Bug#422255: [etch] Installing with root on JFS in LVM fails - Debian

This is a discussion on Bug#422255: [etch] Installing with root on JFS in LVM fails - Debian ; On Fri, May 11, 2007 1:38, Frans Pop said: > The second was using an Etch netinst image, and there I can reliably > reproduce the hangs you are seeing. They seem to occur during the > unpacking of tarballs. ...

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Thread: Bug#422255: [etch] Installing with root on JFS in LVM fails

  1. Bug#422255: [etch] Installing with root on JFS in LVM fails

    On Fri, May 11, 2007 1:38, Frans Pop said:
    > The second was using an Etch netinst image, and there I can reliably
    > reproduce the hangs you are seeing. They seem to occur during the
    > unpacking of tarballs. At least, in both cases the last command that is
    > visible in the output of 'ps' is "tar -xf -" (obviously a pipe from
    > another command).
    >
    > I've seen two hangs (in different installs):
    > - one at 31%; ps shows:
    > zcat /usr/lib/debootstrap/devices.tar.gz | tar -xf -
    > - one at 28% "extracting tzdata"; no 'zcat' visible in ps, just:
    > tar -xf - (in state D)
    >
    > State "D" is "Uninterruptible sleep (usually IO)"; there is no processor
    > activity; killing processes does not help, the system remains frozen.
    >
    > I've also tried a normal install (no crypto, no LVM) with / on jfs, and
    > that succeeded without problems.
    > However, with jfs on / using LVM without crypto, I can also reproduce the
    > problem, so the fact that encryption was used is irrelevant. The issue
    > seems to be with using jfs in LVM (or maybe jfs with device-mapper).
    >
    > It does look like we've got a kernel issue here in the 2.6.18 kernel that
    > has apparently been fixed in 2.6.20.


    Perhaps it's a kernel stack overflow issue? I remember there being a lot
    of fixes going into the kernel to reduce stack usage when the stack was
    reduced to 4kB and that many of the patches were against "stacked"
    filesystems (e.g. anyfs-on-lvm-on-md-on-something).

    Does dmesg show any interesting kernel messages after the installation
    barfs? (like stack overflow warnings)

    --
    David Härdeman



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  2. Bug#422255: [etch] Installing with root on JFS in LVM fails

    On Friday 11 May 2007 10:49, David Härdeman wrote:
    > Does dmesg show any interesting kernel messages after the installation
    > barfs? (like stack overflow warnings)


    Nothing.

    Dann suggested to try 'echo t > /proc/sysrq-trigger'. After that dmesg
    shows the attached dump.


    -----BEGIN PGP SIGNATURE-----
    Version: GnuPG v1.4.6 (GNU/Linux)

    iD8DBQBGRIsTgm/Kwh6ICoQRAoCeAJ9WPZfTxIl0Q/H6nLf0fu4sd7Ak9ACgiQym
    HB0lTtZQxY3ejTzHK/Ejek8=
    =AzeG
    -----END PGP SIGNATURE-----


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