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SubjectRe: 2.6.35-rc6-git6: Reported regressions from 2.6.34
On 08/01/2010 08:46 AM, Rafael J. Wysocki wrote:
> This message contains a list of some regressions from 2.6.34,
> for which there are no fixes in the mainline known to the tracking team.
> If any of them have been fixed already, please let us know.
>
> If you know of any other unresolved regressions from 2.6.34, please let us
> know either and we'll add them to the list. Also, please let us know
> if any of the entries below are invalid.
>
> Each entry from the list will be sent additionally in an automatic reply
> to this message with CCs to the people involved in reporting and handling
> the issue.

> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=16312
> Subject : WARNING: at fs/fs-writeback.c:1127 __mark_inode_dirty
> Submitter : Zdenek Kabelac <zdenek.kabelac@gmail.com>
> Date : 2010-06-28 9:40 (35 days old)
> Message-ID : <AANLkTin24fr5O4_q5Xbo9Y_NKkEmtcp6Hgmr9_4qXaFz@mail.gmail.com>
> References : http://marc.info/?l=linux-kernel&m=127771804806465&w=2
> Handled-By : Jan Kara <jack@suse.cz>
> Patch : https://bugzilla.kernel.org/attachment.cgi?id=27272

I am beginning to think that Bug 16312 is not the same as Bug 16122. Even with
the patches from 16312, I still get warnings as below:

[ 11.728776] ------------[ cut here ]------------
[ 11.728787] WARNING: at fs/fs-writeback.c:964 __mark_inode_dirty+0x10f/0x1a0()
[ 11.728790] Hardware name: HP Pavilion dv2700 Notebook PC
[ 11.728792] Modules linked in: loop(+) dm_mod ide_cd_mod cdrom
snd_hda_codec_conexant ide_pci_generic arc4 ecb b43 rng_core mac80211
snd_hda_intel r8712u(C) cfg80211 snd_hda_codec amd74xx snd_pcm sg ide_core
rfkill led_class snd_timer ssb mmc_core pcmcia snd joydev k8temp hwmon
i2c_nforce2 pcmcia_core forcedeth serio_raw snd_page_alloc i2c_core battery ac
button ext4 mbcache jbd2 crc16 ohci_hcd sd_mod ehci_hcd usbcore fan processor
ahci libahci libata scsi_mod thermal
[ 11.728854] Pid: 2449, comm: udisks-part-id Tainted: G C
2.6.35-rc6-realtek+ #15
[ 11.728857] Call Trace:
[ 11.728865] [<ffffffff8104608a>] warn_slowpath_common+0x7a/0xb0
[ 11.728869] [<ffffffff810460d5>] warn_slowpath_null+0x15/0x20
[ 11.728874] [<ffffffff81129d5f>] __mark_inode_dirty+0x10f/0x1a0
[ 11.728879] [<ffffffff8111e07d>] touch_atime+0x12d/0x170
[ 11.728885] [<ffffffff810cab91>] generic_file_aio_read+0x5c1/0x720
[ 11.728890] [<ffffffff81107ca2>] do_sync_read+0xd2/0x110
[ 11.728896] [<ffffffff81077e7d>] ? trace_hardirqs_on+0xd/0x10
[ 11.728900] [<ffffffff811083c3>] vfs_read+0xb3/0x170
[ 11.728906] [<ffffffff81002d1c>] ? sysret_check+0x27/0x62
[ 11.728909] [<ffffffff811084cc>] sys_read+0x4c/0x80
[ 11.728914] [<ffffffff81002ceb>] system_call_fastpath+0x16/0x1b
[ 11.728917] ---[ end trace 32e16cacad33229f ]---
[ 11.728919] bdi-block not registered

The warnings do not occur with every boot and appear to be some kind of race
condition.

Larry


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