Messages in this thread | | | From | Thomas Graziadei <> | Subject | RE: [PATCH] powerpc: Fix lazy preemption for powerpc 32bit | Date | Thu, 19 Mar 2020 14:45:09 +0000 |
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> From: Sebastian Andrzej Siewior [mailto:bigeasy@linutronix.de] > On 2020-03-18 21:26:40 [+0100], Thomas Graziadei wrote: >> From: Thomas Graziadei <thomas.graziadei@omicronenergy.com> >> >> The 32bit powerpc assembler implementation of the lazy preemption set >> the _TIF_PERSYSCALL_MASK on the low word. This could lead to modprobe >> segfaults and a kernel panic - not syncing: Attempt to kill init! >> issue. >> >> Fixed by shifting the mask by 16 bit using andis and lis. > > bah. Thank you for catching this. > Still e500 based powerpc I assume?
Well thanks for the great work and yes still e500 powerpc based.
> >> Signed-off-by: Thomas Graziadei <thomas.graziadei@omicronenergy.com> > > Sebastian
Thomas
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