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stop_machine: Add function and caller debug info

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Crashes in stop-machine are hard to connect to the calling code, add a
little something to help with that.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
Reviewed-by: Daniel Bristot de Oliveira <bristot@redhat.com>
Link: https://lkml.kernel.org/r/20201023102346.116513635@infradead.org
This commit is contained in:
Peter Zijlstra
2020-09-21 12:58:17 +02:00
parent 23859ae444
commit a8b62fd085
4 changed files with 32 additions and 3 deletions
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2
lib/dump_stack.c
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@@ -12,6 +12,7 @@
#include <linux/atomic.h>
#include <linux/kexec.h>
#include <linux/utsname.h>
#include <linux/stop_machine.h>
static char dump_stack_arch_desc_str[128];
@@ -57,6 +58,7 @@ void dump_stack_print_info(const char *log_lvl)
log_lvl, dump_stack_arch_desc_str);
print_worker_info(log_lvl, current);
print_stop_info(log_lvl, current);
}
/**