diff options
Diffstat (limited to 'features/rt/panic-skip-get_random_bytes-for-RT_FULL-in-init_oops.patch')
| -rw-r--r-- | features/rt/panic-skip-get_random_bytes-for-RT_FULL-in-init_oops.patch | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/features/rt/panic-skip-get_random_bytes-for-RT_FULL-in-init_oops.patch b/features/rt/panic-skip-get_random_bytes-for-RT_FULL-in-init_oops.patch new file mode 100644 index 00000000..b8f71482 --- /dev/null +++ b/features/rt/panic-skip-get_random_bytes-for-RT_FULL-in-init_oops.patch @@ -0,0 +1,33 @@ +From 487bb91d3835707e8324dfddf3a2a524072e62ef Mon Sep 17 00:00:00 2001 +From: Thomas Gleixner <tglx@linutronix.de> +Date: Tue, 14 Jul 2015 14:26:34 +0200 +Subject: [PATCH 147/191] panic: skip get_random_bytes for RT_FULL in + init_oops_id + +Disable on -RT. If this is invoked from irq-context we will have problems +to acquire the sleeping lock. + +Signed-off-by: Thomas Gleixner <tglx@linutronix.de> +--- + kernel/panic.c | 2 ++ + 1 file changed, 2 insertions(+) + +diff --git a/kernel/panic.c b/kernel/panic.c +index 678529917d5d..14017d1b77b0 100644 +--- a/kernel/panic.c ++++ b/kernel/panic.c +@@ -544,9 +544,11 @@ static u64 oops_id; + + static int init_oops_id(void) + { ++#ifndef CONFIG_PREEMPT_RT + if (!oops_id) + get_random_bytes(&oops_id, sizeof(oops_id)); + else ++#endif + oops_id++; + + return 0; +-- +2.19.1 + |