Re: BUG: warning at fs/inotify.c:181 with linux-2.6.18

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C.Y.M wrote:
Michal Piotrowski wrote:

On 06/10/06, Nick Piggin <[email protected]> wrote:

C.Y.M wrote:

Since I updated to 2.6.18, I have had the following warnings in my

syslog.  Is

this a known problem? Better yet, is there a solution to this?  I am

running on

a i686 (Athlon XP) 32 bit cpu compiled under gcc-3.4.6.


Oct  5 08:27:31 sid kernel: BUG: warning at
fs/inotify.c:181/set_dentry_child_flags()
Oct  5 08:27:31 sid kernel:  [<c0182a10>]

set_dentry_child_flags+0x170/0x190

Oct  5 08:27:31 sid kernel:  [<c0182adf>]

remove_watch_no_event+0x5f/0x70

Oct  5 08:27:31 sid kernel:  [<c0182b08>]

inotify_remove_watch_locked+0x18/0x50

Oct  5 08:27:31 sid kernel:  [<c01833dc>] inotify_rm_wd+0x6c/0xb0
Oct  5 08:27:31 sid kernel:  [<c0183e98>]

sys_inotify_rm_watch+0x38/0x60

Oct  5 08:27:31 sid kernel:  [<c0102d8f>] syscall_call+0x7/0xb

I don't think it is a known problem. Is it reproduceable?

It is a known problem.
http://www.ussg.iu.edu/hypermail/linux/kernel/0608.1/1209.html



Thank you for the confirmation.  Please include me in this thread if someone
finds the answer. This bug seems to occur very frequently on my machine with
2.6.18.1 so I have been forced to revert back to 2.6.17.13 until I can fix it.

I haven't got around to looking at it yet, sorry.

It does seem like my inotify scalability patch is involved, however it is
interesting that you cannot reproduce the problem in 2.6.17.13.

I probably won't get around to having a look at it for a while, but if you
would like to speed up the process you could try running a git bisect to
find which patch is making the error trigger for you.

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