[OpenAFS] Problems with afs driver on a Solaris 8 SF15K

[Derrick J Brashear]

On Thu, 10 Mar 2005, rogbazan wrote:

> Hi, we had a client on a SunFire 15K, and it died, a few days ago.
> Sun Microsystems review the dump generated by the host at the panic
> time; and this what they told us about the problem:

It called osi_Panic in afs_GetDCache, but this isn't even OpenAFS, 
perhaps you could put something modern on the machine?

                     /* If we can't get space for 5 mins we give up and panic */
                     if (++downDCount > 300)
                         osi_Panic("getdcache");

so you had no free disk cache entries, if that version is like openafs


> Lines in the dump file:
>
> Mar 2 20:07:03 2005 panic[cpu482]/thread=3009a3306c0: getdcache <--
> Panic: it points to "afs" according to the lines below.
> Mar 2 20:07:03 2005
> Mar 2 20:07:03 2005 000002a10d587230 afs:osi_Panic+54 (78a1bad8, 0, 0,
> 2a10d5875d8, 0,
> 3009a3c7900)
> Mar 2 20:07:03 2005 %l0-3: 0000000078a1bad8 0000000000000000 0000000000002710
> 000000004226711d
> Mar 2 20:07:03 2005 %l4-7: 00000000040a0000 000003003dc71aa0 0000000000000000
> 000002a10d587260
> Mar 2 20:07:03 2005 000002a10d587300 afs:afs_GetDCache+e44
> (3003dc71aa0, 40b0000,
> 2a10d5877c4, 2a10d587
> 6a0, 2a10d58769c, 2)
> Mar 2 20:07:03 2005 %l0-3: 000000000000012d 0000000000204421 000003003dc71c28
> 0000000000005f74
> Mar 2 20:07:03 2005 %l4-7: 0000000000000001 000002a7c9a06000 0000000000000000
> 0000000000000000
> Mar 2 20:07:03 2005 000002a10d5875c0 afs:afs_PrefetchChunk+d8
> (3003dc71aa0, 3007272bc80,
> 3009a3c7900, 2
> a10d5877c4, 3003dc71aa0, 2a7c9a04000)
> Mar 2 20:07:03 2005 %l0-3: 0000000000000003 000003007272bc80 0000000000010000
> 00000000040b0000
> Mar 2 20:07:03 2005 %l4-7: 0000000000000003 000002a7c9a04000 00000300011e7ef8
> 0000000000000000
> Mar 2 20:07:03 2005 000002a10d5876d0 afs:afs_nfsrdwr+1920
> (3003dc71aa0, 2a10d587a00, 1, 0,
> 3009a3c7900,
> 0)
> Mar 2 20:07:03 2005 %l0-3: 0000000000000000 0000000004090000 00000000040a0000
> 0000000000000000
> Mar 2 20:07:03 2005 %l4-7: 0000000000000000 0000000010423c18 0000000000000000
> 0000000000000000
> Mar 2 20:07:03 2005 000002a10d587860 afs:afs_vmwrite+7c (3003dc71aa0,
> 2a10d587a00, 0,
> 3009a3c7900, 300b
> dea00a0, 300bdea0000)
> Mar 2 20:07:03 2005 %l0-3: 0000000078476e50 000003006489ba38 0000000000040000
> 0000000000000001
> Mar 2 20:07:03 2005 %l4-7: 000002a109577d20 0000030020b83240 0000000000010bed
> 000002a100dbf968
> Mar 2 20:07:03 2005 000002a10d587940 genunix:write+204 (4080000,
> 40000, 2002, 30069bcd5b0,
> 4, 40000)
> Mar 2 20:07:03 2005 %l0-3: 00000000789f2e70 0000000000040000 000003003dc71aa0
> 0000000000000000
> Mar 2 20:07:03 2005 %l4-7: 0000000000000004 0000000010423790 00000300654e05c0
> 0000030067ebcc78
> Mar 2 20:07:04 2005 000002a10d587a40 genunix:write32+30 (4, ff230000,
> 40000, 2, 21940,
> 125d0)
> Mar 2 20:07:04 2005 000002a10d587a40 genunix:write32+30 (4, ff230000,
> 40000, 2, 21940,
> 125d0)
> Mar 2 20:07:04 2005 %l0-3: 0000000000000004 0000030049c5d520 0000030066b7a028
> 0000000000000000
> Mar 2 20:07:04 2005 %l4-7: 0000000000000001 0000030049c5d520 0000000000000000
> 0000000000000000
> Mar 2 20:07:04 2005
> Mar 2 20:07:34 2005 syncing file systems... <-- it tries to close the
> file systemscorrectly.
> panic[cpu482]/thread=3009a3306c0: panic sync timeout <-- It does not
> sync, time expired.
> It generates a second  panic.
> Mar 2 20:07:34 2005 dumping to /dev/md/dsk/d70, offset 7283474432 <--
> The dump file of the second panic is saved.
>
>
> After that, a Sun engineer says:
>
>
> "I inform to you that the panic occurred in the "afs" driver. SUN does not
> support the "afs" driver, so we do not have the source code for it and we cannot
> provide the customer with a solution. This customer needs to contact the company
> that supports the "afs" driver.
> That was Transarc initially, but I believe Transarc was taken over by IBM.
> Best Regards,
> Paul McKernan, PTS-KERNEL AMER"
>
>
> Does any body knows about a similar problem or a patch that prevents that.
>
> The client is a Transarc v.3.6 Rel.2.48.
> Regards
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