Re: Oops (NULL pointer) with 'perf record' of selftest 'null_syscall'

2021-06-17 Thread Athira Rajeev
> On 17-Jun-2021, at 10:05 PM, Christophe Leroy > wrote: > > > > Le 17/06/2021 à 08:36, Athira Rajeev a écrit : >>> On 16-Jun-2021, at 11:56 AM, Christophe Leroy >>> wrote: >>> >>> >>> >>> Le 16/06/2021 à 05:40, Athira Rajeev a écrit : > On 16-Jun-2021, at 8:53 AM, Madhavan Sriniva

Re: Oops (NULL pointer) with 'perf record' of selftest 'null_syscall'

2021-06-17 Thread Christophe Leroy
Le 17/06/2021 à 08:36, Athira Rajeev a écrit : On 16-Jun-2021, at 11:56 AM, Christophe Leroy wrote: Le 16/06/2021 à 05:40, Athira Rajeev a écrit : On 16-Jun-2021, at 8:53 AM, Madhavan Srinivasan wrote: On 6/15/21 8:35 PM, Christophe Leroy wrote: For your information, I'm getting th

Re: Oops (NULL pointer) with 'perf record' of selftest 'null_syscall'

2021-06-16 Thread Athira Rajeev
On 16-Jun-2021, at 11:56 AM, Christophe Leroy wrote:Le 16/06/2021 à 05:40, Athira Rajeev a écrit :On 16-Jun-2021, at 8:53 AM, Madhavan Srinivasan wrote:On 6/15/21 8:35 PM, Christophe Leroy wrote:For your information, I'm getting the following Oops. Detected with 5.13-rc6, it also oopses on 5.12 a

Re: Oops (NULL pointer) with 'perf record' of selftest 'null_syscall'

2021-06-15 Thread Christophe Leroy
Le 16/06/2021 à 08:33, Madhavan Srinivasan a écrit : On 6/16/21 11:56 AM, Christophe Leroy wrote: Le 16/06/2021 à 05:40, Athira Rajeev a écrit : On 16-Jun-2021, at 8:53 AM, Madhavan Srinivasan wrote: On 6/15/21 8:35 PM, Christophe Leroy wrote: For your information, I'm getting the f

Re: Oops (NULL pointer) with 'perf record' of selftest 'null_syscall'

2021-06-15 Thread Madhavan Srinivasan
On 6/16/21 11:56 AM, Christophe Leroy wrote: Le 16/06/2021 à 05:40, Athira Rajeev a écrit : On 16-Jun-2021, at 8:53 AM, Madhavan Srinivasan wrote: On 6/15/21 8:35 PM, Christophe Leroy wrote: For your information, I'm getting the following Oops. Detected with 5.13-rc6, it also oopses

Re: Oops (NULL pointer) with 'perf record' of selftest 'null_syscall'

2021-06-15 Thread Christophe Leroy
Le 16/06/2021 à 05:40, Athira Rajeev a écrit : On 16-Jun-2021, at 8:53 AM, Madhavan Srinivasan wrote: On 6/15/21 8:35 PM, Christophe Leroy wrote: For your information, I'm getting the following Oops. Detected with 5.13-rc6, it also oopses on 5.12 and 5.11. Runs ok on 5.10. I'm starting

Re: Oops (NULL pointer) with 'perf record' of selftest 'null_syscall'

2021-06-15 Thread Athira Rajeev
> On 16-Jun-2021, at 8:53 AM, Madhavan Srinivasan wrote: > > > On 6/15/21 8:35 PM, Christophe Leroy wrote: >> For your information, I'm getting the following Oops. Detected with >> 5.13-rc6, it also oopses on 5.12 and 5.11. >> Runs ok on 5.10. I'm starting bisecting now. > > > Thanks for r

Re: Oops (NULL pointer) with 'perf record' of selftest 'null_syscall'

2021-06-15 Thread Madhavan Srinivasan
On 6/15/21 8:35 PM, Christophe Leroy wrote: For your information, I'm getting the following Oops. Detected with 5.13-rc6, it also oopses on 5.12 and 5.11. Runs ok on 5.10. I'm starting bisecting now. Thanks for reporting, got the issue. What has happened in this case is that, pmu device is

Oops (NULL pointer) with 'perf record' of selftest 'null_syscall'

2021-06-15 Thread Christophe Leroy
For your information, I'm getting the following Oops. Detected with 5.13-rc6, it also oopses on 5.12 and 5.11. Runs ok on 5.10. I'm starting bisecting now. root@vgoippro:/tmp# perf record /root/null_syscall [ 285.559987] BUG: Kernel NULL pointer dereference on read at 0x0040 [ 285.566533]