Date: Fri, 24 Oct 2014 05:59:05 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 194569] New: kernel panics while loading vmm(4) Message-ID: <bug-194569-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=194569 Bug ID: 194569 Summary: kernel panics while loading vmm(4) Product: Base System Version: 11.0-CURRENT Hardware: amd64 OS: Any Status: Needs Triage Severity: Affects Some People Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: ki@hh.iij4u.or.jp Created attachment 148601 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=148601&action=edit vmm.c.patch When loading vmm(4), following stack trace is shown and kernel panics. (kgdb) #0 doadump (textdump=0) at pcpu.h:219 #1 0xffffffff80332b8e in db_dump (dummy=<value optimized out>, dummy2=0, dummy3=0, dummy4=0x0) at /data/rhea/usr/src/sys/ddb/db_command.c:533 #2 0xffffffff8033266d in db_command (cmd_table=0x0) at /data/rhea/usr/src/sys/ddb/db_command.c:440 #3 0xffffffff803323e4 in db_command_loop () at /data/rhea/usr/src/sys/ddb/db_command.c:493 #4 0xffffffff80334e60 in db_trap (type=<value optimized out>, code=0) at /data/rhea/usr/src/sys/ddb/db_main.c:251 #5 0xffffffff806c9111 in kdb_trap (type=12, code=0, tf=<value optimized out>) at /data/rhea/usr/src/sys/kern/subr_kdb.c:654 #6 0xffffffff808fd45c in trap_fatal (frame=0xfffffe046bcc2400, eva=<value optimized out>) at /data/rhea/usr/src/sys/amd64/amd64/trap.c:861 #7 0xffffffff808fd6f6 in trap_pfault (frame=0xfffffe046bcc2400, usermode=<value optimized out>) at /data/rhea/usr/src/sys/amd64/amd64/trap.c:677 #8 0xffffffff808fce0e in trap (frame=0xfffffe046bcc2400) at /data/rhea/usr/src/sys/amd64/amd64/trap.c:426 #9 0xffffffff808e20b2 in calltrap () at /data/rhea/usr/src/sys/amd64/amd64/exception.S:231 #10 0xffffffff807405fb in strlen (str=0x0) at /data/rhea/usr/src/sys/libkern/strlen.c:98 #11 0xffffffff8064e8de in freeenv (env=0x0) at /data/rhea/usr/src/sys/kern/kern_environment.c:266 #12 0xffffffff816059a8 in vmm_is_pptdev (bus=0, slot=0, func=0) at /data/rhea/usr/src/sys/modules/vmm/../../amd64/vmm/vmm.c:1969 #13 0xffffffff8160ca27 in ppt_probe (dev=0xfffff8000765bd00) at /data/rhea/usr/src/sys/modules/vmm/../../amd64/vmm/io/ppt.c:128 #14 0xffffffff806be860 in device_probe_child (dev=0xfffff8000765c000, child=0xfffff8000765bd00) at device_if.h:108 #15 0xffffffff806bf4c0 in device_probe (dev=0xfffff8000765bd00) at /data/rhea/usr/src/sys/kern/subr_bus.c:2763 #16 0xffffffff806bf5ae in device_probe_and_attach (dev=0xfffff8000765bd00) at /data/rhea/usr/src/sys/kern/subr_bus.c:2787 #17 0xffffffff804c8a6a in pci_driver_added (dev=0xfffff8000765c000, driver=<value optimized out>) at /data/rhea/usr/src/sys/dev/pci/pci.c:3784 #18 0xffffffff806bdb5a in devclass_driver_added (dc=0xfffff800074aaf00, driver=0xffffffff816298e0) at bus_if.h:204 #19 0xffffffff806bdabc in devclass_add_driver (dc=0xfffff800074aaf00, driver=0xffffffff816298e0, pass=<value optimized out>, dcp=<value optimized out>) at /data/rhea/usr/src/sys/kern/subr_bus.c:1138 #20 0xffffffff80676490 in module_register_init (arg=0xffffffff81629958) at /data/rhea/usr/src/sys/kern/kern_module.c:123 #21 0xffffffff8066b238 in linker_load_module (kldname=<value optimized out>, modname=0xfffff8000bf6e000 "vmm", parent=0x0, verinfo=0x0, lfpp=0xfffffe046bcc2a68) at /data/rhea/usr/src/sys/kern/kern_linker.c:224 #22 0xffffffff8066c617 in kern_kldload (td=<value optimized out>, file=<value optimized out>, fileid=0xfffffe046bcc2aa4) at /data/rhea/usr/src/sys/kern/kern_linker.c:1031 #23 0xffffffff8066c6db in sys_kldload (td=0xfffff80178059000, uap=<value optimized out>) at /data/rhea/usr/src/sys/kern/kern_linker.c:1057 This panic occurs when "pptdev" kernel environment is not set. Attached patch fixes this problem, I think. -- You are receiving this mail because: You are the assignee for the bug.
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