On Sat, 16 May 2020 18:05:07 +0530, Subhashini Rao Beerisetty said: > In the first attempt when I run that test case I landed into âgeneral > protection fault: 0000 [#1] SMP" .. Next I rebooted and ran the same > test , but now it resulted the âOops: 0002 [#1] SMP".
And the 0002 is telling you that there's been 2 previous bug/oops since the reboot, so you need to go back through your dmesg and find the *first* one. > In both cases the call trace looks exactly same and RIP points to > ânative_queued_spin_lock_slowpath+0xfe/0x170".. The first few entries in the call trace are the oops handler itself. So... > May 16 12:06:17 test-pc kernel: [96934.567347] Call Trace: > May 16 12:06:17 test-pc kernel: [96934.569475] > [<ffffffff8183c427>]__raw_spin_lock_irqsave+0x37/0x40 > May 16 12:06:17 test-pc kernel: [96934.571686] [<ffffffffc0606812>] > event_raise+0x22/0x60 [osa] > May 16 12:06:17 test-pc kernel: [96934.573935] [<ffffffffc06aa2a4>] > multi_q_completed_one_buffer+0x34/0x40 [mcore] The above line is the one where you hit the wall. > May 16 12:59:22 test-pc kernel: [ 3011.405602] Call Trace: > May 16 12:59:22 test-pc kernel: [ 3011.407892] [<ffffffff8183c427>] > _raw_spin_lock_irqsave+0x37/0x40 > May 16 12:59:22 test-pc kernel: [ 3011.410256] [<ffffffffc0604812>] > event_raise+0x22/0x60 [osa] > May 16 12:59:22 test-pc kernel: [ 3011.412652] [<ffffffffc06b72a4>] > multi_q_completed_one_buffer+0x34/0x40 [mcore] And again. However, given that it's a 4.4 kernel from 4 years ago, it's going to be hard to find anybody who really cares. In fact. I'm wondering if this is from some out-of-tree or vendor patch, because I'm not finding any sign of that function in either the 5.7 or 4.4 tree. Not even a sign of ## catenation abuse - no relevant hits for "completed_one_buffer" or "multi_q" either I don't think anybody's going to be able to help unless somebody first identifies where that function is....
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