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Message-ID: <87bokddfr9.fsf@canonical.com> Date: Wed, 20 Jun 2012 19:01:30 +0100 From: Luis Henriques <luis.henriques@...onical.com> To: Bret Towe <magnade@...il.com> Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, ocfs2-devel@....oracle.com, Andrew Morton <akpm@...ux-foundation.org>, mfasheh@...e.com, jlbec@...lplan.org Subject: Re: BUG in ofcs2_change_file_space Bret Towe <magnade@...il.com> writes: > am I just going into spam folders? > > On Mon, May 21, 2012 at 8:11 PM, Bret Towe <magnade@...il.com> wrote: >> On Thu, Jan 5, 2012 at 2:23 PM, Bret Towe <magnade@...il.com> wrote: >>> got an oops on kernel 3.2 with ocfs2 >>> thunderbird loading an email with images is the trigger looks repeatable for me >>> cache file being saved to /home directory is my guess >>> >>> firefox hasnt done it but its cache is in a ramdisk >>> 3.1.6 wasn't doing this >>> >>> let me know what info you need >>> below is the backtrace from syslog >>> I would like to test whatever patch you have also >>> >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.675822] BUG: unable to handle >>> kernel NULL pointer dereference at 0000000000000038 >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.675981] IP: >>> [<ffffffffa0524f35>] __ocfs2_change_file_space+0x915/0xe40 [ocfs2] >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.676228] PGD ca69a067 PUD >>> c745b067 PMD 0 >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.676326] Oops: 0000 [#1] PREEMPT SMP >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.676416] CPU 1 >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.676457] Modules linked in: >>> nls_iso8859_1 nls_cp437 vfat fat uas usb_storage ocfs2 jbd2 quota_tree >>> crc32c cpufreq_userspace cpufreq_powersave cpufreq_conservative >>> binfmt_misc iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi fuse >>> ocfs2_dlmfs ocfs2_stack_o2cb ocfs2_dlm ocfs2_nodemanager nfsd nfs >>> lockd fscache auth_rpcgss nfs_acl sunrpc ipv6 af_packet tcp_bic >>> ocfs2_stack_user dlm configfs ocfs2_stackglue powernow_k8 mperf usblp >>> loop kvm_amd kvm snd_hda_codec_via snd_hda_codec_hdmi snd_seq_dummy >>> snd_seq_oss snd_seq_midi snd_rawmidi snd_hda_intel snd_hda_codec >>> snd_seq_midi_event snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_seq >>> psmouse snd_timer snd_seq_device serio_raw pcspkr k10temp joydev snd >>> evbug evdev i2c_piix4 soundcore snd_page_alloc button processor raid10 >>> raid456 async_pq async_xor xor async_memcpy async_raid6_recov raid6_pq >>> async_tx raid1 raid0 multipath linear md_mod atl1c [last unloaded: >>> scsi_wait_scan] >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.678364] >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.678399] Pid: 2835, comm: >>> thunderbird-bin Not tainted 3.2.0+ #45 System manufacturer System >>> Product Name/F1A75-M >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.678610] RIP: >>> 0010:[<ffffffffa0524f35>] [<ffffffffa0524f35>] >>> __ocfs2_change_file_space+0x915/0xe40 [ocfs2] >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.678859] RSP: >>> 0018:ffff8800c75ffe28 EFLAGS: 00010246 >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.678915] RAX: 0000000000000000 >>> RBX: ffff88010b810000 RCX: ffff88010b364400 >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.678915] RDX: 0000000000000000 >>> RSI: 0000000000000001 RDI: ffffffffa053250d >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.678915] RBP: ffff8800c75ffec8 >>> R08: 00caec6a28080000 R09: ffff88010b364400 >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.678915] R10: 000000000000cd75 >>> R11: 0000000000000000 R12: 0000000000000000 >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.678915] R13: ffff88008b823e78 >>> R14: ffff88008b823f18 R15: ffff8800cae091e0 >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.678915] FS: >>> 00007fde742f5700(0000) GS:ffff88010fc80000(0000) >>> knlGS:0000000000000000 >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.678915] CS: 0010 DS: 0000 >>> ES: 0000 CR0: 0000000080050033 >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.678915] CR2: 0000000000000038 >>> CR3: 00000000ca540000 CR4: 00000000000006e0 >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.678915] DR0: 0000000000000000 >>> DR1: 0000000000000000 DR2: 0000000000000000 >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.678915] DR3: 0000000000000000 >>> DR6: 00000000ffff0ff0 DR7: 0000000000000400 >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.678915] Process >>> thunderbird-bin (pid: 2835, threadinfo ffff8800c75fe000, task >>> ffff8800c6788000) >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.678915] Stack: >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.678915] ffff8800c75fffd8 >>> ffff8800c75fffd8 000000000000cd75 0000000000000000 >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.678915] 000000010ab4c900 >>> 0000000000000000 000000000000cd75 0000000000000000 >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.678915] ffff88010b810000 >>> ffff88008b823d98 ffff8800c75ffe98 ffff8800caec6a28 >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.678915] Call Trace: >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.678915] [<ffffffffa05254d4>] >>> ocfs2_fallocate+0x74/0x80 [ocfs2] >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.678915] [<ffffffff8111e04d>] >>> do_fallocate+0xed/0x160 >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.678915] [<ffffffff8111e106>] >>> sys_fallocate+0x46/0x70 >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.678915] [<ffffffff8155c3d2>] >>> system_call_fastpath+0x16/0x1b >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.678915] Code: 68 49 89 55 78 >>> 4c 89 ee 48 8b 55 b8 49 89 45 60 4c 89 ff 49 89 45 70 e8 da 5d 00 00 >>> 85 c0 41 89 c4 0f 88 53 01 00 00 48 8b 55 88 <f7> 42 38 00 10 10 00 74 >>> 05 41 80 4f 14 01 4c 89 fe 48 89 df e8 >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.678915] RIP >>> [<ffffffffa0524f35>] __ocfs2_change_file_space+0x915/0xe40 [ocfs2] >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.678915] RSP <ffff8800c75ffe28> >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.678915] CR2: 0000000000000038 >>> Jan 5 14:02:23 notmini64 kernel: [ 1431.695509] ---[ end trace >>> 7e71a95e14e247b3 ]--- >> >> >> a patch has been available for this for a while now >> found here: http://oss.oracle.com/pipermail/ocfs2-devel/2012-January/008464.html >> but it still has not hit mainline >> is there any way we can get this included? I believe something like this would be more appropriated, as a NULL as the 'file' parameter seems to be valid in that context: --- fs/ocfs2/file.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index 6e39668..84822a4 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -1950,7 +1950,7 @@ static int __ocfs2_change_file_space(struct file *file, struct inode *inode, if (ret < 0) mlog_errno(ret); - if (file->f_flags & O_SYNC) + if (file && (file->f_flags & O_SYNC)) handle->h_sync = 1; ocfs2_commit_trans(osb, handle); -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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