Re: [BUG] sched_mm_cid_exit+0xe2: page fault on CID bitmap write with nopti on 6.19.0

[Mike Fara]

Hi Mathieu,

Thanks for the quick response. Commit 1e83ccd5921a looks correct for
our issue â?? the symptoms match exactly. The lock btr was hitting an
out-of-bounds bit number from an unvalidated TRANSIT state.

I've cherry-picked the patch onto 6.19.0 with CONFIG_SCHED_MM_CID=y
and nopti still on the cmdline. Build is running now. Will report back
with results after reboot and soak testing.

Thanks,
Mike Fara
mjfara@xxxxxxxxx