path: root/arch/powerpc
diff options
authorLinas Vepstas <linas@austin.ibm.com>2007-11-20 12:28:15 +1100
committerPaul Mackerras <paulus@samba.org>2007-11-20 16:10:09 +1100
commita2b51812a4dc5db09ab4d4638d4d8ed456e2457e (patch)
treec61eeb12f3c3164208468cf8837711f843a32792 /arch/powerpc
parent[POWERPC] vdso: Fixes for cache block sizes (diff)
[POWERPC] Fix RTAS os-term usage on kernel panic
The rtas_os_term() routine was being called at the wrong time. The actual rtas call "os-term" will not ever return, and so calling it from the panic notifier is too early. Instead, call it from the machine_reset() call. This splits the rtas_os_term() routine into two: one part to capture the kernel panic message, invoked during the panic notifier, and another part that is invoked during machine_reset(). Prior to this patch, the os-term call was never being made, because panic_timeout was always non-zero. Calling os-term helps keep the hypervisor happy! We have to keep the hypervisor happy to avoid service, dump and error reporting problems. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc')
2 files changed, 8 insertions, 7 deletions
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index 52e95c2158c0..053cac19f714 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -638,18 +638,18 @@ void rtas_halt(void)
/* Must be in the RMO region, so we place it here */
static char rtas_os_term_buf[2048];
-void rtas_os_term(char *str)
+void rtas_panic_msg(char *str)
- int status;
+ snprintf(rtas_os_term_buf, 2048, "OS panic: %s", str);
- if (panic_timeout)
- return;
+void rtas_os_term(void)
+ int status;
if (RTAS_UNKNOWN_SERVICE == rtas_token("ibm,os-term"))
- snprintf(rtas_os_term_buf, 2048, "OS panic: %s", str);
do {
status = rtas_call(rtas_token("ibm,os-term"), 1, 1, NULL,
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index fdb9b1c8f977..fdeefe54ea91 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -507,7 +507,8 @@ define_machine(pseries) {
.restart = rtas_restart,
.power_off = pSeries_power_off,
.halt = rtas_halt,
- .panic = rtas_os_term,
+ .panic = rtas_panic_msg,
+ .machine_shutdown = rtas_os_term,
.get_boot_time = rtas_get_boot_time,
.get_rtc_time = rtas_get_rtc_time,
.set_rtc_time = rtas_set_rtc_time,