Messages in this thread | | | Date | Thu, 18 Jul 2002 21:32:08 +0100 | From | Matthew Wilcox <> | Subject | Re: 2.5.26 broken on headless boxes |
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On Thu, Jul 18, 2002 at 01:18:57PM -0700, William Lee Irwin III wrote: > On Thu, Jul 18, 2002 at 02:29:46PM +0100, Matthew Wilcox wrote: > >>>EIP; c01b7695 <visual_init+85/e0> <===== > >>>edx; f7906600 <END_OF_CODE+37502e5c/????> > >>>edi; c03dcc00 <vc_cons+0/fc> > >>>esp; c3d45e7c <END_OF_CODE+39426d8/????> > > Trace; c01b7773 <vc_allocate+83/140> > > Trace; c01baa25 <con_open+19/88> > > Trace; c01ac08c <tty_open+20c/394> > > Trace; c0145a83 <link_path_walk+683/874> > > Trace; c0144ed7 <permission+27/2c> > > Trace; c0146373 <may_open+5f/2ac> > > Trace; c013c33a <chrdev_open+66/98> > > Trace; c013b001 <dentry_open+e1/1b0> > > Trace; c013af16 <filp_open+52/5c> > > Trace; c013b307 <sys_open+37/74> > > Trace; c0108893 <syscall_call+7/b> > > This is the 4th one of these I've seen in the last two days. Any chance > of being able to compile with -g and get an addr2line on the EIP? I've > tried to reproduce it myself, but haven't gotten it to happen yet.
seems fairly obvious what's happening with a couple of printks...
printk("visual_init: sw = %p, conswitchp = %p, currcons = %d, init = %d\n", sw, conswitchp, currcons, init);
gets me the interesting fact that sw & conswitchp are both NULL. later on, we call: sw->con_init(vc_cons[currcons].d, init); which seems like it would be the exact cause, no?
now whether putting a:
if (!sw) return;
call into visual_init or whether we should determine earlier never to call visual_init, I don't know. The people who know about the console have been conspicuously silent so far...
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