| Message ID | 1353551656-23579-16-git-send-email-sanjayl@kymasys.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Wed, Nov 21, 2012 at 06:34:13PM -0800, Sanjay Lal wrote:
> This bug is discussed in: http://lkml.indiana.edu/hypermail/linux/kernel/1205.2/00719.html
Dropped, see c90e6fbb220d44988cb65af3707367c57cdb65a8 [MIPS: Fix endless
loop when processing signals for kernel tasks].
Ralf
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diff --git a/arch/mips/kernel/entry.S b/arch/mips/kernel/entry.S index a6c1332..9b00362 100644 --- a/arch/mips/kernel/entry.S +++ b/arch/mips/kernel/entry.S @@ -36,6 +36,11 @@ FEXPORT(ret_from_exception) FEXPORT(ret_from_irq) LONG_S s0, TI_REGS($28) FEXPORT(__ret_from_irq) +/* + * We can be coming here from a syscall done in the kernel space, + * e.g. a failed kernel_execve(). + */ +resume_userspace_check: LONG_L t0, PT_STATUS(sp) # returning to kernel mode? andi t0, t0, KU_USER beqz t0, resume_kernel @@ -162,7 +167,7 @@ work_notifysig: # deal with pending signals and move a0, sp li a1, 0 jal do_notify_resume # a2 already loaded - j resume_userspace + j resume_userspace_check FEXPORT(syscall_exit_partial) local_irq_disable # make sure need_resched doesn't
This bug is discussed in: http://lkml.indiana.edu/hypermail/linux/kernel/1205.2/00719.html Signed-off-by: Sanjay Lal <sanjayl@kymasys.com> --- arch/mips/kernel/entry.S | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)