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DescriptionRajashekhar M A
2010-09-13 10:23:17 UTC
Description of problem:
kernel panic seen on REHL6.0 host with Emulex LPe12002 card on running IO with target faults. Could not collect the serial console dumps yet, but attached is a screen capture of the panic message.
Version-Release number of selected component (if applicable):
RHEL 6.0 Snap 13 (2.6.32-70.el6.x86_64)
lpfc version: 0:8.3.5.17
How reproducible:
Seen once so far.
Steps to Reproduce:
1. Configure 40 LUNs on the target (with 8 paths each)
2. Configure 3LVs on the devices.
3. Start IO to the LVs and run target side faults to offline/online the FC paths to the LUNs.
Actual results:
The host panics in lpfc_abort_handler().
Expected results:
The host should should not panic.
Additional info:
Bugzilla will be updated with a complete panic message if this issue is hit again.
(In reply to comment #0)
> Description of problem:
>
> kernel panic seen on REHL6.0 host with Emulex LPe12002 card on running IO with
> target faults. Could not collect the serial console dumps yet, but attached is
> a screen capture of the panic message.
>
> Version-Release number of selected component (if applicable):
>
> RHEL 6.0 Snap 13 (2.6.32-70.el6.x86_64)
> lpfc version: 0:8.3.5.17
>
> How reproducible:
>
> Seen once so far.
>
> Steps to Reproduce:
> 1. Configure 40 LUNs on the target (with 8 paths each)
> 2. Configure 3LVs on the devices.
> 3. Start IO to the LVs and run target side faults to offline/online the FC
> paths to the LUNs.
>
> Actual results:
>
> The host panics in lpfc_abort_handler().
>
> Expected results:
>
> The host should should not panic.
>
> Additional info:
>
> Bugzilla will be updated with a complete panic message if this issue is hit
> again.
Is this readily reproducible?
Can you reproduce this with kdump configured to collect a kernel memory dump?
I have the hosts with me and I will try to reproduce this issue with kdump configured. I will upload the vmcore here. Is there anything else I should configure other than kdump?
Yes, but we have not been able to reproduce this so far. We are hitting the bugzilla #634589 due to which the IO stalls. And it's hard to reproduce the panic without IO. We have enabled kdump this time, once we hit a panic, I will post the vmcore.
(In reply to comment #9)
> Created attachment 452161[details]
> patch for 633231
Vaios,
This patch also needs to be included into a rhel6.1 update to enable subsequent backporting into rhel6.0z.
Rob
(In reply to comment #11)
> (In reply to comment #9)
> > Created attachment 452161[details] [details]
> > patch for 633231
>
>
> Vaios,
>
> This patch also needs to be included into a rhel6.1 update to enable subsequent
> backporting into rhel6.0z.
>
> Rob
Vaios,
Just noticed that this is already included in bz645882.
Should be all set on this.
Rob
Not able to reproduce the panic in our testing so far after applying the patch in comment 9. The patch looks good to me.
Comment 15Andrius Benokraitis
2010-11-15 19:14:24 UTC
Setting as a dupe of the 6.1 bug, which will then be flagged for 6.0.z with the specific patch included there.
*** This bug has been marked as a duplicate of bug 645882 ***