Re: panic: mutex Giant not owned at /usr/src/sys/cam/cam_xpt.c:4837

From: Scott Long <scottl_at_samsco.org>
Date: Tue, 25 Apr 2006 22:55:12 -0600
This trace doesn't make much sense.  Maybe FUSE is inappropriately 
messing with CAM internals?

Scott

Anish Mistry wrote:
> I got the above panic from CURRENT as of April 19th.  I wasn't running 
> anything cam related, at least I don't think so.  The system was just 
> idle.
> 
> Unread portion of the kernel message buffer:
> panic: mutex Giant not owned at /usr/src/sys/cam/cam_xpt.c:4837
> KDB: enter: panic
> panic: from debugger
> Uptime: 6h41m53s
> Dumping 239 MB (2 chunks)
>   chunk 0: 1MB (156 pages) ... ok
>   chunk 1: 239MB (61152 pages) 223 207 191 175 159 143 127 111 95 79 
> 63 47 31 15
> 
> #0  doadump () at pcpu.h:166
> 166     pcpu.h: No such file or directory.
>         in pcpu.h
> (kgdb) bt
> #0  doadump () at pcpu.h:166
> #1  0xc04cc445 in boot (howto=260) 
> at /usr/src/sys/kern/kern_shutdown.c:409
> #2  0xc04cbfa3 in panic (fmt=0xc061ce45 "from debugger")
>     at /usr/src/sys/kern/kern_shutdown.c:565
> #3  0xc0442e2d in db_panic (addr=-1068598180, have_addr=0, count=-1, 
>     modif=0xcca4b958 "") at /usr/src/sys/ddb/db_command.c:426
> #4  0xc04431ba in db_command_loop () 
> at /usr/src/sys/ddb/db_command.c:395
> #5  0xc0444da3 in db_trap (type=3, code=0) 
> at /usr/src/sys/ddb/db_main.c:221
> #6  0xc04e807b in kdb_trap (type=3, code=0, tf=0x0)
>     at /usr/src/sys/kern/subr_kdb.c:481
> #7  0xc05ff23c in trap (frame=
>       {tf_fs = 8, tf_es = 40, tf_ds = 40, tf_edi = -1030784912, tf_esi 
> = -1067285255, tf_ebp = -861619444, tf_isp = -861619464, tf_ebx 
> = -861619404, tf_edx = -1067281663, tf_ecx = -1056878592, tf_eax 
> = -1067272577, tf_trapno = 3, tf_err = 0, tf_eip = -1068598180, tf_cs 
> = 32, tf_eflags = 642, tf_esp = -861619416, tf_ss = -1068711934}) 
> at /usr/src/sys/i386/i386/trap.c:622
> #8  0xc05f0afa in calltrap () 
> at /usr/src/sys/i386/i386/exception.s:138
> #9  0xc04e7c5c in kdb_enter (msg=0xc062b67f "KDB: enter: %s\n") at 
> cpufunc.h:60
> #10 0xc04cc002 in panic (fmt=0xc06284f9 "mutex %s not owned at %s:%d")
>     at /usr/src/sys/kern/kern_shutdown.c:549
> #11 0xc04c3b43 in _mtx_assert (m=0xc06286ff, what=-1056878592, 
>     file=0xc06181c9 "/usr/src/sys/cam/cam_xpt.c", line=4837)
>     at /usr/src/sys/kern/kern_mutex.c:768
> ---Type <return> to continue, or q <return> to quit---
> #12 0xc0432c65 in xpt_release_devq (path=0x0, count=1, run_queue=1)
>     at /usr/src/sys/cam/cam_xpt.c:4837
> #13 0xc043420e in xpt_action (start_ccb=0xc22f9530)
>     at /usr/src/sys/cam/cam_xpt.c:3580
> #14 0xc051091b in kern_sendit (td=0xc28f7870, s=4, mp=0xcca4bc6c, 
> flags=0, 
>     control=0x0, segflg=3227694719) 
> at /usr/src/sys/kern/uipc_syscalls.c:775
> #15 0xc0511965 in sendit (td=0xc28f7870, s=4, mp=0xcca4bc6c, flags=0)
>     at /usr/src/sys/kern/uipc_syscalls.c:715
> #16 0xc0511c6e in sendto (td=0xc062b67f, uap=0xc1015000)
>     at /usr/src/sys/kern/uipc_syscalls.c:833
> #17 0xc05ff737 in syscall (frame=
>       {tf_fs = 59, tf_es = 59, tf_ds = 59, tf_edi = 672381756, tf_esi 
> = 134536657, tf_ebp = -1077945788, tf_isp = -861618844, tf_ebx = 
> 672417536, tf_edx = 74, tf_ecx = 134541840, tf_eax = 133, tf_trapno = 
> 12, tf_err = 2, tf_eip = 672270187, tf_cs = 51, tf_eflags = 534, 
> tf_esp = -1077945820, tf_ss = 59})
>     at /usr/src/sys/i386/i386/trap.c:1016
> #18 0xc05f0b4f in Xint0x80_syscall () 
> at /usr/src/sys/i386/i386/exception.s:191
> #19 0x00000033 in ?? ()
> Previous frame inner to this frame (corrupt stack?)
> 
> Dmesg:
> Copyright (c) 1992-2006 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 7.0-CURRENT #0: Wed Apr 19 13:18:18 EDT 2006
>     
> amistry_at_littleguy.am-productions.biz:/usr/obj/usr/src/sys/LITTLEGUY
> Timecounter "i8254" frequency 1193182 Hz quality 0
> CPU: Transmeta(tm) Crusoe(tm) Processor TM5800 (859.34-MHz 586-class 
> CPU)
>   Origin = "GenuineTMx86"  Id = 0x543  Stepping = 3
>   Features=0x80893f<FPU,VME,DE,PSE,TSC,MSR,CX8,SEP,CMOV,MMX>
> real memory  = 251527168 (239 MB)
> avail memory = 236593152 (225 MB)
> Crusoe LongRun support enabled, current mode: 2 <867MHz 1300mV 100%>
> kbd1 at kbdmux0
> acpi0: <FUJ PAULING2> on motherboard
> acpi0: Power Button (fixed)
> acpi_ec0: <Embedded Controller: GPE 0> port 0x62,0x66 on acpi0
> Timecounter "ACPI-safe" frequency 3579545 Hz quality 1000
> acpi_timer0: <24-bit timer at 3.579545MHz> port 0xff08-0xff0b on acpi0
> cpu0: <ACPI CPU> on acpi0
> acpi_throttle0: <ACPI CPU Throttling> on cpu0
> pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
> pci0: <ACPI PCI bus> on pcib0
> pci0: <memory, RAM> at device 0.1 (no driver attached)
> pci0: <memory, RAM> at device 0.2 (no driver attached)
> ohci0: <AcerLabs M5237 (Aladdin-V) USB controller> mem 
> 0xfc100000-0xfc100fff irq 11 at device 2.0 on pci0
> ohci0: [GIANT-LOCKED]
> usb0: OHCI version 1.0, legacy support
> usb0: <AcerLabs M5237 (Aladdin-V) USB controller> on ohci0
> usb0: USB revision 1.0
> usbd_get_string: getting lang failed, using 0
> uhub0: <AcerLabs OHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on 
> usb0
> uhub0: 2 ports with 2 removable, self powered
> pcm0: <Acer Labs M5451> port 0x1000-0x10ff mem 0xfc101000-0xfc101fff 
> irq 9 at device 4.0 on pci0
> pcm0: <SigmaTel STAC9756/57 AC97 Codec>
> pcm0: [GIANT-LOCKED]
> pci0: <bridge> at device 6.0 (no driver attached)
> isab0: <PCI-ISA bridge> at device 7.0 on pci0
> isa0: <ISA bus> on isab0
> cbb0: <TI1410 PCI-CardBus Bridge> irq 9 at device 12.0 on pci0
> cardbus0: <CardBus bus> on cbb0
> pccard0: <16-bit PCCard bus> on cbb0
> atapci0: <AcerLabs M5229 UDMA66 controller> port 
> 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0x1400-0x140f at device 15.0 on 
> pci0
> atapci0: using PIO transfers above 137GB as workaround for 48bit DMA 
> access bug, expect reduced performance
> ata0: <ATA channel 0> on atapci0
> ata1: <ATA channel 1> on atapci0
> rl0: <RealTek 8139 10/100BaseTX> port 0x8000-0x80ff mem 
> 0xfc102000-0xfc1020ff irq 9 at device 16.0 on pci0
> miibus0: <MII bus> on rl0
> rlphy0: <RealTek internal media interface> on miibus0
> rlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
> rl0: Ethernet address: 00:e0:00:ae:45:08
> fwohci0: <Texas Instruments TSB43AB21/A/AI/A-EP> mem 
> 0xfc102800-0xfc102fff,0xfc104000-0xfc107fff irq 9 at device 19.0 on 
> pci0
> fwohci0: OHCI version 1.10 (ROM=0)
> fwohci0: No. of Isochronous channels is 4.
> fwohci0: EUI64 00:00:0e:10:00:b0:29:d0
> fwohci0: Phy 1394a available S400, 1 ports.
> fwohci0: Link S400, max_rec 2048 bytes.
> firewire0: <IEEE1394(FireWire) bus> on fwohci0
> dcons_crom0: <dcons configuration ROM> on firewire0
> dcons_crom0: bus_addr 0xea34000
> fwohci0: Initiate bus reset
> fwohci0: node_id=0x8800ffc0, gen=1, non CYCLEMASTER mode
> firewire0: 2 nodes, maxhop <= 1, cable IRM = 1
> vgapci0: <VGA-compatible display> port 0x1800-0x18ff mem 
> 0xfd000000-0xfdffffff,0xfc103000-0xfc103fff irq 9 at device 20.0 on 
> pci0
> acpi_video0: <ACPI video extension> on vgapci0
> drm0: <Rage Mobility P/M> on vgapci0
> info: [drm] Initialized mach64 1.0.0 20020904
> acpi_button0: <Power Button> on acpi0
> acpi_acad0: <AC Adapter> on acpi0
> battery0: <ACPI Control Method Battery> on acpi0
> battery1: <ACPI Control Method Battery> on acpi0
> acpi_lid0: <Control Method Lid Switch> on acpi0
> atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
> atkbd0: <AT Keyboard> irq 1 on atkbdc0
> kbd0 at atkbd0
> atkbd0: [GIANT-LOCKED]
> psm0: <PS/2 Mouse> flags 0x3000 irq 12 on atkbdc0
> psm0: [GIANT-LOCKED]
> psm0: model Generic PS/2 mouse, device ID 0
> acpi_fujitsu0: <Fujitsu Function Hotkeys FUJ02B1> on acpi0
> pmtimer0 on isa0
> orm0: <ISA Option ROMs> at iomem 0xc0000-0xcffff,0xd0000-0xd0fff pnpid 
> ORM0000 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
> Timecounter "TSC" frequency 859339043 Hz quality 800
> Timecounters tick every 10.000 msec
> acpi_acad0: acline initialization start
> battery0: battery initialization start
> battery1: battery initialization start
> acpi_acad0: On Line
> acpi_acad0: acline initialization done, tried 1 times
> battery0: battery initialization done, tried 1 times
> ad0: 19077MB <TOSHIBA MK2018GAP M1.42 A> at ata0-master UDMA66
> firewire0: bus manager 1 
> acd0: CDRW <TOSHIBA DVD-ROM SD-R2212/1F15> at ata1-master UDMA33
> firewire0: New S400 device ID:0000d1008051e6dd
> Trying to mount root from ufs:/dev/ad0s2a
> WARNING: / was not properly dismounted
> WARNING: /tmp was not properly dismounted
> WARNING: /usr was not properly dismounted
> WARNING: /var was not properly dismounted
> battery1: battery initialization failed, giving up
> fuse4bsd: version 0.3.0, FUSE ABI 7.5
> 
> 
> 
Received on Wed Apr 26 2006 - 02:55:38 UTC

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