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authorEric Andersen <andersen@codepoet.org>2003-04-24 11:41:28 +0000
committerEric Andersen <andersen@codepoet.org>2003-04-24 11:41:28 +0000
commit2c1de61023d384fd0a365405925940c3528cb75a (patch)
tree5839e97767864319de033cec3448767e0e43d016 /libbb/my_getpwnamegid.c
parentafc01cd48544d4e0e7575a8518e575dd499e297c (diff)
downloadbusybox-2c1de61023d384fd0a365405925940c3528cb75a.tar.gz
There have been many reports of init failing to reboot and/or failing to halt
over the years. Well I finally took the time to track this down. It turns out that inside linux/kernel/sys.c the kernel will call machine_halt(); do_exit(0); when halting, or will call machine_power_off(); do_exit(0); during a reboot. Unlike sysv init, we call reboot from within the init process, so if the call to machine_halt() or machine_power_off() returns, the call to do_exit(0) will cause the kernel to panic. Which is a very bad thing to happen. So I just added this little patch to fork and call the reboot syscall from within the forked child process, thereby neatly avoiding the problem. But IMHO, both calls to do_exit(0) within linux/kernel/sys.c are bugs and should be fixed. -Erik
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