/0x98 [nfs]
[<ffffffffa02c9646>] nfs4_lock_reclaim+0x60/0x8d [nfs]
[<ffffffffa02d57a3>] nfs4_do_reclaim+0x13d/0x322 [nfs]
[<ffffffffa02d5b21>] nfs4_run_state_manager+0x199/0x27f [nfs]
[<ffffffffa02d5988>] ? nfs4_run_state_manager+0x0/0x27f [nfs]
[<ffffffffa02d5988>] ? nfs4_run_state_manager+0x0/0x27f [nfs]
[<ffffffff8105e7bf>] kthread+0x5b/0x88
[<ffffffff81011dba>] child_rip+0xa/0x20
[<ffffffff8101177d>] ? restore_args+0x0/0x30
[<ffffffff8105e764>] ? kthread+0x0/0x88
[<ffffffff81011db0>] ? child_rip+0x0/0x20
Code: 10 e1 49 8b 47 58 4d 8b af 90 00 00 00 be d0 00 00 00 bf 38 01
00 00 41 bc f4 ff ff ff 48 8b 80 a0 00 00 00 48 89 85 60 ff ff ff <49>
8b 45 10 4c 8b 70 38 49 8b 86 00 01 00 00 48 8b 80 a8 02 00
RIP [<ffffffffa02c8ff2>] _nfs4_do_setlk+0xe3/0x289 [nfs]
RSP <ffff880102361d30>
CR2: 0000000000000010
---[ end trace 205a6f9494aa30de ]---
It's unclear to me whether I should blame this on the patches applied,
or that this is just something never triggered unless the
aforementioned bug is fixed...
- Rich
--
Aquele que ri do destino conquistará a fortuna. -- Benjamin Disraeli
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next prev parent reply other threads:[~2009-05-02 22:12 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-14 7:11 [patch] mm: close page_mkwrite races (try 2) Nick Piggin
2009-04-15 8:25 ` [patch] mm: close page_mkwrite races (try 3) Nick Piggin
2009-04-16 1:38 ` Andrew Morton
2009-04-16 2:03 ` Nick Piggin
2009-04-16 2:23 ` Nick Piggin
2009-04-28 18:57 ` Ravikiran G Thirumalai
2009-04-29 7:12 ` Nick Piggin
2009-04-29 7:24 ` Andrew Morton
2009-04-29 7:45 ` Nick Piggin
2009-04-29 12:39 ` Trond Myklebust
2009-04-29 15:27 ` Andrew Morton
2009-04-29 16:45 ` Trond Myklebust
2009-04-30 14:22 ` Rince
2009-04-30 14:33 ` Rince
2009-05-02 22:12 ` Rince [this message]
2009-05-03 1:38 ` Trond Myklebust
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