Fix NMI IPI timeouts
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b4 am [email protected]Versions newest first
- v1 Latest3 patches 1 replyIn review
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/3 | powerpc/smp: Fix NMI IPI timeoutarch/ | +3 | 1 reply | |
| 2/3 | powerpc/smp: Fix NMI IPI xmon timeoutarch/ | +29 | 0 replies | |
| 3/3 | powerpc/smp: __smp_send_nmi_ipi staticarch/ | +2 | 0 replies |
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Cover letter [PATCH 0/3] Fix NMI IPI timeouts
The first two patches fix timeouts and deadlocks using NMI IPIs. The xmon deadlock fails with a timeout so it wasn't really noticed. The infinite timeout only hits when the system is in really bad shape or the sreset handler is broken somehow (e.g., running a guest and no KVM test in the handler).
Patch 1 is a necessary fix. Patch 2 is a bigger change, we could live without it because the sender will eventually time out and break the deadlock.
Thanks,
Nick
Nicholas Piggin (3):
powerpc/smp: Fix NMI IPI timeout
powerpc/smp: Fix NMI IPI xmon timeout
powerpc/smp: __smp_send_nmi_ipi static
arch/powerpc/kernel/smp.c | 93 +++++++++++++-------------------------- 1 file changed, 30 insertions(+), 63 deletions(-)
Signature · 1 line
2.19.2