Messages in this thread | | | Date | Fri, 29 Apr 2005 16:29:47 +0200 | From | Andi Kleen <> | Subject | Re: 2.6.11.7 kernel panic on boot on AMD64 |
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On Thu, Apr 28, 2005 at 09:47:21AM -0700, Randy.Dunlap wrote: > On Fri, 29 Apr 2005 00:38:24 +0800 > Coywolf Qi Hunt <coywolf@gmail.com> wrote: > > > On 4/28/05, Randy.Dunlap <rddunlap@osdl.org> wrote: > > > On Thu, 28 Apr 2005 11:05:40 +0200 > > > Ruben Puettmann <ruben@puettmann.net> wrote: > > > > > > > On Wed, Apr 27, 2005 at 03:27:04PM -0700, Randy.Dunlap wrote: > > > > Looks like this code in init/main.c: > > > > > > > > > > if (late_time_init) > > > > > late_time_init(); > > > > > > > > > > sees a garbage value in late_time_init (garbage being > > > > > %eax == 0x00307974.743d656c, which is "le=tty0\n", > > > > > as in "console=tty0"). > > > > > > > > > > How long is your kernel boot/command line? > > > > > Please post it. > > > > > > > > It was boot over pxe here is the append line from the > > > > pxelinux.cfg/default > > > > > > > > APPEND vga=normal rw load_ramdisk=0 root=/dev/nfs nfsroot=192.168.112.1:/store/rescue/sarge-amd64,rsize=8192,wsize=8192,timo=12,retrans=3,mountvers=3,nfsvers=3 > > > > > > Hm, no "console=tty...." at all. That didn't help (me) much. > > > > Could that boot loader pxe append console=tty implicitly? > > It could... I don't know anything about pxe boot. > > > > >From the vmlinux Ruben gave me, > > ffffffff807980d8 A __bss_start > > ffffffff807980d8 A _edata > > ffffffff80798100 B boot_cpu_stack > > ffffffff8079c100 B boot_exception_stacks > > ffffffff807a1100 B system_state > > ffffffff807a1120 B saved_command_line > > ffffffff807a1220 B late_time_init > > ffffffff807a1228 b execute_command > > ffffffff807a1230 b panic_later > > ffffffff807a1238 b panic_param > > ... > > > > It seems possible to luckily skip the garbage. Comment out the two > > lines and see if it works. > > > > /* if (late_time_init) > > late_time_init(); */ > > Yes, that would help verify that the command line is the problem. > I also recall Andi having a few problems with large command lines > on x86-64... so it still smells like that to me. (ak added to cc:)
late_time_init is not in my tree. Someone else must have submitted it. iirc it was a workaround for some race in the NMI watchdog setup, but that has since then be properly fixed.
I would recommend to just drop the patch.
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