[Bugme-new] [Bug 33112] New: Possible file corruption (RAID10+LVM+ext4) with chromium and kernel build

bugzilla-daemon at bugzilla.kernel.org bugzilla-daemon at bugzilla.kernel.org
Tue Apr 12 00:56:08 PDT 2011


https://bugzilla.kernel.org/show_bug.cgi?id=33112

           Summary: Possible file corruption (RAID10+LVM+ext4) with
                    chromium and kernel build
           Product: IO/Storage
           Version: 2.5
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Other
        AssignedTo: io_other at kernel-bugs.osdl.org
        ReportedBy: cate at cateee.net
        Regression: Yes


[Set to "Component: Other", because the long block chain]

Just after solving bug #32062 I did a system update (debian unstable, new gcc
and binutils + gold [but I don't think gold is enabled on default]).

Now at every kernel update I have a linker error, usually on some **/built-in.o
(something like "invalid character in 1,1"), or in some *.lds or *.dbg files
(invalid/empty file).

This is solvable with a make mrproper and a complete build.

I was thinking about some Debian chaintool problem, but earlier today I did
further check and I found that the **/built-in.o files seem to contain the
chromium history (debian chromium), which I think it is saved frequently.

BTW I use the browser a lot when building the kernels, and I often shut down
the system just after the kernel build.

So I think there is a problem on flushing the buffers to the disk.

You can see my setup (and some dmesg) in
https://bugzilla.kernel.org/show_bug.cgi?id=32062 and in
https://bugzilla.kernel.org/show_bug.cgi?id=24012 , but in short: 4 disks, with
a RAID10. I build a LVM on them, and then some ext4 fs, and usually I have a
lot of free memory.

In next days I'll try to bisect the bug, but it will be slow, especially if the
bug is not 100% reproducible. BTW: do you have some tools to detect earlier
possible disk corruptions?

ciao
    cate

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