Would disabling oplocks be a feasible workaround?
It seems oplocks are enabled in recent builds.


On Thu, Sep 24, 2009 at 11:09 AM, Joyce McIntosh <[email protected]> wrote:
> It was introduced in snv_119.
> Going forward to snv_124 will be the best solution.
>
> Joyce
>
> Brent Jones wrote:
>>
>> Did this issue exist in snv_122? I don't see where the issue was
>> introduced, and I can roll-back to 122 if the bug doesn't exist in
>> that build.
>>
>>
>> On Thu, Sep 24, 2009 at 11:06 AM, Joyce McIntosh <[email protected]>
>> wrote:
>>
>>>
>>> This is a known issue: CR 6884892 PANIC : Deadlock: cycle in blocking
>>> chain
>>>
>>> It is already addressed in snv_124.
>>>
>>> Thanks
>>> Joyce
>>>
>>> Brent Jones wrote:
>>>
>>>>
>>>> I just received a crash on one of my filers running snv_123.
>>>>
>>>> There was a bit of CIFS traffic, about 100Mbps when the crash occured.
>>>>
>>>> Is this a known issue, or should I open a case?
>>>>
>>>> Here is dmesg output:
>>>>
>>>>
>>>> Sep 24 13:45:49 pdxfilu01 unix: [ID 836849 kern.notice]
>>>> Sep 24 13:45:49 pdxfilu01 ^Mpanic[cpu2]/thread=ffffff007b656c60:
>>>> Sep 24 13:45:49 pdxfilu01 genunix: [ID 783603 kern.notice] Deadlock:
>>>> cycle in blocking chain
>>>> Sep 24 13:45:49 pdxfilu01 unix: [ID 100000 kern.notice]
>>>> Sep 24 13:45:49 pdxfilu01 genunix: [ID 655072 kern.notice]
>>>> ffffff007b656880 genunix:turnstile_block+799 ()
>>>> Sep 24 13:45:49 pdxfilu01 genunix: [ID 655072 kern.notice]
>>>> ffffff007b6568e0 unix:mutex_vector_enter+261 ()
>>>> Sep 24 13:45:49 pdxfilu01 genunix: [ID 655072 kern.notice]
>>>> ffffff007b656910 smbsrv:smb_node_release+23 ()
>>>> Sep 24 13:45:49 pdxfilu01 genunix: [ID 655072 kern.notice]
>>>> ffffff007b656960 genunix:remove_node+77 ()
>>>> Sep 24 13:45:49 pdxfilu01 genunix: [ID 655072 kern.notice]
>>>> ffffff007b6569d0 genunix:fem_remove_node+12d ()
>>>> Sep 24 13:45:49 pdxfilu01 genunix: [ID 655072 kern.notice]
>>>> ffffff007b656a00 genunix:fem_uninstall+34 ()
>>>> Sep 24 13:45:49 pdxfilu01 genunix: [ID 655072 kern.notice]
>>>> ffffff007b656a20 smbsrv:smb_fem_oplock_uninstall+26 ()
>>>> Sep 24 13:45:49 pdxfilu01 genunix: [ID 655072 kern.notice]
>>>> ffffff007b656a40 smbsrv:smb_fsop_oplock_uninstall+15 ()
>>>> Sep 24 13:45:49 pdxfilu01 genunix: [ID 655072 kern.notice]
>>>> ffffff007b656a80 smbsrv:smb_oplock_release+7a ()
>>>> Sep 24 13:45:49 pdxfilu01 genunix: [ID 655072 kern.notice]
>>>> ffffff007b656ac0 smbsrv:smb_ofile_close+16f ()
>>>> Sep 24 13:45:49 pdxfilu01 genunix: [ID 655072 kern.notice]
>>>> ffffff007b656ae0 smbsrv:smb_com_close+30 ()
>>>> Sep 24 13:45:49 pdxfilu01 genunix: [ID 655072 kern.notice]
>>>> ffffff007b656b80 smbsrv:smb_dispatch_request+455 ()
>>>> Sep 24 13:45:49 pdxfilu01 genunix: [ID 655072 kern.notice]
>>>> ffffff007b656bb0 smbsrv:smb_session_worker+4a ()
>>>> Sep 24 13:45:49 pdxfilu01 genunix: [ID 655072 kern.notice]
>>>> ffffff007b656c40 genunix:taskq_d_thread+b1 ()
>>>> Sep 24 13:45:49 pdxfilu01 genunix: [ID 655072 kern.notice]
>>>> ffffff007b656c50 unix:thread_start+8 ()
>>>> Sep 24 13:45:49 pdxfilu01 unix: [ID 100000 kern.notice]
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>
>>
>>
>>
>
>



-- 
Brent Jones
[email protected]
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