diff options
| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2009-01-27 18:20:00 -0500 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-01-28 05:19:53 -0500 |
| commit | ecbab71c521819716e204659dfe72fc39d00630a (patch) | |
| tree | 82b8913f99c4a019ac9f2e0271f323b28f6bcca4 /arch/arm/kernel/entry-armv.S | |
| parent | 9ce8bb55e32d11bb82e19e76bdd2cf1c2ed32fd1 (diff) | |
[ARM] call undefined instruction exception handler with irqs enabled
Aaro says:
> With spinlock debugs enabled I get might_sleep() warnings when using
> ptrace.
tracked down to a missing enable_irq before calling do_undefinstr().
Reported-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Tested-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/kernel/entry-armv.S')
| -rw-r--r-- | arch/arm/kernel/entry-armv.S | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S index 77b047475539..85040cfeb5e5 100644 --- a/arch/arm/kernel/entry-armv.S +++ b/arch/arm/kernel/entry-armv.S | |||
| @@ -650,6 +650,7 @@ ENTRY(fp_enter) | |||
| 650 | no_fp: mov pc, lr | 650 | no_fp: mov pc, lr |
| 651 | 651 | ||
| 652 | __und_usr_unknown: | 652 | __und_usr_unknown: |
| 653 | enable_irq | ||
| 653 | mov r0, sp | 654 | mov r0, sp |
| 654 | adr lr, ret_from_exception | 655 | adr lr, ret_from_exception |
| 655 | b do_undefinstr | 656 | b do_undefinstr |