UML - Dump core on panic
PATCH 3/4 UML - Dump core on panic
Dump core after a panic. This will provide better debugging information than is currently available.
Signed-off-by Jeff Dike <[email protected]>
--
arch/um/include/os.h | 1 + arch/um/kernel/um_arch.c | 2 +- arch/um/os-Linux/util.c | 6 ++++++ 3 files changed, 8 insertions(+), 1 deletion(-)
arch/um/include/os.h +1 -0
@@ -281,6 +281,7 @@ extern void setup_machinename(char *machextern void setup_hostinfo (char *buf,int len);extern int setjmp_wrapper (void (*proc)(void *,void *), ...);extern void os_log_info (char *fmt,va_list ap); +extern void os_dump_core (void );/* time.c */ #define BILLION (1000 * 1000 * 1000)
arch/um/kernel/um_arch.c +1 -1
@@ -474,7 +474,7 @@ static int panic_exit(struct notifier_blshow_regs (&(current->thread.regs));bust_spinlocks (0 ); uml_exitcode =1 ; -machine_halt (); +os_dump_core ();return 0 ; }
arch/um/os-Linux/util.c +6 -0
@@ -148,3 +148,9 @@ void os_log_info(char *fmt, va_list ap)vsnprintf (&logging_buf[len],sizeof (logging_buf) - len, fmt, ap);write (logging_fd, logging_buf,strlen (logging_buf)); } + +void os_dump_core (void ) +{ +signal (SIGSEGV ,SIG_DFL ); +abort (); +}
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