From: Eli Cohen <eli-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
To: Sean Hefty <sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: Linux RDMA list
<linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
ewg <ewg-ZwoEplunGu1OwGhvXhtEPSCwEArCW2h5@public.gmane.org>,
general-list
<general-ZwoEplunGu1OwGhvXhtEPSCwEArCW2h5@public.gmane.org>
Subject: Possible process deadlock in RMPP flow
Date: Wed, 23 Sep 2009 18:04:54 +0300 [thread overview]
Message-ID: <20090923150454.GA26150@mtls03> (raw)
Hi Sean,
one of our customers experiences problems when running ibnetdiscover.
The problem happens from time to time.
Here is the call stack the he gets:
ibnetdiscover D ffffffff80149b8d 0 26968 26544
(L-TLB)
ffff8102c900bd88 0000000000000046 ffff81037e8e0000 ffff81037e8e02e8
ffff8102c900bd78 000000000000000a ffff8102c5b50820 ffff81038a929820
0000011837bf6105 0000000000000ede ffff8102c5b50a08 0000000100000000
Call Trace:
[<ffffffff80064207>] wait_for_completion+0x79/0xa2
[<ffffffff8008b4cc>] default_wake_function+0x0/0xe
[<ffffffff882271d9>] :ib_mad:ib_cancel_rmpp_recvs+0x87/0xde
[<ffffffff88224485>] :ib_mad:ib_unregister_mad_agent+0x30d/0x424
[<ffffffff883983e9>] :ib_umad:ib_umad_close+0x9d/0xd6
[<ffffffff80012e22>] __fput+0xae/0x198
[<ffffffff80023de6>] filp_close+0x5c/0x64
[<ffffffff800393df>] put_files_struct+0x63/0xae
[<ffffffff80015b26>] do_exit+0x31c/0x911
[<ffffffff8004971a>] cpuset_exit+0x0/0x6c
[<ffffffff8005e116>] system_call+0x7e/0x83
>From the dump it seems that the process is waits on the call to
flush_workqueue() in ib_cancel_rmpp_recvs(). The package they use is
OFED 1.4.2.
Do you have any idea or suggestions how to sort this out?
Thanks.
next reply other threads:[~2009-09-23 15:04 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-23 15:04 Eli Cohen [this message]
2009-09-23 16:08 ` Possible process deadlock in RMPP flow Sean Hefty
[not found] ` <7A32EEE20DF5432CADB60B8F8B1E0093-Zpru7NauK7drdx17CPfAsdBPR1lH4CV8@public.gmane.org>
2009-09-23 16:20 ` Hal Rosenstock
2009-09-23 17:25 ` Eli Cohen
2009-09-24 6:38 ` Or Gerlitz
[not found] ` <4ABB13F3.1060702-hKgKHo2Ms0FWk0Htik3J/w@public.gmane.org>
2009-09-24 7:36 ` Eli Cohen
2009-09-24 15:53 ` Sean Hefty
[not found] ` <53F5ED0C557B4667B22A27A0459B800B-Zpru7NauK7drdx17CPfAsdBPR1lH4CV8@public.gmane.org>
2009-09-27 8:01 ` Eli Cohen
2009-10-04 7:04 ` Or Gerlitz
[not found] ` <4AC8BE74.3050200@mellanox.co.il>
[not found] ` <4AC8BE74.3050200-VPRAkNaXOzVS1MOuV/RT9w@public.gmane.org>
2009-10-19 20:30 ` Sean Hefty
[not found] ` <BFC792E8570C48B8981C34F913243887-Zpru7NauK7drdx17CPfAsdBPR1lH4CV8@public.gmane.org>
2009-10-20 6:06 ` [ewg] " Tziporet Koren
2009-10-20 7:48 ` Eli Cohen
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