On Wed, Nov 17, 2021 at 10:26:31PM -0800, Guenter Roeck wrote:
On 11/17/21 4:16 PM, Kees Cook wrote:
On Wed, Nov 17, 2021 at 03:50:17PM -0800, Linus Torvalds wrote:
Sorry for top-posting and quoting this all, but the actual people involved with the wchan changes don't seem to be on the participant list.
Adding more folks from a private report and https://bugzilla.kernel.org/show_bug.cgi?id=215031
and for the new people, here's a lore link for this thread: https://lore.kernel.org/stable/YZV02RCRVHIa144u@fedora64.linuxtx.org/
FWIW, earlier bisection pointed to the stable backport of 5d1ceb3969b6b2e47e2df6d17790a7c5a20fcbb4 being the primary culprit. At first glance it seems to me that the problem with -stable is that an unvetted subset of the wchan refactoring series landed in -stable.
Can the (partial) wchan backport possibly be dropped from v5.15.y until someone figures out what exactly - if anything - is needed ?
Now dropped.