On Wed, Jul 27, 2011 at 3:05 PM, Andrew Deason <[email protected]>wrote:

> On Wed, 27 Jul 2011 13:50:44 -0400
> Michael Meffie <[email protected]> wrote:
>
> > This looks similar to the panic fixed by Andrew's recent fix,
> >
> >    http://gerrit.openafs.org/5086
> >
> > which fixes a reference count imbalance.
>
> The panic that that change fixes doesn't occur (or is very unlikely to
> occur) unless you have gerrit 4625; it's not that.
>
> Aaron, if you run 'log' in crash, what do the last few lines say?
> Filter out any sensitive information or whatnot; I wouldn't expect there
> to be any, but I don't know what's in your log.
>

Hi Andrew,

Here's the output of the last few, what I think are relavent lines:

Modules linked in: openafs(P)(U) ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4
iptable_filter ip_tables ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6
xt_state nf_conntrack ip6table_filter ip6_tables ipv6 ppdev parport_pc
parport vmware_balloon vmxnet3 i2c_piix4 i2c_core sg shpchp ext4 mbcache
jbd2 sd_mod crc_t10dif sr_mod cdrom vmw_pvscsi pata_acpi ata_generic
ata_piix dm_mod [last unloaded: scsi_wait_scan]

Modules linked in: openafs(P)(U) ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4
iptable_filter ip_tables ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6
xt_state nf_conntrack ip6table_filter ip6_tables ipv6 ppdev parport_pc
parport vmware_balloon vmxnet3 i2c_piix4 i2c_core sg shpchp ext4 mbcache
jbd2 sd_mod crc_t10dif sr_mod cdrom vmw_pvscsi pata_acpi ata_generic
ata_piix dm_mod [last unloaded: scsi_wait_scan]
Pid: 3573, comm: httpd Tainted: P           ----------------
2.6.32-131.6.1.el6.x86_64 #1 VMware Virtual Platform
RIP: 0010:[<ffffffff814dbfd1>]  [<ffffffff814dbfd1>] mutex_lock+0x21/0x50
RSP: 0018:ffff8800610bdac8  EFLAGS: 00010246
RAX: 0000000000000000 RBX: 28ec2299000000e7 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 28ec2299000000e7
RBP: ffff8800610bdad8 R08: ffff88006f8b6148 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 28ec2299000000df
R13: 0000000000000001 R14: 28ec2299000000e7 R15: ffff8800610bdc08
FS:  00007f814d64f7e0(0000) GS:ffff88000a200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f814ebbe0c8 CR3: 000000006a2e1000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process httpd (pid: 3573, threadinfo ffff8800610bc000, task
ffff88006fc174c0)
Stack:
 28ec2299000000e7 28ec2299000000df ffff8800610bdaf8 ffffffffa02b8ec6
<0> ffff8800610bdb08 ffff880061096e00 ffff8800610bdb28 ffffffffa02af261
<0> ffff8800612dea00 0000000000000000 ffff880061096e00 ffff880061096e60
Call Trace:
 [<ffffffffa02b8ec6>] afs_mutex_enter+0x16/0x50 [openafs]
 [<ffffffffa02af261>] rxi_ResetCall+0xa1/0x460 [openafs]
 [<ffffffffa02b4804>] rxi_NewCall+0x1b4/0x220 [openafs]
 [<ffffffffa02b5290>] rx_NewCall+0x110/0x280 [openafs]
 [<ffffffffa02b5a03>] ? rx_NewConnection+0x1c3/0x1e0 [openafs]
 [<ffffffffa02a8ab7>] RXAFS_FetchStatus+0x47/0x200 [openafs]
 [<ffffffffa0272cee>] ? afs_ConnBySA+0x28e/0x4e0 [openafs]
 [<ffffffffa028ad92>] ? afs_FindVCache+0x4a2/0x5c0 [openafs]
 [<ffffffff81012969>] ? read_tsc+0x9/0x20
 [<ffffffff81098920>] ? getnstimeofday+0x60/0xf0
 [<ffffffffa028b752>] afs_FetchStatus+0x112/0x620 [openafs]
 [<ffffffffa028ffa6>] afs_GetAccessBits+0xf6/0x110 [openafs]
 [<ffffffff81180cfd>] ? __link_path_walk+0x59d/0x820
 [<ffffffff811910e0>] ? mntput_no_expire+0x30/0x110
 [<ffffffffa02900d6>] afs_AccessOK+0x116/0x1c0 [openafs]
 [<ffffffffa02905a1>] afs_access+0x421/0x490 [openafs]
 [<ffffffffa02cb41c>] afs_linux_permission+0x8c/0x120 [openafs]
 [<ffffffff8117ee1e>] inode_permission+0x8e/0xd0
 [<ffffffff8117061a>] sys_chdir+0x4a/0x90
 [<ffffffff8100b172>] system_call_fastpath+0x16/0x1b
Code: ff ff 85 c0 75 ed eb d6 66 90 55 48 89 e5 48 83 ec 10 48 89 1c 24 4c
89 64 24 08 0f 1f 44 00 00 48 89 fb e8 a2 f4 ff ff 48 89 df <f0> ff 0f 79 05
e8 25 00 00 00 65 48 8b 04 25 08 cc 00 00 48 2d
RIP  [<ffffffff814dbfd1>] mutex_lock+0x21/0x50
 RSP <ffff8800610bdac8>

Thanks,
-Aaron


>
> --
> Andrew Deason
> [email protected]
>
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-- 
Aaron Knister
Systems Administrator
Division of Information Technology
University of Maryland, Baltimore County
[email protected]

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