[Note: this mail is primarily send for documentation purposes and/or for regzbot, my Linux kernel regression tracking bot. That's why I removed most or all folks from the list of recipients, but left any that looked like a mailing lists. These mails usually contain '#forregzbot' in the subject, to make them easy to spot and filter out.] On 09.11.22 11:23, Thorsten Leemhuis wrote: > On 31.07.22 07:03, Kyle Huey wrote: >> From: Kyle Huey <me@xxxxxxxxxxxx> >> >> When management of the PKRU register was moved away from XSTATE, emulation >> of PKRU's existence in XSTATE was added for APIs that read XSTATE, but not >> for APIs that write XSTATE. This can be seen by running gdb and executing >> `p $pkru`, `set $pkru = 42`, and `p $pkru`. On affected kernels (5.14+) the >> write to the PKRU register (which gdb performs through ptrace) is ignored. > > Seem I missed this one, but apparently it needs tracking. > > #regzbot ^introduced e84ba47e313dbc > #regzbot title x86/fpu: emulation of PKRU's existence in XSTATE missing > for APIs that write XSTATE > #regzbot ignore-activity > #regzbot monitor > https://lore.kernel.org/all/20221107063807.81774-1-khuey@xxxxxxxxxxxx/ #regzbot fixed-by: 4a804c4f83
