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    SubjectRe: reiserfs locking (v2)
    On (07/02/10 15:12), Frederic Weisbecker wrote:
    > > As well as this:
    > >
    > > [ 202.300464] REISERFS error (device sda9): vs-2100 add_save_link:
    > > search_by_key ([-1 7812832 0x1 IND]) returned 1
    > > [ 202.300473] REISERFS (device sda9): Remounting filesystem read-only
    > > [ 202.301603] ------------[ cut here ]------------
    > > [ 202.301615] WARNING: at fs/reiserfs/journal.c:3436
    > > journal_end+0x5b/0xaf()
    > > [ 202.301619] Hardware name: F3JC
    > > [ 202.301622] Modules linked in: snd_seq_dummy snd_seq_oss
    > > snd_seq_midi_event snd_seq snd_seq_device snd_hda_codec_si3054
    > > snd_hda_codec_realtek snd_hwdep snd_pcm_oss snd_mixer_oss asus_laptop
    > > sparse_keymap sdhci_pci sdhci snd_hda_intel mmc_core led_class snd_hda_codec
    > > rng_core snd_pcm snd_timer snd_page_alloc snd i2c_i801 soundcore psmouse sg
    > > evdev serio_raw r8169 mii usbhid hid uhci_hcd ehci_hcd sr_mod usbcore cdrom
    > > sd_mod ata_piix
    > > [ 202.301689] Pid: 5055, comm: a.out Not tainted
    > > 2.6.35-rc3-dbg-git6-00502-g94feaba-dirty #65
    > > [ 202.301693] Call Trace:
    > > [ 202.301701] [<c102e3a2>] warn_slowpath_common+0x65/0x7a
    > > [ 202.301707] [<c1102d95>] ? journal_end+0x5b/0xaf
    > > [ 202.301712] [<c102e3c6>] warn_slowpath_null+0xf/0x13
    > > [ 202.301718] [<c1102d95>] journal_end+0x5b/0xaf
    > > [ 202.301725] [<c10eebaa>] reiserfs_truncate_file+0x19f/0x233
    > > [ 202.301733] [<c10f1ba1>] reiserfs_vfs_truncate_file+0xd/0xf
    > > [ 202.301738] [<c1084883>] vmtruncate+0x23/0x29
    > > [ 202.301745] [<c10b4ad4>] inode_setattr+0x47/0x68
    > > [ 202.301751] [<c10f1b3f>] reiserfs_setattr+0x242/0x297
    > > [ 202.301758] [<c12c5d05>] ? down_write+0x22/0x2a
    > > [ 202.301764] [<c10b4d6f>] notify_change+0x15c/0x26b
    > > [ 202.301770] [<c10a35c7>] do_truncate+0x64/0x7d
    > > [ 202.301776] [<c12c69b0>] ? _raw_spin_unlock+0x33/0x3f
    > > [ 202.301783] [<c10ad892>] do_last+0x450/0x459
    > > [ 202.301789] [<c10ada5b>] do_filp_open+0x1c0/0x41a
    > > [ 202.301798] [<c1029081>] ? get_parent_ip+0xb/0x31
    > > [ 202.301804] [<c1029123>] ? sub_preempt_count+0x7c/0x89
    > > [ 202.301810] [<c10b5746>] ? alloc_fd+0xb4/0xbf
    > > [ 202.301816] [<c10a3f46>] do_sys_open+0x48/0xdf
    > > [ 202.301821] [<c10a3ffb>] sys_open+0x1e/0x26
    > > [ 202.301827] [<c10027d3>] sysenter_do_call+0x12/0x32
    > > [ 202.301833] ---[ end trace c4e3312bdadd2dc5 ]---
    >
    >
    >
    > Ah that's wicked. I'll try your testcase for that too.
    >
    > Thanks a lot for providing these!
    >

    I'm not very lucky at hitting this. Saw it several times (may be 3).


    Sergey
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