Am Freitag, dem 05.07.2024 um 11:06 -0400 schrieb Liam R. Howlett: > * Bert Karwatzki <spasswolf@xxxxxx> [240704 17:53]: > > I just did test the v3 patchset on top of linux-next-20240703 with > > `stress-ng --vm-segv 16`. In about 5 minutes of testing no errors occured. > > This seems to be a good sign especially since testing the v2 patchset yielded > > more than a million errors in 30 seconds. > > > > Thanks. I am still concerned about the group task exit issue you saw in > v2 and how count could be out of sync with the mm struct map count. I > wonder if it was this set or something else that was in linux-next at > the time of your testing. > > Were you closing a window in firefox when that happened? Maybe I can > attempt to recreate the issue again. > > Regards, > Liam I don't think I was closing a window when the issue happened, but right before the freeze happened there was a segfault in a firefox process: [ T8516] show_signal_msg: 16 callbacks suppressed [ T8516] Isolated Web Co[8516]: segfault at 0 ip 00007f8c1f55fbe5 sp 00007ffcc2b97660 error 6 in libxul.so[4f98be5,7f8c1a686000+5f96000] likely on CPU 14 (core 7, socket 0) [ T8516] Code: 48 8d 0d 63 a3 3c 01 48 89 08 c7 04 25 00 00 00 00 00 00 00 00 0f 0b 48 8b 05 47 1a e2 03 48 8d 0d 38 99 30 01 48 89 08 31 c0 <89> 04 25 00 00 00 00 0f 0b e8 7d 7a 12 fb 66 2e 0f 1f 84 00 00 00 [ T8521] ------------[ cut here ]------------ [ T8521] kernel BUG at mm/mmap.c:3521! so perhaps exit_group was called by a signal handler Bert Karwatzki
