Messages in this thread Patch in this message | | | Date | Sat, 17 Sep 2005 01:17:15 +0900 (JST) | Subject | Re: [PATCH] more sigkill priority fix | From | Atsushi Nemoto <> |
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Adding Kirill Korotaev and Heiko Carstens to CC.
>>>>> On Thu, 08 Sep 2005 01:24:50 +0900 (JST), Atsushi Nemoto <anemo@mba.ocn.ne.jp> said:
anemo> On Linux/MIPS, a simple test program can create unkillable anemo> process. The "sigkill priority fix" was introduced in 2.6.12, anemo> but it does not effective for signals sent by force_sig() in anemo> kernel. For detailed behavior and testcase, please look at anemo> this thread in linux-mips ML:
This is fixed by another way in 2.6.14-rc1 for i386 (Thanks, Roland). The changelog line is:
> [PATCH] i386: Don't miss pending signals returning to user mode after signal processing > Signed-off-by: Roland McGrath <roland@redhat.com>
And now similar fix for mips is already in Linux/MIPS CVS tree too.
--- linux-mips/arch/mips/kernel/entry.S 2005-03-04 22:17:29.000000000 +0900 +++ linux/arch/mips/kernel/entry.S 2005-09-16 01:04:52.365022536 +0900 @@ -105,7 +105,7 @@ move a0, sp li a1, 0 jal do_notify_resume # a2 already loaded - j restore_all + j resume_userspace FEXPORT(syscall_exit_work_partial) SAVE_STATIC
I suppose the original problem on s390 (reported by Heiko Carstens) could be fixed same way. Then 'sigkill priority fix' would be reverted safely.
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