/dev/null and KSE panic 100% reproducible

From: Daniel C. Sobral <dcs_at_tcoip.com.br>
Date: Tue, 20 May 2003 09:47:51 -0300
Or so it seems. If I do a make install in 
/usr/ports/emulators/linux_base, panic happens. Alas, since my first 
panic yesterday was KSE and was during portupgrade and I have no 
linux_base presently installed, I suspect this is what caused that first 
panic.

Julian, since I now have a _reproducible_ KSE panic... what do you want 
me to do? :-)

New backtrace, for your delight and enjoyment.

GNU gdb 5.2.1 (FreeBSD)
Copyright 2002 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
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conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "i386-undermydesk-freebsd"...
panic: KSE not on run queue
panic messages:
---
panic: No strategy on dev null responsible for buffer 0xc78084f8


syncing disks, buffers remaining... 2230 2230 2230 2229 2229 2229 2229 
2229 panic: KSE not on run queue
Uptime: 50m29s
Dumping 255 MB
ata0: resetting devices ..
done
  16 32 48 64 80 96 112 128 144 160 176[CTRL-C to abort] [CTRL-C to 
abort] [CTRL-C to abort] [CTRL-C to abort] [CTRL-C to abort] [CTRL-C to 
abort]  192 208 224 240Copyright (c) 1992-2003 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
         The Regents of the University of California. All rights reserved.
FreeBSD 5.1-BETA #30: Mon May 19 21:40:33 BRT 2003
     root_at_dcs:/usr/obj/usr/src/sys/DCS
Preloaded elf kernel "/boot/kernel/kernel" at 0xc04c0000.
Preloaded elf module "/boot/kernel/snd_cmi.ko" at 0xc04c0228.
Preloaded elf module "/boot/kernel/snd_pcm.ko" at 0xc04c02d4.
Preloaded elf module "/boot/kernel/mac_biba.ko" at 0xc04c0380.
Preloaded elf module "/boot/kernel/mac_mls.ko" at 0xc04c0430.
Preloaded elf module "/boot/kernel/acpi.ko" at 0xc04c04dc.
Timecounter "i8254"  frequency 1193182 Hz
Timecounter "TSC"  frequency 1007051981 Hz
CPU: Intel(R) Celeron(TM) CPU                1000MHz (1007.05-MHz 
686-class CPU)
   Origin = "GenuineIntel"  Id = 0x6b1  Stepping = 1
 
Features=0x383f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE>
real memory  = 268353536 (255 MB)
avail memory = 255438848 (243 MB)
Security policy loaded: TrustedBSD MAC/Biba (mac_biba)
Security policy loaded: TrustedBSD MAC/MLS (mac_mls)
Pentium Pro MTRR support enabled
VESA: v3.0, 4096k memory, flags:0x1, mode table:0xc03ca722 (1000022)
VESA: NVidia
npx0: <math processor> on motherboard
npx0: INT 16 interface
acpi0: <ASUS   TUV4X   > on motherboard
pcibios: BIOS version 2.10
Using $PIR table, 9 entries at 0xc00f12d0
acpi0: power button is handled as a fixed feature programming model.
Timecounter "ACPI-fast"  frequency 3579545 Hz
acpi_timer0: <24-bit timer at 3.579545MHz> port 0xe408-0xe40b on acpi0
acpi_cpu0: <CPU> on acpi0
acpi_button0: <Power Button> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
agp0: <VIA 82C691 (Apollo Pro) host to PCI bridge> mem 
0xf8000000-0xfbffffff at device 0.0 on pci0
pcib1: <ACPI PCI-PCI bridge> at device 1.0 on pci0
pcib1: could not get PCI interrupt routing table for \\_SB_.PCI0.AGP_ - 
AE_NOT_FOUND
pci1: <ACPI PCI bus> on pcib1
pci1: <display, VGA> at device 0.0 (no driver attached)
isab0: <PCI-ISA bridge> at device 4.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <VIA 82C686B UDMA100 controller> port 0xd800-0xd80f at device 
4.1 on pci0
ata0: at 0x1f0 irq 14 on atapci0
ata1: at 0x170 irq 15 on atapci0
uhci0: <VIA 83C572 USB controller> port 0xd400-0xd41f irq 5 at device 
4.2 on pci0
usb0: <VIA 83C572 USB controller> on uhci0
usb0: USB revision 1.0
uhub0: VIA UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhub0: port error, restarting port 1
uhub0: port error, giving up port 1
ugen0: AKS eToken R2 2242, rev 1.00/1.00, addr 2
uhub0: port error, restarting port 2
uhub0: port error, giving up port 2
uhci1: <VIA 83C572 USB controller> port 0xd000-0xd01f irq 5 at device 
4.3 on pci0
usb1: <VIA 83C572 USB controller> on uhci1
usb1: USB revision 1.0
uhub1: VIA UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
uhub1: port error, restarting port 1
uhub1: port error, giving up port 1
uhub1: port error, restarting port 2
uhub1: port error, giving up port 2
pcm0: <CMedia CMI8738> port 0xb800-0xb8ff at device 5.0 on pci0
pcib0: slot 5 INTA is routed to irq 5
fxp0: <Intel 82557/8/9 EtherExpress Pro/100(B) Ethernet> port 
0xb400-0xb43f mem 0xf3000000-0xf30fffff,0xf3800000-0xf3800fff irq 10 at 
device 9.0 on pci0
fxp0: Ethernet address 00:02:b3:ae:0d:ea
miibus0: <MII bus> on fxp0
inphy0: <i82555 10/100 media interface> on miibus0
inphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
fdc0: <Enhanced floppy controller (i82077, NE72065 or clone)> port 
0x3f7,0x3f2-0x3f5 irq 6 drq 2 on acpi0
fdc0: FIFO enabled, 8 bytes threshold
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
ppc0 port 0x378-0x37f irq 7 on acpi0
ppc0: Generic chipset (EPP/NIBBLE) in COMPATIBLE mode
ppbus0: <Parallel port bus> on ppc0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
sio0 port 0x3f8-0x3ff irq 4 on acpi0
sio0: type 16550A
sio1 port 0x2f8-0x2ff irq 3 on acpi0
sio1: type 16550A
atkbdc0: <Keyboard controller (i8042)> port 0x64,0x60 irq 1 on acpi0
atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
kbd0 at atkbd0
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: model Generic PS/2 mouse, device ID 0
orm0: <Option ROMs> at iomem 0xd0000-0xd0fff,0xc0000-0xcffff on isa0
pmtimer0 on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
Timecounters tick every 1.000 msec
acpi_cpu: throttling enabled, 16 steps (100% to 6.2%), currently 100.0%
ad0: 19092MB <ST320410A> [38792/16/63] at ata0-master UDMA100
acd0: CDROM <CRD-8481B> at ata1-master PIO4
Mounting root from ufs:/dev/ad0s2a
WARNING: / was not properly dismounted
lock order reversal
  1st 0xc25fb840 pcm0 (sound softc) _at_ /usr/src/sys/dev/sound/pci/cmi.c:520
  2nd 0xc25fb440 pcm0:play:0 (pcm channel) _at_ 
/usr/src/sys/dev/sound/pcm/channel.c:440
Stack backtrace:
panic: No strategy on dev null responsible for buffer 0xc776ab90


syncing disks, buffers remaining... 2230 2230 2229 2229 2229 2228 2228 
2228 2228 2228 2228 panic: KSE not on run queue
Uptime: 26m44s
Dumping 255 MB
ata0: resetting devices ..
done
  16 32 48 64 80 96 112 128 144 160 176 192 208 224 240
---
Reading symbols from /boot/kernel/snd_cmi.ko...done.
Loaded symbols for /boot/kernel/snd_cmi.ko
Reading symbols from /boot/kernel/snd_pcm.ko...done.
Loaded symbols for /boot/kernel/snd_pcm.ko
Reading symbols from 
/usr/obj/usr/src/sys/DCS/modules/usr/src/sys/modules/mac_biba/mac_biba.ko.debug...done.
Loaded symbols for 
/usr/obj/usr/src/sys/DCS/modules/usr/src/sys/modules/mac_biba/mac_biba.ko.debug
Reading symbols from 
/usr/obj/usr/src/sys/DCS/modules/usr/src/sys/modules/mac_mls/mac_mls.ko.debug...done.
Loaded symbols for 
/usr/obj/usr/src/sys/DCS/modules/usr/src/sys/modules/mac_mls/mac_mls.ko.debug
Reading symbols from 
/usr/obj/usr/src/sys/DCS/modules/usr/src/sys/modules/acpi/acpi.ko.debug...done.
Loaded symbols for 
/usr/obj/usr/src/sys/DCS/modules/usr/src/sys/modules/acpi/acpi.ko.debug
Reading symbols from /boot/kernel/green_saver.ko...done.
Loaded symbols for /boot/kernel/green_saver.ko
Reading symbols from 
/usr/obj/usr/src/sys/DCS/modules/usr/src/sys/modules/linux/linux.ko.debug...done.
Loaded symbols for 
/usr/obj/usr/src/sys/DCS/modules/usr/src/sys/modules/linux/linux.ko.debug
#0  doadump () at /usr/src/sys/kern/kern_shutdown.c:238
238             dumping++;
(kgdb) bt full
#0  doadump () at /usr/src/sys/kern/kern_shutdown.c:238
No locals.
#1  0xc01e7353 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:370
No locals.
#2  0xc01e769b in panic () at /usr/src/sys/kern/kern_shutdown.c:543
         td = (struct thread *) 0xc0ecbab0
         bootopt = 260
         newpanic = 0
         buf = "KSE not on run queue\0ll responsible for buffer 
0xc776ab90\n", '\0' <repeats 197 times>
#3  0xc01fa832 in sched_rem (ke=0xc0ecd4c0) at 
/usr/src/sys/kern/sched_4bsd.c:639
No locals.
#4  0xc01ecfd3 in adjustrunqueue (td=0xc0ecd4c0, newpri=180) at 
/usr/src/sys/kern/kern_switch.c:295
         kg = (struct ksegrp *) 0xc0ed0b00
         ke = (struct kse *) 0xc0ecd4c0
#5  0xc01fa580 in sched_prio (td=0xc0ed24c0, prio=180 '´') at 
/usr/src/sys/kern/sched_4bsd.c:545
No locals.
#6  0xc01f9fe9 in schedcpu (arg=0x0) at /usr/src/sys/kern/sched_4bsd.c:337
         loadfac = 1944
         td = (struct thread *) 0xc0ed24c0
         p = (struct proc *) 0xc26425a0
         ke = (struct kse *) 0x0
         kg = (struct ksegrp *) 0xc0ed0b00
         realstathz = 128
         awake = 1
#7  0xc01f69ec in softclock (dummy=0x0) at 
/usr/src/sys/kern/kern_timeout.c:195
         c_func = (void (*)(void *)) 0xc01f9e30 <schedcpu>
         c_arg = (void *) 0x0
         c_flags = 14
         c = (struct callout *) 0x0
         bucket = (struct callout_tailq *) 0xc771d9a0
         curticks = 1604096
         steps = 14
#8  0xc01c59c2 in ithread_loop (arg=0xc0ec8f00) at 
/usr/src/sys/kern/kern_intr.c:537
         ithd = (struct ithd *) 0xc0ec8f00
         ih = (struct intrhand *) 0xc0ec0440
         td = (struct thread *) 0xc0ecbab0
         p = (struct proc *) 0xc0eca780
---Type <return> to continue, or q <return> to quit---
#9  0xc01c49b0 in fork_exit (callout=0xc0ec0440, arg=0x0, frame=0x0) at 
/usr/src/sys/kern/kern_fork.c:768
         td = (struct thread *) 0x0
         p = (struct proc *) 0xc0ec8f00


-- 
Daniel C. Sobral                   (8-DCS)
Gerencia de Operacoes
Divisao de Comunicacao de Dados
Coordenacao de Seguranca
VIVO Centro Oeste Norte
Fones: 55-61-313-7654/Cel: 55-61-9618-0904
E-mail: Daniel.Capo_at_tco.net.br
         Daniel.Sobral_at_tcoip.com.br
         dcs_at_tcoip.com.br

Outros:
	dcs_at_newsguy.com
	dcs_at_freebsd.org
	capo_at_notorious.bsdconspiracy.net

God is Dead
		-- Nietzsche
Nietzsche is Dead
		-- God
Nietzsche is God
		-- The Dead
Received on Tue May 20 2003 - 03:47:59 UTC

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