Re: Panic on suspend
From: John Baldwin (jhb_at_FreeBSD.org)
Date: 03/01/05
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To: freebsd-acpi@FreeBSD.org, filippo.forti@fastwebnet.it Date: Tue, 1 Mar 2005 17:03:50 -0500
On Tuesday 01 March 2005 03:30 pm, Filippo Forti wrote:
> Hi,
> I got a fully reproduceable panic while trying to suspend (to S3) on my
> laptop. FreeBSD is -CURRENT from Monday.
>
> I'm using a modified DSDT which used to work before I updated on Monday.
> dmesg from after reboot is attacched.
>
> Here comes gbd output
>
>
> Fatal trap 12: page fault while in vm86 mode
> fault virtual address = 0x2000
> fault code = user write, page not present
> instruction pointer = 0xc000:0x5195
> stack pointer = 0x0:0xfe4
> frame pointer = 0x0:0x0
> code segment = base 0x600005, limit 0x2, type 0x11
> = DPL 1, pres 0, def32 0, gran 0
> processor eflag = interrupt enabled, resume, mv86, IOPL = 0
> current process = 1046 (acpiconf)
> [thread pid 1046 tid 100084]
> Stopped at 0x5159: *** error reading from address 5159 ***
>
> db> tr
> Tracing pid 1046 tid 100084 td 0xc27645c0
> (null)(ff000e2c3,f000ff53,f000ff54,f00092da) at 0x5195
> _end(ccce4fab,b638f354,3a6c5da3,ec956de5,fe6dff6c) at 0xf000ff53
>
> db> where
> Tracing pid 1046 tid 100084 td 0xc27645c0
> kdb_enter(c08d00f2,c08e69ce,c08cbfd1,c08ee7f9,2b8) at kdb_enter+0x31
> witness_checkorder(c2cc2a54,9,c08ee7f9,2b8,0) at witness_checkorder+0xc9
> _mtx_lock_flags(c2cc2a54,0,c08ee7f9,2b8,0) at _mtx_lock_flags+0x85
> trap_pfault(c0c21fa8,0,2000,c0c21fa8,2000) at trap_pfault+0xa1
> trap (0,0,0,1000,0) at trap+0x34b
> calltrap() at calltrap+0x5
> ---trap 0xc, eip = 0x5195, esp = 0xc0c21fe8, ebp = 0 ---
>
> db> next
> panic: blockable sleep lock (sleep mutex) process lock @
> /usr/src/sys/i386/i386/trap.c:696
> KDB: enter: panic
> After 2 instructions (0 loads, 0 stores),
> [thread 1046 tid 1000084]
> stopped at kdb_enter+0x31: ret
>
> Thanks for your help
> Filippo
Can you try this patch to get rid of the bogus witness warning:
Index: trap.c
===================================================================
RCS file: /usr/cvs/src/sys/i386/i386/trap.c,v
retrieving revision 1.270
diff -u -r1.270 trap.c
--- trap.c 16 Nov 2004 20:42:31 -0000 1.270
+++ trap.c 18 Feb 2005 15:31:37 -0000
@@ -238,7 +238,7 @@
* to the debugger.
*/
eva = rcr2();
- if (td->td_critnest == 0)
+ if (td->td_critnest == 0 && td->td_sleeplocks == NULL)
enable_intr();
else
trap_fatal(&frame, eva);
-- John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org"
- Previous message: Kevin Oberman: "Re: patch: p4tcc and speedstep cpufreq drivers"
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