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authorJavi Merino <javi.merino@arm.com>2012-02-06 15:45:36 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2012-03-24 09:38:53 +0000
commitf5274c2d0d8d91076af8605187d762dfa0b92825 (patch)
tree96b4c6292a9aec6d623bf577c2e10cd16b2ea4b9 /arch/arm/mm/fault.c
parente0b823e9a543527dbb0f806252ee03a60f2aefbc (diff)
downloadop-kernel-dev-f5274c2d0d8d91076af8605187d762dfa0b92825.zip
op-kernel-dev-f5274c2d0d8d91076af8605187d762dfa0b92825.tar.gz
ARM: 7319/1: Print debug info for SIGBUS in user faults
Print debug information on user faults for SIGBUS if user_debug = 16 in the kernel command line. Reference: <1327333344-26340-1-git-send-email-javi.merino@arm.com> Signed-off-by: Javi Merino <javi.merino@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mm/fault.c')
-rw-r--r--arch/arm/mm/fault.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index bb7eac3..40c43a9 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -164,7 +164,8 @@ __do_user_fault(struct task_struct *tsk, unsigned long addr,
struct siginfo si;
#ifdef CONFIG_DEBUG_USER
- if (user_debug & UDBG_SEGV) {
+ if (((user_debug & UDBG_SEGV) && (sig == SIGSEGV)) ||
+ ((user_debug & UDBG_BUS) && (sig == SIGBUS))) {
printk(KERN_DEBUG "%s: unhandled page fault (%d) at 0x%08lx, code 0x%03x\n",
tsk->comm, sig, addr, fsr);
show_pte(tsk->mm, addr);
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