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    SubjectRe: Bug#328135: kernel-image-2.6.11-1-686-smp: nfs reading process stuck in disk wait
    Hi Marc,

    would is be possible to test linux-image-2.6.12-1-686-smp from
    unstable to see if this problem persists? I am CCing the NFS
    maintainer and LKML as this looks reasonably nasty and they
    may be interested in looking into it.

    --
    Horms

    On Tue, Sep 13, 2005 at 03:47:07PM -0400, Marc Horowitz wrote:
    > Package: kernel-image-2.6.11-1-686-smp
    > Version: 2.6.11-7
    > Severity: important
    >
    > cvs D 00000008 0 6344 3830 6345 6162 (NOTLB)
    > db6bdd18 00000086 db6bdd08 00000008 00000002 e203cba4 c02edb60 00000001
    > 00000001 00000001 000001d2 c013fe43 c02f33a0 c02f2b80 c1805fa0 00000000
    > 00000000 b3f24580 000f9fc6 00000000 e3f4f540 e3f4f694 c02f33a0 00000002
    > Call Trace:
    > [<c013fe43>] __alloc_pages+0x2e3/0x420
    > [<c02ac668>] io_schedule+0x28/0x40
    > [<c013a6c5>] sync_page+0x45/0x60
    > [<c02ac9bf>] __wait_on_bit_lock+0x5f/0x70
    > [<c013a680>] sync_page+0x0/0x60
    > [<c0131f10>] wake_bit_function+0x0/0x60
    > [<c013af51>] __lock_page+0x91/0xa0
    > [<c0131f10>] wake_bit_function+0x0/0x60
    > [<c014286d>] page_cache_readahead+0x24d/0x2d0
    > [<c0131f10>] wake_bit_function+0x0/0x60
    > [<c013af9d>] find_get_page+0x3d/0x50
    > [<c013b897>] do_generic_mapping_read+0x517/0x630
    > [<c013bcb2>] __generic_file_aio_read+0x212/0x250
    > [<c013b9b0>] file_read_actor+0x0/0xf0
    > [<c013bd4b>] generic_file_aio_read+0x5b/0x80
    > [<f8cd1920>] nfs_file_read+0xa0/0xf0 [nfs]
    > [<c015ada7>] do_sync_read+0xb7/0xf0
    > [<c014d131>] vma_merge+0xd1/0x1d0
    > [<c014d7e1>] do_mmap_pgoff+0x461/0x790
    > [<c0131eb0>] autoremove_wake_function+0x0/0x60
    > [<c015aec5>] vfs_read+0xe5/0x160
    > [<c015b1e1>] sys_read+0x51/0x80
    > [<c0103123>] syscall_call+0x7/0xb
    >
    > I was doing a "cvs add" on a working directory in NFS, and the process
    > got stuck here. I don't know how to tell what file it was accessing.
    >
    > I have seen this happen twice with this kernel in the past month, but
    > I don't know how to reliably reproduce it.
    >
    > -- System Information:
    > Debian Release: 3.1
    > APT prefers testing
    > APT policy: (990, 'testing'), (500, 'unstable')
    > Architecture: i386 (i686)
    > Kernel: Linux 2.6.11-1-686-smp
    > Locale: LANG=en_US.ISO8859-1, LC_CTYPE=en_US.ISO8859-1 (charmap=ISO-8859-1)
    >
    > Versions of packages kernel-image-2.6.11-1-686-smp depends on:
    > ii coreutils [fileutils] 5.2.1-2 The GNU core utilities
    > ii initrd-tools 0.1.77 tools to create initrd image for p
    > ii module-init-tools 3.2-pre1-2 tools for managing Linux kernel mo
    >
    > -- no debconf information
    >
    >
    > --
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