Messages in this thread | | | Date | Mon, 29 Aug 2022 09:24:55 +0530 | From | Ravi Bangoria <> | Subject | Re: [RFC v2] perf: Rewrite core context handling |
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On 23-Aug-22 9:50 AM, Ravi Bangoria wrote: > >> With this, I can run 'perf test' and perf_event_tests without any error in >> dmesg. I'll run perf fuzzer over night and see if it reports any issue. > > I hit kernel crash with fuzzer. I'm yet to debug it. Here is the trace: > > BUG: kernel NULL pointer dereference, address: 0000000000000198 > #PF: supervisor read access in kernel mode > #PF: error_code(0x0000) - not-present page > PGD 0 P4D 0 > Oops: 0000 [#1] PREEMPT SMP NOPTI > CPU: 48 PID: 0 Comm: swapper/48 Not tainted 6.0.0-rc1-perf-event-context-peter-queue+ #153 > Hardware name: Dell Inc. PowerEdge R6515/07PXPY, BIOS 2.7.3 03/31/2022 > RIP: 0010:x86_pmu_enable_event+0x3c/0x120
I was able to reproduce this with vanilla v6.0-rc2 kernel.
Thanks, Ravi
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