[Bug 35562] New: ext4 regression in 2.6.39

[Bug 35562] New: ext4 regression in 2.6.39

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=35562

           Summary: ext4 regression in 2.6.39
           Product: File System
           Version: 2.5
    Kernel Version: 2.6.39
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: blocking
          Priority: P1
         Component: ext4
        AssignedTo: fs_ext4@kernel-bugs.osdl.org
        ReportedBy: arthur@psw.ro
                CC: hussam@visp.net.lb
        Regression: Yes



Hussam Al-Tayeb <hussam@visp.net.lb> changed:

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                 CC|                            |hussam@visp.net.lb


Created an attachment (id=58932)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=58932)
kernel.log

System is Archlinux x64 which just received kernel 2.6.39 in testing repos.

The attached call traces are recorded in kernel.log while I was downloading
with ktorrent (max speed 2.5 MB/s).

I have little to no experience in producing a good bugzilla report but if more
info is needed just ask and I'll do my best.

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[Bug 35562] ext4 regression in 2.6.39

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https://bugzilla.kernel.org/show_bug.cgi?id=35562


Theodore Tso <tytso@mit.edu> changed:

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--- Comment #1 from Theodore Tso <tytso@mit.edu>  2011-05-23 14:52:15 ---
1)   Can you reproduce this problem reliably?

2)   What were you doing at the time of that you saw these messages? 

3)  Did the system recover eventually, or did it completely hang?

The fact that you were able to pull this out of kernel.log afterwards tends to
indicate that the system eventually recovered, but I don't want to make that
assumption.  Or did you eventually have to reboot or reset the machine?

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[Bug 35562] ext4 regression in 2.6.39

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https://bugzilla.kernel.org/show_bug.cgi?id=35562





--- Comment #2 from Arthur Titeica <arthur@psw.ro>  2011-05-23 16:15:27 ---
1)   Can you reproduce this problem reliably?

Re: No, I've tried to replicate the conditions but nothing unusual happened.

2)   What were you doing at the time of that you saw these messages?

Re: I noticed that all apps got stuck. They looked normal but didn't react to
any commands. I tried to su in a terminal emulator I had open but that didn't
work either (no error but no login also).

3)  Did the system recover eventually, or did it completely hang?

Re: I managed to reboot using magic sysrq (REISUB)

Some other thing I forgot to mention: the whole system (except /boot) is LVM2
encrypted (crypto_luks).

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[Bug 35562] ext4 regression in 2.6.39

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https://bugzilla.kernel.org/show_bug.cgi?id=35562


Alan <alan@lxorguk.ukuu.org.uk> changed:

           What    |Removed                     |Added
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             Status|NEW                         |RESOLVED
                 CC|                            |alan@lxorguk.ukuu.org.uk
         Resolution|                            |INSUFFICIENT_DATA




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