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SubjectNFS bug in 2.2.9-ac? found (was Re: Kernel Panic: 2.2.9-ac1)
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Theo Van Dinter <felicity@kluge.net> writes:

> On Friday afternoon, I upgraded the news server from 2.2.4-ac? to 2.2.9-ac1.
> By Saturday morning, the news server was no more.
>
> News server HW: Single PII 266 w/ 128Mb RAM. 2x3Com 3x590 NICs. NCR53x875
> based SCSI adapter.
>
> When I came in on Monday morning, I wrote down the panic info on the console
> and tried running a ksymoops on it. Here's what it found:
>
> Copying default arch from ksymoops, bfd_arch=8 bfd_mach=0
>
> >>EIP; c011f153 <__free_page+97/d0>
> Trace; c0141ec9 <nfs_updatepage+251/2fc>


Ah. I see what's happened. It looks as though somebody has added the
statement 'page_cache_release(page);' to the definition of
nfs_unlock_page in nfs_cluster.h in the 2.2.9-ac series. I can't find
it in my tree, so I think I can claim innocence on this one...

Could people who've experienced problems with NFS under the 2.2.9-ac
series, please apply the following patch.

Cheers,
Trond

--- linux-2.2.9-ac3/include/linux/nfs_cluster.h-orig Mon Jun 7 17:29:29 1999
+++ linux-2.2.9-ac3/include/linux/nfs_cluster.h Mon Jun 7 17:33:17 1999
@@ -149,7 +149,6 @@
{
clear_bit(PG_locked, &page->flags);
wake_up(&page->wait);
- page_cache_release(page);
}
#endif

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