[Bug 216368] do_IRQ: stack overflow at boot on a PowerMac G5 11,2

bugzilla-daemon at kernel.org bugzilla-daemon at kernel.org
Tue Aug 16 17:30:08 AEST 2022


https://bugzilla.kernel.org/show_bug.cgi?id=216368

Christophe Leroy (christophe.leroy at csgroup.eu) changed:

           What    |Removed                     |Added
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                 CC|                            |christophe.leroy at csgroup.eu

--- Comment #3 from Christophe Leroy (christophe.leroy at csgroup.eu) ---
That might be a consequence of commit 41f20d6db2b6 ("powerpc/irq: Increase
stack_overflow detection limit when KASAN is enabled") which increased the
limit from 2k to 4k for PPC64.

This happens when you get an IRQ while being deep into BTRFS handling it seems.

It should be investigated with BTRFS team why the callstack is so deep.

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