Date: Thu, 04 May 2017 23:02:39 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 219074] panic on cd insert Message-ID: <bug-219074-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=219074 Bug ID: 219074 Summary: panic on cd insert Product: Base System Version: 11.0-RELEASE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: smh@FreeBSD.org When inserting a cdrom on a supermicro IPMI I got the following panic: Fatal trap 9: general protection fault while in kernel mode cpuid = 23; apic id = 2b instruction pointer = 0x20:0xffffffff80304f65 stack pointer = 0x28:0xfffffe0f9452d640 frame pointer = 0x28:0xfffffe0f9452d6e0 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 13 (g_event) trap number = 9 panic: general protection fault cpuid = 23 KDB: stack backtrace: #0 0xffffffff807d80f7 at kdb_backtrace+0x67 #1 0xffffffff8078d4a2 at vpanic+0x182 #2 0xffffffff8078d313 at panic+0x43 #3 0xffffffff80a97d81 at trap_fatal+0x351 #4 0xffffffff80a97a18 at trap+0x768 #5 0xffffffff80a7af41 at calltrap+0x8 #6 0xffffffff802fe682 at cdopen+0x212 #7 0xffffffff806f2225 at g_disk_access+0xc5 #8 0xffffffff806f800e at g_access+0x17e #9 0xffffffff806f800e at g_access+0x17e #10 0xffffffff806ef570 at g_dev_attrchanged+0x60 #11 0xffffffff806ef432 at g_dev_taste+0x2d2 #12 0xffffffff806f864a at g_new_provider_event+0xba #13 0xffffffff806f367e at g_run_events+0x20e #14 0xffffffff80744085 at fork_exit+0x85 #15 0xffffffff80a7b47e at fork_trampoline+0xe #0 doadump (textdump=<value optimized out>) at pcpu.h:221 #1 0xffffffff8078cf29 in kern_reboot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:366 #2 0xffffffff8078d4db in vpanic (fmt=<value optimized out>, ap=<value optimized out>) at /usr/src/sys/kern/kern_shutdown.c:759 #3 0xffffffff8078d313 in panic (fmt=0x0) at /usr/src/sys/kern/kern_shutdown.c:690 #4 0xffffffff80a97d81 in trap_fatal (frame=0xfffffe0f9452d590, eva=0) at /usr/src/sys/amd64/amd64/trap.c:841 #5 0xffffffff80a97a18 in trap (frame=0xfffffe0f9452d590) at /usr/src/sys/amd64/amd64/trap.c:203 #6 0xffffffff80a7af41 in calltrap () at /usr/src/sys/amd64/amd64/exception.S:236 #7 0xffffffff80304f65 in cdcheckmedia (periph=0xfffff80135338a00) at /usr/src/sys/cam/scsi/scsi_cd.c:2340 #8 0xffffffff802fe682 in cdopen (dp=<value optimized out>) at /usr/src/sys/cam/scsi/scsi_cd.c:740 #9 0xffffffff806f2225 in g_disk_access (pp=0x9d, r=<value optimized out>, w=0, e=1) at /usr/src/sys/geom/geom_disk.c:122 #10 0xffffffff806f800e in g_access (cp=0xfffff80019bd7480, dcr=1, dcw=0, dce=1) at /usr/src/sys/geom/geom_subr.c:924 #11 0xffffffff806f800e in g_access (cp=0xfffff80019bd9580, dcr=1, dcw=0, dce=0) at /usr/src/sys/geom/geom_subr.c:924 #12 0xffffffff806ef570 in g_dev_attrchanged (cp=0xfffff80019bd9580, attr=0xffffffff80c0c0b9 "GEOM::physpath") at /usr/src/sys/geom/geom_dev.c:231 #13 0xffffffff806ef432 in g_dev_taste (mp=<value optimized out>, pp=<value optimized out>, insist=<value optimized out>) at /usr/src/sys/geom/geom_dev.c:347 #14 0xffffffff806f864a in g_new_provider_event (arg=<value optimized out>, flag=<value optimized out>) at /usr/src/sys/geom/geom_subr.c:552 #15 0xffffffff806f367e in g_run_events () at /usr/src/sys/geom/geom_event.c:264 #16 0xffffffff80744085 in fork_exit (callout=0xffffffff806f6120 <g_event_procbody>, arg=0x0, frame=0xfffffe0f9452dac0) at /usr/src/sys/kern/kern_fork.c:1038 #17 0xffffffff80a7b47e in fork_trampoline () at /usr/src/sys/amd64/amd64/exception.S:611 #18 0x0000000000000000 in ?? () Looking at frame 7 the value for softc->disk is bogus: (kgdb) frame 7 #7 0xffffffff80304f65 in cdcheckmedia (periph=0xfffff80135338a00) at /usr/src/sys/cam/scsi/scsi_cd.c:2340 2340 if ((softc->disk->d_devstat->flags & DEVSTAT_BS_UNAVAILABLE) != 0) (kgdb) print softc $1 = (struct cd_softc *) 0xfffff8013564a000 (kgdb) print softc->disk $2 = (struct disk *) 0xf741c7b074d58fe4 It looks like there may be a setup / locking issue, when the IPMI device triggered the insert of the cd. Relevant messages just prior to the panic: May 4 14:54:31 host02 kernel: cd0 at umass-sim1 bus 1 scbus3 target 0 lun 0 May 4 14:54:31 host02 kernel: cd0: <IPMI Virtual CDROM 3000> Removable CD-ROM SCSI device May 4 14:54:31 host02 kernel: cd0: 40.000MB/s transfers May 4 14:54:31 host02 kernel: cd0: 685MB (350720 2048 byte sectors) May 4 14:54:31 host02 kernel: cd0: quirks=0x10<10_BYTE_ONLY> -- You are receiving this mail because: You are the assignee for the bug.help
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