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| author | Mårten Lindahl <[email protected]> | 2023-08-08 08:37:32 +0000 |
|---|---|---|
| committer | Russell King (Oracle) <[email protected]> | 2023-08-14 11:16:59 +0000 |
| commit | 8922ba71c969d2a0c01a94372a71477d879470de (patch) | |
| tree | 5bec4d8b22dfb977657a12278efc9120cedb991f /tools/perf/scripts/python/sctop.py | |
| parent | ARM: 9316/1: hw_breakpoint: fix single-stepping when using bpf_overflow_handler (diff) | |
| download | kernel-8922ba71c969d2a0c01a94372a71477d879470de.tar.gz kernel-8922ba71c969d2a0c01a94372a71477d879470de.zip | |
ARM: 9317/1: kexec: Make smp stop calls asynchronous
If a panic is triggered by a hrtimer interrupt all online cpus will be
notified and set offline. But as highlighted by commit 19dbdcb8039c
("smp: Warn on function calls from softirq context") this call should
not be made synchronous with disabled interrupts:
softdog: Initiating panic
Kernel panic - not syncing: Software Watchdog Timer expired
WARNING: CPU: 1 PID: 0 at kernel/smp.c:753 smp_call_function_many_cond
unwind_backtrace:
show_stack
dump_stack_lvl
__warn
warn_slowpath_fmt
smp_call_function_many_cond
smp_call_function
crash_smp_send_stop.part.0
machine_crash_shutdown
__crash_kexec
panic
softdog_fire
__hrtimer_run_queues
hrtimer_interrupt
Make the smp call for machine_crash_nonpanic_core() asynchronous.
Signed-off-by: Mårten Lindahl <[email protected]>
Signed-off-by: Russell King (Oracle) <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/sctop.py')
0 files changed, 0 insertions, 0 deletions