On Sun, 12 Mar 2006, Jiri Slaby wrote:
Thanks Jiri.
Certainly looks like a problem for me.
Puzzling though as this part of the code has been in operation for a long
long time?
It would be really helpful if you could give a little more information how
it happened so I can try and reproduce it?
> Andrew Morton wrote:
> >ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.16-rc6/2.6.16-rc6-mm1/
> [snip]
> >+remove-redundant-check-from-autofs4_put_super.patch
> >+autofs4-follow_link-missing-funtionality.patch
Maybe it is related to the error in this patch that Andrew pointed out.
I'm still thinking about how I should deal with that.
> >
> > Update autofs4 patches in -mm.
> Hello,
>
> I caught this during ftp browsing autofs-bind-mounted directories. I don't know
> circumstancies and if the patches above are source of problem. I also don't know
> if -rc6-mm1 is the first one.
>
> BUG: atomic counter underflow at:
> [<c0104736>] show_trace+0x13/0x15
> [<c0104873>] dump_stack+0x1e/0x20
> [<c01d6c97>] autofs4_wait+0x751/0x93a
> [<c01d543b>] try_to_fill_dentry+0xca/0x11c
> [<c01d59b3>] autofs4_revalidate+0xe1/0x148
> [<c0171338>] do_lookup+0x40/0x157
> [<c0172ec4>] __link_path_walk+0x804/0xe8c
> [<c017359c>] link_path_walk+0x50/0xe8
> [<c01738b7>] do_path_lookup+0x10f/0x26d
> [<c017429c>] __user_walk_fd+0x33/0x50
> [<c016d226>] vfs_stat_fd+0x1e/0x50
> [<c016d30d>] vfs_stat+0x20/0x22
> [<c016d328>] sys_stat64+0x19/0x2d
> [<c0103127>] syscall_call+0x7/0xb
>
> regards,
> --
> Jiri Slaby www.fi.muni.cz/~xslaby
> ~\-/~ [email protected] ~\-/~
> B67499670407CE62ACC8 22A032CC55C339D47A7E
>
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