Re: Attempting to sleep in interrupts

Le Monday 7 November 2005 10:46, Peter Jeremy a écrit :
>
> Tonight's problem was in -CURRENT from last Saturday night.  A
> backtrace is below.  No crashdump (unfortunately) because the kernel
> got into a loop of breakpoint instruction faults.  That said, the
> fault is fairly clearly the API bug that's mentioned in the above
> reference.

<AOL>me too</AOL>
I also see this kind of panic :

fwohci0: fwohci_pci_suspend
panic: trying to sleep while sleeping is prohibited
cpuid = 0
KDB: enter: panic
[thread pid 29 tid 100036 ]
Stopped at      kdb_enter+0x2b: nop
db> trace
Tracing pid 29 tid 100036 td 0xc1f67d80
kdb_enter(c08709d0) at kdb_enter+0x2b
panic(c08739d1,2,c1f67d80,3e,cb70da24) at panic+0x127
sleepq_add(c1e1d000,0,c085ca65,0) at sleepq_add+0x8c
msleep(c1e1d000,0,54,c085ca65,190) at msleep+0x249
cbb_cardbus_reset(c1e53380,c1e53380,0,c1e53380,cb70da90) at 
cbb_cardbus_reset+0xf6
cbb_cardbus_power_disable_socket(c1e53380,c1f48680) at 
cbb_cardbus_power_disable_socket+0x15
cbb_power_disable_socket(c1e53380,c1f48680) at cbb_power_disable_socket+0x33
pccard_detach_card(c1f48680,cb70dad4,c065c52e,c1f48680,c1e56480) at 
pccard_detach_card+0xb4
pccard_suspend(c1f48680) at pccard_suspend+0xb
bus_generic_suspend(c1e53380,c1e53380,c1f48700,c1e56480,c1e53380) at 
bus_generic_suspend+0x4a
cbb_suspend(c1e53380) at cbb_suspend+0x59
bus_generic_suspend(c1e4c300,c08d23e8,c08d23e8,c1e4c300,c1dd2300) at 
bus_generic_suspend+0x4a
pci_suspend(c1e4c300) at pci_suspend+0x7a
bus_generic_suspend(c1dd2100) at bus_generic_suspend+0x4a
bus_generic_suspend(c1dd2300,c093b540,1,c0b1d341,260) at 
bus_generic_suspend+0x4a
acpi_suspend(c1dd2300) at acpi_suspend+0x28
bus_generic_suspend(c1dd2d00) at bus_generic_suspend+0x4a
bus_generic_suspend(c1d6f000,3,1,101dc70,0) at bus_generic_suspend+0x4a
acpi_SetSleepState(c1dd2080,3,0,cb70dc38,c0660a63) at acpi_SetSleepState+0x16a
acpi_pm_func(0,c1dd2080,1,cb70dc80,c07e8d47) at acpi_pm_func+0x3a
power_pm_suspend(1) at power_pm_suspend+0x23
scgetc(c1f88800,2,c0669865,c1e7a900,c0997fa0) at scgetc+0x4ef
sckbdevent(c0997fa0,0,c1f88800) at sckbdevent+0x1c8
atkbd_intr(c0997fa0,0,cb70dcec,c0632c9a,c0997fa0) at atkbd_intr+0x20
atkbdintr(c0997fa0) at atkbdintr+0x16
ithread_execute_handlers(c1f66224,c1d54600) at ithread_execute_handlers+0xe6
ithread_loop(c1f6e1b0,cb70dd38,c1f6e1b0,c0632d64,0) at ithread_loop+0x67
fork_exit(c0632d64,c1f6e1b0,cb70dd38) at fork_exit+0xa4
fork_trampoline() at fork_trampoline+0x8
--- trap 0x1, eip = 0, esp = 0xcb70dd6c, ebp = 0 ---

kgdb dump : (extract)
#9  0xc06458c3 in panic (fmt=0xc08739d1 "trying to sleep while sleeping is 
prohibited")    at /usr/src/sys/kern/kern_shutdown.c:539
#10 0xc0664a54 in sleepq_add (wchan=0xc1e1d000, lock=0x0,
    wmesg=0x12 <Address 0x12 out of bounds>, flags=0)
    at /usr/src/sys/kern/subr_sleepqueue.c:273
#11 0xc064b899 in msleep (ident=0xc1e1d000, mtx=0x0, priority=84, 
wmesg=0xc085ca65 "cbbP3", timo=400) at /usr/src/sys/kern/kern_synch.c:205
#12 0xc0585166 in cbb_cardbus_reset (brdev=0xc1e53380) 
at /usr/src/sys/dev/pccbb/pccbb.c:960
#13 0xc05852d5 in cbb_cardbus_power_disable_socket (brdev=0xc1e53380, 
child=0xc1f48680)    at /usr/src/sys/dev/pccbb/pccbb.c:990
#14 0xc0585eeb in cbb_power_disable_socket (brdev=0xc1e53380, 
child=0xc1f48680) at /usr/src/sys/dev/pccbb/pccbb.c:1319
#15 0xc057e7a8 in pccard_detach_card (dev=0xc1f48680) at power_if.h:37
#16 0xc057f553 in pccard_suspend (self=0xc1f48680) 
at /usr/src/sys/dev/pccard/pccard.c:795
#17 0xc065c52e in bus_generic_suspend (dev=0xc1e53380) at device_if.h:272
#18 0xc0586575 in cbb_suspend (self=0xc1e53380) 
at /usr/src/sys/dev/pccbb/pccbb.c:1578
#19 0xc065c52e in bus_generic_suspend (dev=0xc1e4c300) at device_if.h:272
#20 0xc058ab2e in pci_suspend (dev=0xc1e4c300) 
at /usr/src/sys/dev/pci/pci.c:1130
#21 0xc065c52e in bus_generic_suspend (dev=0xc1dd2100) at device_if.h:272
#22 0xc065c52e in bus_generic_suspend (dev=0xc1dd2300) at device_if.h:272

idents :
src/sys/kern/subr_sleepqueue.c,v 1.20 2005/10/31 15:41:25 rwatson Exp $
src/sys/kern/kern_synch.c,v 1.270 2005/05/23 23:01:52 ups Exp $
src/sys/dev/pccbb/pccbb.c,v 1.134 2005/10/29 03:36:00 imp Exp $
src/sys/dev/pccard/pccard.c,v 1.113 2005/09/22 14:51:11 imp Exp $
src/sys/dev/pci/pci.c,v 1.303 2005/10/29 05:52:17 imp Exp $