From owner-freebsd-current@FreeBSD.ORG Tue May 13 18:53:32 2008 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 06E5F106566C for ; Tue, 13 May 2008 18:53:32 +0000 (UTC) (envelope-from keramida@ceid.upatras.gr) Received: from igloo.linux.gr (igloo.linux.gr [62.1.205.36]) by mx1.freebsd.org (Postfix) with ESMTP id 258B78FC14 for ; Tue, 13 May 2008 18:53:30 +0000 (UTC) (envelope-from keramida@ceid.upatras.gr) Received: from kobe.laptop (adsl130-10.kln.forthnet.gr [77.49.249.10]) (authenticated bits=128) by igloo.linux.gr (8.14.2/8.14.2/Debian-4) with ESMTP id m4DIr1Wh024743 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT) for ; Tue, 13 May 2008 21:53:08 +0300 Received: from kobe.laptop (kobe.laptop [127.0.0.1]) by kobe.laptop (8.14.2/8.14.2) with ESMTP id m4DIr0PO001726 for ; Tue, 13 May 2008 21:53:01 +0300 (EEST) (envelope-from keramida@ceid.upatras.gr) Received: (from keramida@localhost) by kobe.laptop (8.14.2/8.14.2/Submit) id m4DIr0Bt001725; Tue, 13 May 2008 21:53:00 +0300 (EEST) (envelope-from keramida@ceid.upatras.gr) From: Giorgos Keramidas To: current@freebsd.org Date: Tue, 13 May 2008 21:53:00 +0300 Message-ID: <87ve1iqbn7.fsf@kobe.laptop> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.60 (berkeley-unix) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-MailScanner-ID: m4DIr1Wh024743 X-Hellug-MailScanner: Found to be clean X-Hellug-MailScanner-SpamCheck: not spam, SpamAssassin (not cached, score=-3.896, required 5, autolearn=not spam, ALL_TRUSTED -1.80, AWL 0.50, BAYES_00 -2.60) X-Hellug-MailScanner-From: keramida@ceid.upatras.gr X-Spam-Status: No Cc: Subject: repeated panics in vm_reserv_alloc_page() X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 13 May 2008 18:53:32 -0000 I've been seeing panics in vm_reserv_alloc_page() for a few days with CURRENT built from sources at 2008-05-09 20:38:25 +0000. The panics seem to be triggered by X11 sessions, but not when I work in the console only. dmesg output and stack traces from the vmcore.{7,8,9,10,11,12} kernel dumps I have around are attached below. Look for 'vmcore.' to find the traces after the dmesg text. [--- dmesg ---] Copyright (c) 1992-2008 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 is a registered trademark of The FreeBSD Foundation. FreeBSD 8.0-CURRENT #0: Sat May 10 06:30:40 EEST 2008 build@kobe:/home/build/obj/home/build/src/sys/KOBE WARNING: WITNESS option enabled, expect reduced performance. Timecounter "i8254" frequency 1193182 Hz quality 0 CPU: Genuine Intel(R) CPU T2400 @ 1.83GHz (1828.77-MHz 686-class CPU) Origin = "GenuineIntel" Id = 0x6e8 Stepping = 8 Features=0xbfe9fbff Features2=0xc1a9 Cores per package: 2 real memory = 528089088 (503 MB) avail memory = 507576320 (484 MB) ACPI APIC Table: FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs cpu0 (BSP): APIC ID: 0 cpu1 (AP): APIC ID: 1 ioapic0: Changing APIC ID to 1 ioapic0 irqs 0-23 on motherboard kbd1 at kbdmux0 ath_hal: 0.9.20.3 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413) acpi0: on motherboard acpi0: [ITHREAD] acpi0: Power Button (fixed) acpi0: reservation of 0, a0000 (3) failed acpi0: reservation of 100000, 1f6a0000 (3) failed Timecounter "ACPI-safe" frequency 3579545 Hz quality 850 acpi_timer0: <24-bit timer at 3.579545MHz> port 0xd808-0xd80b on acpi0 pcib0: port 0xcf8-0xcff on acpi0 pci0: on pcib0 vgapci0: port 0xcff8-0xcfff mem 0xffd80000-0xffdfffff,0xe0000000-0xefffffff,0xffd40000-0xffd7ffff irq 16 at device 2.0 on pci0 agp0: on vgapci0 agp0: detected 7932k stolen memory agp0: aperture size is 256M vgapci1: at device 2.1 on pci0 pcm0: at device 27.0 on pci0 pcm0: [ITHREAD] pcib1: irq 17 at device 28.0 on pci0 pci1: on pcib1 pcib2: irq 18 at device 28.2 on pci0 pci2: on pcib2 pci2: at device 0.0 (no driver attached) uhci0: port 0xcf80-0xcf9f irq 23 at device 29.0 on pci0 uhci0: [GIANT-LOCKED] uhci0: [ITHREAD] usb0: on uhci0 usb0: USB revision 1.0 uhub0: on usb0 uhub0: 2 ports with 2 removable, self powered uhci1: port 0xcf60-0xcf7f irq 19 at device 29.1 on pci0 uhci1: [GIANT-LOCKED] uhci1: [ITHREAD] usb1: on uhci1 usb1: USB revision 1.0 uhub1: on usb1 uhub1: 2 ports with 2 removable, self powered uhci2: port 0xcf40-0xcf5f irq 18 at device 29.2 on pci0 uhci2: [GIANT-LOCKED] uhci2: [ITHREAD] usb2: on uhci2 usb2: USB revision 1.0 uhub2: on usb2 uhub2: 2 ports with 2 removable, self powered uhci3: port 0xcf20-0xcf3f irq 16 at device 29.3 on pci0 uhci3: [GIANT-LOCKED] uhci3: [ITHREAD] usb3: on uhci3 usb3: USB revision 1.0 uhub3: on usb3 uhub3: 2 ports with 2 removable, self powered ehci0: mem 0xffd3fc00-0xffd3ffff irq 23 at device 29.7 on pci0 ehci0: [GIANT-LOCKED] ehci0: [ITHREAD] usb4: EHCI version 1.0 usb4: companion controllers, 2 ports each: usb0 usb1 usb2 usb3 usb4: on ehci0 usb4: USB revision 2.0 uhub4: on usb4 uhub4: 8 ports with 8 removable, self powered pcib3: at device 30.0 on pci0 pci3: on pcib3 fxp0: port 0xbf40-0xbf7f mem 0xffaff000-0xffafffff irq 20 at device 8.0 on pci3 miibus0: on fxp0 inphy0: PHY 1 on miibus0 inphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto fxp0: Ethernet address: 00:0e:7b:77:8c:f0 fxp0: [ITHREAD] cbb0: at device 11.0 on pci3 cardbus0: on cbb0 pccard0: <16-bit PCCard bus> on cbb0 cbb0: [ITHREAD] fwohci0: <1394 Open Host Controller Interface> at device 11.1 on pci3 fwohci0: [FILTER] fwohci0: OHCI version 1.10 (ROM=1) fwohci0: No. of Isochronous channels is 4. fwohci0: EUI64 00:00:39:00:00:ad:d6:2a fwohci0: Phy 1394a available S400, 3 ports. fwohci0: Link S400, max_rec 2048 bytes. firewire0: on fwohci0 fwe0: on firewire0 if_fwe0: Fake Ethernet address: 02:00:39:ad:d6:2a fwe0: Ethernet address: 02:00:39:ad:d6:2a fwip0: on firewire0 fwip0: Firewire address: 00:00:39:00:00:ad:d6:2a @ 0xfffe00000000, S400, maxrec 2048 dcons_crom0: on firewire0 dcons_crom0: bus_addr 0x1eccc000 sbp0: on firewire0 fwohci0: Initiate bus reset fwohci0: BUS reset fwohci0: node_id=0xc000ffc0, gen=1, CYCLEMASTER mode pci3: at device 11.2 (no driver attached) pci3: at device 11.3 (no driver attached) isab0: at device 31.0 on pci0 isa0: on isab0 atapci0: port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xafa0-0xafaf irq 19 at device 31.2 on pci0 ata0: on atapci0 ata0: [ITHREAD] ata1: on atapci0 ata1: [ITHREAD] acpi_hpet0: iomem 0xfed00000-0xfed003ff on acpi0 Timecounter "HPET" frequency 14318180 Hz quality 900 cpu0: on acpi0 est0: on cpu0 est0: Setting 1830 MHz p4tcc0: on cpu0 cpu1: on acpi0 est1: on cpu1 est1: Setting 1830 MHz p4tcc1: on cpu1 acpi_lid0: on acpi0 battery0: on acpi0 acpi_button0: on acpi0 acpi_acad0: on acpi0 acpi_tz0: on acpi0 atkbdc0: port 0x60,0x64 irq 1 on acpi0 atkbd0: irq 1 on atkbdc0 kbd0 at atkbd0 atkbd0: [GIANT-LOCKED] atkbd0: [ITHREAD] psm0: irq 12 on atkbdc0 psm0: [GIANT-LOCKED] psm0: [ITHREAD] psm0: model GlidePoint, device ID 0 atrtc0: port 0x70-0x71 irq 8 on acpi0 pmtimer0 on isa0 orm0: at iomem 0xc0000-0xcffff,0xe0000-0xeffff pnpid ORM0000 on isa0 sc0: at flags 0x100 on isa0 sc0: VGA <16 virtual consoles, flags=0x300> vga0: at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0 sio0: configured irq 4 not in bitmap of probed irqs 0 sio0: port may not be enabled sio0: configured irq 4 not in bitmap of probed irqs 0 sio0: port may not be enabled sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0 sio0: type 8250 or not responding sio0: [FILTER] sio1: configured irq 3 not in bitmap of probed irqs 0 sio1: port may not be enabled ugen0: on uhub1 Timecounters tick every 1.000 msec firewire0: 1 nodes, maxhop <= 0, cable IRM = 0 (me) firewire0: bus manager 0 (me) ad0: 76319MB at ata0-master SATA150 acd0: DVDR at ata1-master UDMA33 pcm0: pcm0: acd0: FAILURE - INQUIRY ILLEGAL REQUEST asc=0x24 ascq=0x00 acd0: FAILURE - INQUIRY ILLEGAL REQUEST asc=0x24 ascq=0x00 SMP: AP CPU #1 Launched! WARNING: WITNESS option enabled, expect reduced performance. cd0 at ata1 bus 0 target 0 lun 0 cd0: Removable CD-ROM SCSI-0 device cd0: 33.000MB/s transfers cd0: Attempt to query device size failed: NOT READY, Medium not present lock order reversal: (sleepable after non-sleepable) 1st 0xc2cd8020 struct mount mtx (struct mount mtx) @ /home/build/src/sys/kern/vfs_subr.c:343 2nd 0xc2cd8000 vfslock (vfslock) @ /home/build/src/sys/kern/vfs_subr.c:370 KDB: stack backtrace: db_trace_self_wrapper(c08b45be,d36c1b6c,c060f8ee,c08b6e57,c2cd8000,...) at db_trace_self_wrapper+0x26 kdb_backtrace(c08b6e57,c2cd8000,c08bcdab,c08bcdab,c08bd348,...) at kdb_backtrace+0x29 witness_checkorder(c2cd8000,1,c08bd348,172,4,...) at witness_checkorder+0x6de __lockmgr_args(c2cd8000,200100,c2cd8020,0,0,...) at __lockmgr_args+0x220 vfs_busy(c2cd8000,200,0,c28eacc0,1,...) at vfs_busy+0x1bc vfs_mount_alloc(0,c08fcf00,c08bd0ee,c28eacc0,c064d280,...) at vfs_mount_alloc+0x78 vfs_mountroot(c09586b0,4,c08ac024,264,ffffffff,...) at vfs_mountroot+0x26c start_init(0,d36c1d38,c08ad9e8,30d,c28e8cf8,...) at start_init+0x65 fork_exit(c059a9c0,0,d36c1d38) at fork_exit+0xb8 fork_trampoline() at fork_trampoline+0x8 --- trap 0, eip = 0, esp = 0xd36c1d70, ebp = 0 --- lock order reversal: (sleepable after non-sleepable) 1st 0xc2cd92a8 vnode interlock (vnode interlock) @ /home/build/src/sys/fs/devfs/devfs_vnops.c:197 2nd 0xc2cd9288 devfs (devfs) @ /home/build/src/sys/kern/vfs_subr.c:2044 KDB: stack backtrace: db_trace_self_wrapper(c08b45be,d36c1a98,c060f8ee,c08b6e57,c2cd9288,...) at db_trace_self_wrapper+0x26 kdb_backtrace(c08b6e57,c2cd9288,c08a7781,c08a7781,c08bd348,...) at kdb_backtrace+0x29 witness_checkorder(c2cd9288,9,c08bd348,7fc,c2cd9288,...) at witness_checkorder+0x6de __lockmgr_args(c2cd9288,80100,c2cd92a8,0,0,...) at __lockmgr_args+0x777 vop_stdlock(d36c1b90,c08a796c,c08aacd6,80100,c2cd9230,...) at vop_stdlock+0x62 VOP_LOCK1_APV(c08fcf80,d36c1b90,c093a120,c2cd9230,80100,...) at VOP_LOCK1_APV+0xa5 _vn_lock(c2cd9230,80100,c08bd348,7fc,c08a796c,...) at _vn_lock+0x5e vget(c2cd9230,80100,c28eacc0,c6,c2cc4454,...) at vget+0x9c devfs_allocv(c2cd4c80,c2cd8000,d36c1c20,c28eacc0,c28ead64,...) at devfs_allocv+0x11d devfs_root(c2cd8000,80000,c09aafb8,c28eacc0,4,...) at devfs_root+0x51 set_rootvnode(c09aafa0,0,c08bcca6,5f6,c064d280,...) at set_rootvnode+0x2d vfs_mountroot(c09586b0,4,c08ac024,264,ffffffff,...) at vfs_mountroot+0x34c start_init(0,d36c1d38,c08ad9e8,30d,c28e8cf8,...) at start_init+0x65 fork_exit(c059a9c0,0,d36c1d38) at fork_exit+0xb8 fork_trampoline() at fork_trampoline+0x8 --- trap 0, eip = 0, esp = 0xd36c1d70, ebp = 0 --- lock order reversal: 1st 0xc2cd9288 devfs (devfs) @ /home/build/src/sys/kern/vfs_subr.c:2044 2nd 0xc2cc4454 devfsmount (devfsmount) @ /home/build/src/sys/fs/devfs/devfs_vnops.c:201 KDB: stack backtrace: db_trace_self_wrapper(c08b45be,d36c1bb4,c060f8ee,c08b6e57,c2cc4454,...) at db_trace_self_wrapper+0x26 kdb_backtrace(c08b6e57,c2cc4454,c08a792b,c08a792b,c08a796c,...) at kdb_backtrace+0x29 witness_checkorder(c2cc4454,9,c08a796c,c9,c7,...) at witness_checkorder+0x6de _sx_xlock(c2cc4454,0,c08a796c,c9,c2cc4454,...) at _sx_xlock+0x7d devfs_allocv(c2cd4c80,c2cd8000,d36c1c20,c28eacc0,c28ead64,...) at devfs_allocv+0x142 devfs_root(c2cd8000,80000,c09aafb8,c28eacc0,4,...) at devfs_root+0x51 set_rootvnode(c09aafa0,0,c08bcca6,5f6,c064d280,...) at set_rootvnode+0x2d vfs_mountroot(c09586b0,4,c08ac024,264,ffffffff,...) at vfs_mountroot+0x34c start_init(0,d36c1d38,c08ad9e8,30d,c28e8cf8,...) at start_init+0x65 fork_exit(c059a9c0,0,d36c1d38) at fork_exit+0xb8 fork_trampoline() at fork_trampoline+0x8 --- trap 0, eip = 0, esp = 0xd36c1d70, ebp = 0 --- Trying to mount root from ufs:/dev/ad0s1a WARNING: / was not properly dismounted /: mount pending error: blocks 16 files 1 lock order reversal: (sleepable after non-sleepable) 1st 0xc2bb0ee8 bufobj interlock (bufobj interlock) @ /home/build/src/sys/kern/vfs_bio.c:2442 2nd 0xccb18a88 bufwait (bufwait) @ /home/build/src/sys/kern/vfs_bio.c:2456 KDB: stack backtrace: db_trace_self_wrapper(c08b45be,d36c1790,c060f8ee,c08b6e57,ccb18a88,...) at db_trace_self_wrapper+0x26 kdb_backtrace(c08b6e57,ccb18a88,c08bbc67,c08bbc67,c08bb20f,...) at kdb_backtrace+0x29 witness_checkorder(ccb18a88,9,c08bb20f,998,4,...) at witness_checkorder+0x6de __lockmgr_args(ccb18a88,81900,c2bb0ee8,c08bbbc3,50,...) at __lockmgr_args+0x777 getblk(c2bb0e38,0,0,800,0,...) at getblk+0x153 breadn(c2bb0e38,0,0,800,0,...) at breadn+0x44 bread(c2bb0e38,0,0,800,0,...) at bread+0x4c ffs_blkatoff(c2bb0e38,0,0,0,d36c19a8,...) at ffs_blkatoff+0xd1 ufs_lookup(d36c19ec,c2bb0e38,d36c1b50,c2bb0e38,d36c1a0c,...) at ufs_lookup+0x2b5 VOP_CACHEDLOOKUP_APV(c0923740,d36c19ec,d36c1b50,d36c1b3c,c28b4500,...) at VOP_CACHEDLOOKUP_APV+0xa5 vfs_cache_lookup(d36c1a6c,d36c1a6c,500000c,80000,c2bb0e38,...) at vfs_cache_lookup+0xd0 VOP_LOOKUP_APV(c0923740,d36c1a6c,c08bca4d,1b0,d36c1b3c,...) at VOP_LOOKUP_APV+0xa5 lookup(d36c1b24,c08bca4d,d8,c0,c28b462c,...) at lookup+0x57e namei(d36c1b24,d36c1b28,c060f0cc,c05c588c,c09aa810,...) at namei+0x44b kern_unlinkat(c28eacc0,ffffff9c,c08bd0ea,1,d36c1c5c,...) at kern_unlinkat+0x46 kern_unlink(c28eacc0,c08bd0ea,1,631,0,...) at kern_unlink+0x27 vfs_mountroot_try(c08bd2a4,c08aacd8,c08a5717,1,c064d280,...) at vfs_mountroot_try+0x472 vfs_mountroot(c09586b0,4,c08ac024,264,ffffffff,...) at vfs_mountroot+0x40e start_init(0,d36c1d38,c08ad9e8,30d,c28e8cf8,...) at start_init+0x65 fork_exit(c059a9c0,0,d36c1d38) at fork_exit+0xb8 fork_trampoline() at fork_trampoline+0x8 --- trap 0, eip = 0, esp = 0xd36c1d70, ebp = 0 --- lock order reversal: 1st 0xc2e85b48 ufs (ufs) @ /home/build/src/sys/kern/vfs_mount.c:1071 2nd 0xc2f185d4 devfsmount (devfsmount) @ /home/build/src/sys/fs/devfs/devfs_vfsops.c:157 KDB: stack backtrace: db_trace_self_wrapper(c08b45be,d5da8a3c,c060f8ee,c08b6e57,c2f185d4,...) at db_trace_self_wrapper+0x26 kdb_backtrace(c08b6e57,c2f185d4,c08a792b,c08a792b,c08a78db,...) at kdb_backtrace+0x29 witness_checkorder(c2f185d4,9,c08a78db,9d,c05ac3ba,...) at witness_checkorder+0x6de _sx_xlock(c2f185d4,0,c08a78db,9d,c09ab0c4,...) at _sx_xlock+0x7d devfs_root(c2e7928c,80000,d5da8c30,c2d38660,0,...) at devfs_root+0x34 vfs_donmount(8106040,8,d5da8c70,c2ea3600,bfbfdd01,...) at vfs_donmount+0x16fe nmount(c2d38660,d5da8cfc,c,c2d38660,c0902b90,...) at nmount+0xb3 syscall(d5da8d38) at syscall+0x2a3 Xint0x80_syscall() at Xint0x80_syscall+0x20 --- syscall (378, FreeBSD ELF32, nmount), eip = 0x280d433b, esp = 0xbfbfdcdc, ebp = 0xbfbfe238 --- [--- vmcore.7 ---] [--- vmcore.8 ---] [--- vmcore.9 ---] [--- vmcore.10 ---] [--- vmcore.11 ---] ( The stack traces of vmcore.{7,8,9,10,11} are exactly the same. ) #0 doadump () at pcpu.h:196 #1 0xc05d2bbe in boot (howto=260) at /home/build/src/sys/kern/kern_shutdown.c:418 #2 0xc05d2e83 in panic (fmt=Variable "fmt" is not available. ) at /home/build/src/sys/kern/kern_shutdown.c:572 #3 0xc085fae3 in trap_fatal (frame=0xd5e3aa40, eva=3247308032) at /home/build/src/sys/i386/i386/trap.c:894 #4 0xc08603b0 in trap (frame=0xd5e3aa40) at /home/build/src/sys/i386/i386/trap.c:279 #5 0xc084426b in calltrap () at /home/build/src/sys/i386/i386/exception.s:146 #6 0xc07fa622 in vm_reserv_alloc_page (object=0xc30f4980, pindex=924005) at /home/build/src/sys/vm/vm_reserv.c:320 #7 0xc07f3d1e in vm_page_alloc (object=0xc30f4980, pindex=924005, req=64) at /home/build/src/sys/vm/vm_page.c:1066 #8 0xc07e3bd2 in vm_fault (map=0xc2e00a24, vaddr=705896448, fault_type=1 '\001', fault_flags=Variable "fault_flags" is not available. ) at /home/build/src/sys/vm/vm_fault.c:441 #9 0xc085fc08 in trap_pfault (frame=0xd5e3ad38, usermode=1, eva=705896448) at /home/build/src/sys/i386/i386/trap.c:784 #10 0xc08604d9 in trap (frame=0xd5e3ad38) at /home/build/src/sys/i386/i386/trap.c:352 #11 0xc084426b in calltrap () at /home/build/src/sys/i386/i386/exception.s:146 #12 0x28497eee in ?? () Previous frame inner to this frame (corrupt stack?) [--- vmcore.12 ---] #0 doadump () at pcpu.h:196 #1 0xc05d2bbe in boot (howto=260) at /home/build/src/sys/kern/kern_shutdown.c:418 #2 0xc05d2e83 in panic (fmt=Variable "fmt" is not available. ) at /home/build/src/sys/kern/kern_shutdown.c:572 #3 0xc085fae3 in trap_fatal (frame=0xd5d89a40, eva=3247312872) at /home/build/src/sys/i386/i386/trap.c:894 #4 0xc08603b0 in trap (frame=0xd5d89a40) at /home/build/src/sys/i386/i386/trap.c:279 #5 0xc084426b in calltrap () at /home/build/src/sys/i386/i386/exception.s:146 #6 0xc07fa6eb in vm_reserv_alloc_page (object=0xc315ed00, pindex=924144) at /home/build/src/sys/vm/vm_reserv.c:334 #7 0xc07f3d1e in vm_page_alloc (object=0xc315ed00, pindex=924144, req=64) at /home/build/src/sys/vm/vm_page.c:1066 #8 0xc07e3bd2 in vm_fault (map=0xc28ee1d8, vaddr=706465792, fault_type=1 '\001', fault_flags=Variable "fault_flags" is not available. ) at /home/build/src/sys/vm/vm_fault.c:441 #9 0xc085fc08 in trap_pfault (frame=0xd5d89d38, usermode=1, eva=706465792) at /home/build/src/sys/i386/i386/trap.c:784 #10 0xc08604d9 in trap (frame=0xd5d89d38) at /home/build/src/sys/i386/i386/trap.c:352 #11 0xc084426b in calltrap () at /home/build/src/sys/i386/i386/exception.s:146 #12 0x28497eee in ?? () Previous frame inner to this frame (corrupt stack?) The video adapter on this laptop is: vgapci0@pci0:0:2:0: class=0x030000 card=0x00031179 chip=0x27a28086 rev=0x03 hdr=0x00 vendor = 'Intel Corporation' device = 'Mobile 945GM/GU Express Integrated Graphics Controller' class = display subclass = VGA vgapci1@pci0:0:2:1: class=0x038000 card=0x00031179 chip=0x27a68086 rev=0x03 hdr=0x00 vendor = 'Intel Corporation' device = 'Mobile 945GM/GU Express Integrated Graphics Controller' class = display Has anyone else seen similar panics with Intel VGA and X11 in CURRENT? Is there anything from the vmcore.* files I can show to help our VM gurus understand what causes the panic?