Re: deadlocks in rbd unmap and map

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We'll have to run the test again for the OSD log data. Forgot to make
sure that the ceph log partition wasn't full.


client: /sys/kernel/debug/ceph/e88d2684-47c1-5a64-a275-6e375d11b557.client1242818/osdc

REQUESTS 1 homeless 0
11475   osd2    37.a819967      [2]/2   [2]/2
rbd_header.d960431b30e2f        0x400019        3       0'0     call
LINGER REQUESTS
91      osd0    37.851f81e1     [0]/0   [0]/0
rbd_header.d94f26cf2eafd        0x24    0       WC/0
93      osd0    37.98ca7eab     [0]/0   [0]/0
rbd_header.d94b96a21ce28        0x24    0       WC/0
106     osd0    37.9720d758     [0]/0   [0]/0
rbd_header.d94f53a7da731        0x24    0       WC/0
104     osd1    37.de8088a1     [1]/1   [1]/1
rbd_header.d94f52e0f9b4d        0x24    0       WC/0
105     osd1    37.db9af301     [1]/1   [1]/1
rbd_header.d94f1ed40c97 0x24    0       WC/0
14      osd2    37.a819967      [2]/2   [2]/2
rbd_header.d960431b30e2f        0x24    2       WC/0
96      osd2    37.8fb9befc     [2]/2   [2]/2
rbd_header.d94f03028192c        0x24    0       WC/0
82      osd3    37.370c3798     [3]/3   [3]/3
rbd_header.d94da25e9605b        0x24    0       WC/0
87      osd4    37.9c510a15     [4]/4   [4]/4
rbd_header.d94f079de7a55        0x24    0       WC/0
85      osd5    37.832091ad     [5]/5   [5]/5
rbd_header.d94f22d15792a        0x24    0       WC/0
94      osd5    37.344d5f3      [5]/5   [5]/5   rbd_header.d94f6b30f4a
 0x24    0       WC/0
103     osd5    37.4cb8bb74     [5]/5   [5]/5
rbd_header.d94ef2bac496b        0x24    0       WC/0
77      osd6    37.7c480437     [6]/6   [6]/6
rbd_header.d94c057a9331d        0x24    1       WC/0
88      osd7    37.58634cdc     [7]/7   [7]/7
rbd_header.d94da55fd8a34        0x24    1       WC/0
98      osd7    37.a61c68b      [7]/7   [7]/7
rbd_header.d94ce7d11bf7f        0x24    0       WC/0


rbd image '3f370dbabff91bbb7ff23ae7a96e5cb414cac3408013cefed6d4b627b5eed9c7':
        size 9536 MB in 2385 objects
        order 22 (4096 kB objects)
        block_name_prefix: rbd_data.d960431b30e2f
        format: 2
        features: layering, striping
        flags:
        stripe unit: 4096 kB
        stripe count: 1


osdmaptool: osdmap file '/tmp/osdmap'
 object '3f370dbabff91bbb7ff23ae7a96e5cb414cac3408013cefed6d4b627b5eed9c7'
-> 37.c6 -> [7]

On Tue, Jul 26, 2016 at 3:27 PM, Victor Payno <vpayno@xxxxxxxxxx> wrote:
> We'll have to run the test again for the OSD log data. Forgot to make sure
> that the ceph log partition wasn't full.
>
>
> client:
> /sys/kernel/debug/ceph/e88d2684-47c1-5a64-a275-6e375d11b557.client1242818/osdc
>
> REQUESTS 1 homeless 0
> 11475   osd2    37.a819967      [2]/2   [2]/2   rbd_header.d960431b30e2f
> 0x400019        3       0'0     call
> LINGER REQUESTS
> 91      osd0    37.851f81e1     [0]/0   [0]/0   rbd_header.d94f26cf2eafd
> 0x24    0       WC/0
> 93      osd0    37.98ca7eab     [0]/0   [0]/0   rbd_header.d94b96a21ce28
> 0x24    0       WC/0
> 106     osd0    37.9720d758     [0]/0   [0]/0   rbd_header.d94f53a7da731
> 0x24    0       WC/0
> 104     osd1    37.de8088a1     [1]/1   [1]/1   rbd_header.d94f52e0f9b4d
> 0x24    0       WC/0
> 105     osd1    37.db9af301     [1]/1   [1]/1   rbd_header.d94f1ed40c97 0x24
> 0       WC/0
> 14      osd2    37.a819967      [2]/2   [2]/2   rbd_header.d960431b30e2f
> 0x24    2       WC/0
> 96      osd2    37.8fb9befc     [2]/2   [2]/2   rbd_header.d94f03028192c
> 0x24    0       WC/0
> 82      osd3    37.370c3798     [3]/3   [3]/3   rbd_header.d94da25e9605b
> 0x24    0       WC/0
> 87      osd4    37.9c510a15     [4]/4   [4]/4   rbd_header.d94f079de7a55
> 0x24    0       WC/0
> 85      osd5    37.832091ad     [5]/5   [5]/5   rbd_header.d94f22d15792a
> 0x24    0       WC/0
> 94      osd5    37.344d5f3      [5]/5   [5]/5   rbd_header.d94f6b30f4a  0x24
> 0       WC/0
> 103     osd5    37.4cb8bb74     [5]/5   [5]/5   rbd_header.d94ef2bac496b
> 0x24    0       WC/0
> 77      osd6    37.7c480437     [6]/6   [6]/6   rbd_header.d94c057a9331d
> 0x24    1       WC/0
> 88      osd7    37.58634cdc     [7]/7   [7]/7   rbd_header.d94da55fd8a34
> 0x24    1       WC/0
> 98      osd7    37.a61c68b      [7]/7   [7]/7   rbd_header.d94ce7d11bf7f
> 0x24    0       WC/0
>
>
> rbd image
> '3f370dbabff91bbb7ff23ae7a96e5cb414cac3408013cefed6d4b627b5eed9c7':
>         size 9536 MB in 2385 objects
>         order 22 (4096 kB objects)
>         block_name_prefix: rbd_data.d960431b30e2f
>         format: 2
>         features: layering, striping
>         flags:
>         stripe unit: 4096 kB
>         stripe count: 1
>
>
> osdmaptool: osdmap file '/tmp/osdmap'
>  object '3f370dbabff91bbb7ff23ae7a96e5cb414cac3408013cefed6d4b627b5eed9c7'
> -> 37.c6 -> [7]
>
>
>
>
>
>
> On Tue, Jul 26, 2016 at 11:11 AM, Ilya Dryomov <idryomov@xxxxxxxxx> wrote:
>>
>> On Tue, Jul 26, 2016 at 7:58 PM, Patrick McLean <patrickm@xxxxxxxxxx>
>> wrote:
>> > Hi Ilya,
>> >
>> > We discovered this weekend that enabling lockdep in the kernel makes the
>> > issue go away. We are working on reproducing without lockdep, and
>> > isolating
>> > the issue in the OSD logs. We should be have OSD debug logs this week.
>>
>> I'm going to need the "cat /sys/kernel/debug/ceph/*/osdc" output, the
>> osd log for the osd from that output, and the output of "echo w" and
>> "echo t" to /proc/sysrq-trigger.
>>
>> Thanks,
>>
>>                 Ilya
>
>
>
>
> --
> Victor Payno
> ビクター·ペイン
>
> Sr. Release Engineer
> シニアリリースエンジニア
>
>
>
> Gaikai, a Sony Computer Entertainment Company   ∆○×□
> ガイカイ、ソニー・コンピュータエンタテインメント傘下会社
> 65 Enterprise
> Aliso Viejo, CA 92656 USA
>
> Web: www.gaikai.com
> Email: vpayno@xxxxxxxxxx
> Phone: (949) 330-6850



-- 
Victor Payno
ビクター·ペイン

Sr. Release Engineer
シニアリリースエンジニア



Gaikai, a Sony Computer Entertainment Company   ∆○×□
ガイカイ、ソニー・コンピュータエンタテインメント傘下会社
65 Enterprise
Aliso Viejo, CA 92656 USA

Web: www.gaikai.com
Email: vpayno@xxxxxxxxxx
Phone: (949) 330-6850
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