Re: kern/44187: The kernel hangs when entering the debugger

[Jari Kuittinen <jkuittinen293482%gmail.com@localhost>]

The following reply was made to PR kern/44187; it has been noted by GNATS.

From: Jari Kuittinen <jkuittinen293482%gmail.com@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: kern/44187: The kernel hangs when entering the debugger
Date: Fri, 3 Dec 2010 22:00:50 +0200

 On Fri,  3 Dec 2010 08:05:04 +0000 (UTC)
 David Holland <dholland-bugs%netbsd.org@localhost> wrote:
 
 >  
 >  Have you tried this with LOCKDEBUG turned on?
 >  
 >  -- 
 >  David A. Holland
 >  dholland%netbsd.org@localhost
 >  
 
 Yes, now I have.
 
 fatal breakpoint trap in supervisor mode
 trap type 1 code 0 eip c0231ee4 cs 8 eflags 202 cr2 bb71601c ilevel 8
 panic: i82489_icr_wait: busy
 
 (gdb) bt
 #0  cpu_reboot (howto=260, bootstr=0x0) at 
../../../../arch/i386/i386/machdep.c:859
 #1  0xc0650c51 in panic (fmt=0xc0a452ed "i82489_icr_wait: busy") at 
../../../../kern/subr_prf.c:302
 #2  0xc04cb494 in i82489_icr_wait () at ../../../../arch/x86/x86/lapic.c:500
 #3  0xc04cb945 in x86_ipi (vec=240, target=786432, dl=794864) at 
../../../../arch/x86/x86/lapic.c:576
 #4  0xc024f72e in kdb_trap (type=1, code=0, regs=0xcac6fecc) at 
../../../../arch/i386/i386/db_interface.c:131
 #5  0xc06896e7 in trap (frame=0xcac6fecc) at 
../../../../arch/i386/i386/trap.c:392
 #6  0xc010cd26 in calltrap ()
 #7  0xc0231ee4 in breakpoint ()
 #8  0xc0227f96 in comintr (arg=0xcb3df704) at ../../../../dev/ic/com.c:1900
 #9  0xc0104837 in Xintr_ioapic_edge11 ()
 #10 0xc0231f65 in x86_stihlt ()
 Previous frame inner to this frame (corrupt stack?)
 
 --
 Jari Kuittinen