Tony Gale wrote:
> On 05-Dec-2000 Lord, Steve wrote:
> >
> > You state that your news server hangs after about a week - this is
> > the thing which needs digging into I think. Have you tried dropping
> > into kdb when this happens - a dump of all stack traces might be a
> > good starting point.
> >
>
> Well, I didn't have to wait too long. Here's my hand copied bt. If
> you need any more debugging, let me know, I still have the machine in
> kdb:
>
Well nothing obvious jumps out at me here, other than a possible
deadlock problem.
Looking at the code related to the backtraces I don't see a common lock
that
might be tripping us up.
In the backtrace; find_inode is that last function listed?
We probably need to look at the process table and find out what is
running and what might be stuck.
continue the system "go"
break it again and do the cpu back traces.
Is is possible to get a serial console hooked up?
I would help a great deal in capturing kdb output.
>
> CPU1
> ----
>
> find_inode+0x14 (0xf7676e00, 0x11028129, 0xf7e47568, 0x0, 0x0)
> ihold4+0x58 (0xf7676e00, 0x11028129, 0x0, 0x0)
> vn_get+0x28 (0xe9a9e5cc, 0xe07333db8, 0x0)
> xfs_iget_core+0x1d2 (0x0, 0xf7b6d000, 0x0, 0x11028129, 0x0)
> xfs_iget+0x2d (0xf7b6d000, 0x0, 0x11028129, 0x0, 0x0)
> xfs_dir_lookup_int+0x137 (0x0, 0xd28169a8, 0x5, 0xdcad980, 0xe0755f00)
> xfs_lookup+0x8a (0xd28169a8, 0xdacad980, 0xe0733efc, 0xe0733f00, 0x0)
> linvfs_lookup+0x70 (0xd29034c0, 0xdacad920)
> real_looup+0x7d
> path_walk+0x64f
> __user_walk+0x3c
> sys_newlstat+0x17
> system_call_0x33
>
> CPU0
> ----
>
> stext_lock+0x2180
> permission+0x32 (0xf76807c0, 0x1)
> path_walk+0x878 (0xe2857010, 0xf75fdfa0)
> __user_walk+0x3c (0x940b718, 0x9, 0xf75ddfa0)
> sys_access+0x86 (0x940b718, 0x4, 0xbffff0a4, 0xbffff036, 0xbffff006)
>
> -tony
>
> ---
> E-Mail: Tony Gale <gale@xxxxxxxxxxxxxxxxxx>
> Reappraisal, n.:
> An abrupt change of mind after being found out.
>
> The views expressed above are entirely those of the writer
> and do not represent the views, policy or understanding of
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