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 -- Anish Mistry
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