Messages in this thread Patch in this message | | | Date | Sat, 22 Sep 2007 16:01:24 +0800 | From | lepton <> | Subject | [RFC PATCH] 2.6.22.6 user-mode linux: before abort, we make it sure all children quit |
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In a stock 2.6.22.6 kernel, poweroff a user mode linux guest (2.6.22.6 running in skas0 mode) will halt the host linux. I think the reason is the kernel thread abort because of a bug. Then the sys_reboot in process of user mode linux guest is not trapped by the user mode linux kernel and is executed by host. I think it is better to make sure all of our children process to quit when user mode linux kernel abort.
Signed-off-by: Lepton Wu <ytht.net@gmail.com>
diff -X linux-2.6.22.6/Documentation/dontdiff -pru linux-2.6.22.6/arch/um/os-Linux/util.c linux-2.6.22.6-lepton/arch/um/os-Linux/util.c --- linux-2.6.22.6/arch/um/os-Linux/util.c 2007-09-14 17:41:10.000000000 +0800 +++ linux-2.6.22.6-lepton/arch/um/os-Linux/util.c 2007-09-22 13:56:05.000000000 +0800 @@ -106,5 +106,6 @@ int setjmp_wrapper(void (*proc)(void *, void os_dump_core(void) { signal(SIGSEGV, SIG_DFL); + kill(0, SIGTERM); abort(); } - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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