Bug 180600

Summary:	[panic] kernel panic FreeBSD-10.0-CURRENT while running Chromium browser application
Product:	Base System	Reporter:	ron <ron>
Component:	kern	Assignee:	freebsd-bugs (Nobody) <bugs>
Status:	Closed Overcome By Events
Severity:	Affects Only Me	CC:	cpm, emaste
Priority:	Normal
Version:	10.0-CURRENT
Hardware:	Any
OS:	Any
See Also:	https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=169488

Description ron 2013-07-16 21:30:00 UTC

Kernel panic experienced with FreeBSD-10.0-CURRENT while running the
chromium browser application.  Had been using the operating system,
and running the application "Chromium 27.0" for four hours.  Accessed
a page on Wordpress.com and experienced the kernel panic.  Had been
viewing many pages on Wordpress throughout four hour period prior to
panic.  System message log entries follow:

Jul 16 00:22:06 steelhullketch syslogd: kernel boot file is /boot/kernel/kernel
Jul 16 00:22:06 steelhullketch kernel: lock order reversal:
Jul 16 00:22:06 steelhullketch kernel: 1st 0xc61c74a4 ufs (ufs) @/usr/src/sys/kern/vfs_syscalls.c:3473

Jul 16 00:22:06 steelhullketch kernel: 2nd 0xc4a28858 bufwait (bufwait) @ /usr/src/sys/ufs/ffs/ffs_vnops.c:262

Jul 16 00:22:06 steelhullketch kernel: 3rd 0xc61c7388 ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:2099
Jul 16 00:22:06 steelhullketch kernel: KDB: stack backtrace:
Jul 16 00:22:06 steelhullketch kernel: db_trace_self_wrapper(c11088c8,3236323a,c13c000a,1,3,...) at db_trace_self_wrapper+0x2d/frame 0xe854c7e0

Jul 16 00:22:06 steelhullketch kernel: kdb_backtrace(c110c40e,c61c7388,c10f392e,c4d855a8,c1115783,...) at kdb_backtrace+0x30/frame 0xe854c848

Jul 16 00:22:06 steelhullketch kernel: witness_checkorder(c61c7388,9,c1115783,833,c61c73a8,...) at witness_checkorder+0xccc/frame 0xe854c898

Jul 16 00:22:06 steelhullketch kernel: __lockmgr_args(c61c7388,80100,c61c73a8,0,0,...) at __lockmgr_args+0x83d/frame 0xe854c970

Jul 16 00:22:06 steelhullketch kernel: ffs_lock(e854c9f0,c4d7e1e0,c4d83a70,c4d7e1e0,c4d83a70,...) at ffs_lock+0x87/frame 0xe854c9ac

Jul 16 00:22:06 steelhullketch kernel: VOP_LOCK1_APV(c1234680,e854c9f0,0,c5b49930,c1248f10,...) at VOP_LOCK1_APV+0x104/frame 0xe854c9d8

Jul 16 00:22:06 steelhullketch kernel: _vn_lock(c61c7354,80100,c1115783,833,c1114a19,...) at _vn_lock+0xa1/frame 0xe854ca18

Jul 16 00:22:06 steelhullketch kernel: vget(c61c7354,80100,c5b49930,57,0,...) at vget+0x74/frame 0xe854ca50

Jul 16 00:22:06 steelhullketch kernel: vfs_hash_get(c5473d20,81e39d,80000,c5b49930,e854cb30,...) at vfs_hash_get+0xfc/frame 0xe854ca7c

Jul 16 00:22:06 steelhullketch kernel: ffs_vgetf(c5473d20,81e39d,80000,e854cb30,1,...) at ffs_vgetf+0x47/frame 0xe854cad8

Jul 16 00:22:06 steelhullketch kernel: softdep_sync_buf(c61c7470,c4a28800,1,0,0,...) at softdep_sync_buf+0x8ef/frame 0xe854cb40

Jul 16 00:22:06 steelhullketch kernel: ffs_syncvnode(c61c7470,1,0,d96,c1234680,...) at ffs_syncvnode+0x287/frame 0xe854cb98

Jul 16 00:22:06 steelhullketch kernel: ffs_fsync(e854cc18,c1116bb8,d96,0,0,...) at ffs_fsync+0x26/frame 0xe854cbbc

Jul 16 00:22:06 steelhullketch kernel: VOP_FSYNC_APV(c1234680,e854cc18,d96,0,0,...) at VOP_FSYNC_APV+0xfd/frame 0xe854cbe8

Jul 16 00:22:06 steelhullketch kernel: sys_fsync(c5b49930,e854ccc8,0,200046,76e7e858,...) at sys_fsync+0x190/frame 0xe854cc40

Jul 16 00:22:06 steelhullketch kernel: syscall(e854cd08) at syscall+0x2de/frame 0xe854ccfc

Jul 16 00:22:06 steelhullketch kernel: Xint0x80_syscall() at Xint0x80_syscall+0x21/frame 0xe854ccfc

Jul 16 00:22:06 steelhullketch kernel: --- syscall (95, FreeBSD ELF32, sys_fsync), eip = 0x2d671903, esp = 0xbf5f90c8, ebp = 0xbf5f90e0 ---

Jul 16 00:22:06 steelhullketch kernel: VNASSERT failed
Jul 16 00:22:06 steelhullketch kernel: 0xc6601470: tag none, type VBAD
Jul 16 00:22:06 steelhullketch kernel: usecount 0, writecount 0, refcount 0 mountedhere 0
Jul 16 00:22:06 steelhullketch kernel: flags (VV_NOSYNC|VI_DOOMED)
Jul 16 00:22:06 steelhullketch kernel: lock type ufs: UNLOCKED
Jul 16 00:22:06 steelhullketch kernel: panic: No vop_advlock(0xc6601470, 0xe854fba8)
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0
Jul 16 00:22:06 steelhullketch kernel: KDB: enter: panic
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0; apic id = 00
Jul 16 00:22:06 steelhullketch kernel: instruction pointer	= 0x20:0xc0aecf2d
Jul 16 00:22:06 steelhullketch kernel: stack pointer	        = 0x28:0xe854fad4
Jul 16 00:22:06 steelhullketch kernel: frame pointer	        = 0x28:0xe854fae0
Jul 16 00:22:06 steelhullketch kernel: code segment		= base rx0, limit 0xfffff, type 0x1b
Jul 16 00:22:06 steelhullketch kernel: = DPL 0, pres 1, def32 1, gran 1
Jul 16 00:22:06 steelhullketch kernel: processor eflags	= IOPL = 0
Jul 16 00:22:06 steelhullketch kernel: current process		= 1126 (chrome)
Jul 16 00:22:06 steelhullketch kernel: trap number		= 3
Jul 16 00:22:06 steelhullketch kernel: panic: breakpoint instruction fault
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0
Jul 16 00:22:06 steelhullketch kernel: KDB: enter: panic
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0; apic id = 00
Jul 16 00:22:06 steelhullketch kernel: instruction pointer	= 0x20:0xc0aecf2d
Jul 16 00:22:06 steelhullketch kernel: stack pointer	        = 0x28:0xe854f89c
Jul 16 00:22:06 steelhullketch kernel: frame pointer	        = 0x28:0xe854f8a8
Jul 16 00:22:06 steelhullketch kernel: code segment		= base rx0, limit 0xfffff, type 0x1b
Jul 16 00:22:06 steelhullketch kernel: = DPL 0, pres 1, def32 1, gran 1
Jul 16 00:22:06 steelhullketch kernel: processor eflags	= IOPL = 0
Jul 16 00:22:06 steelhullketch kernel: current process		= 1126 (chrome)
Jul 16 00:22:06 steelhullketch kernel: trap number		= 3
Jul 16 00:22:06 steelhullketch kernel: panic: breakpoint instruction fault
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0
Jul 16 00:22:06 steelhullketch kernel: KDB: enter: panic
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0; apic id = 00
Jul 16 00:22:06 steelhullketch kernel: instruction pointer	= 0x20:0xc0aecf2d
Jul 16 00:22:06 steelhullketch kernel: stack pointer	        = 0x28:0xe854f664
Jul 16 00:22:06 steelhullketch kernel: frame pointer	        = 0x28:0xe854f670
Jul 16 00:22:06 steelhullketch kernel: code segment		= base rx0, limit 0xfffff, type 0x1b
Jul 16 00:22:06 steelhullketch kernel: = DPL 0, pres 1, def32 1, gran 1
Jul 16 00:22:06 steelhullketch kernel: processor eflags	= IOPL = 0
Jul 16 00:22:06 steelhullketch kernel: current process		= 1126 (chrome)
Jul 16 00:22:06 steelhullketch kernel: trap number		= 3
Jul 16 00:22:06 steelhullketch kernel: panic: breakpoint instruction fault
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0
Jul 16 00:22:06 steelhullketch kernel: KDB: enter: panic
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0; apic id = 00
Jul 16 00:22:06 steelhullketch kernel: instruction pointer	= 0x20:0xc0aecf2d
Jul 16 00:22:06 steelhullketch kernel: stack pointer	        = 0x28:0xe854f42c
Jul 16 00:22:06 steelhullketch kernel: frame pointer	        = 0x28:0xe854f438
Jul 16 00:22:06 steelhullketch kernel: code segment		= base rx0, limit 0xfffff, type 0x1b
Jul 16 00:22:06 steelhullketch kernel: = DPL 0, pres 1, def32 1, gran 1
Jul 16 00:22:06 steelhullketch kernel: processor eflags	= IOPL = 0
Jul 16 00:22:06 steelhullketch kernel: current process		= 1126 (chrome)
Jul 16 00:22:06 steelhullketch kernel: trap number		= 3
Jul 16 00:22:06 steelhullketch kernel: panic: breakpoint instruction fault
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0
Jul 16 00:22:06 steelhullketch kernel: KDB: enter: panic
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0; apic id = 00
Jul 16 00:22:06 steelhullketch kernel: instruction pointer	= 0x20:0xc0aecf2d
Jul 16 00:22:06 steelhullketch kernel: stack pointer	        = 0x28:0xe854f1f4
Jul 16 00:22:06 steelhullketch kernel: frame pointer	        = 0x28:0xe854f200
Jul 16 00:22:06 steelhullketch kernel: code segment		= base rx0, limit 0xfffff, type 0x1b
Jul 16 00:22:06 steelhullketch kernel: = DPL 0, pres 1, def32 1, gran 1
Jul 16 00:22:06 steelhullketch kernel: processor eflags	= IOPL = 0
Jul 16 00:22:06 steelhullketch kernel: current process		= 1126 (chrome)
Jul 16 00:22:06 steelhullketch kernel: trap number		= 3
Jul 16 00:22:06 steelhullketch kernel: panic: breakpoint instruction fault
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0
Jul 16 00:22:06 steelhullketch kernel: KDB: enter: panic
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0; apic id = 00
Jul 16 00:22:06 steelhullketch kernel: instruction pointer	= 0x20:0xc0aecf2d
Jul 16 00:22:06 steelhullketch kernel: stack pointer	        = 0x28:0xe854efbc
Jul 16 00:22:06 steelhullketch kernel: frame pointer	        = 0x28:0xe854efc8
Jul 16 00:22:06 steelhullketch kernel: code segment		= base rx0, limit 0xfffff, type 0x1b
Jul 16 00:22:06 steelhullketch kernel: = DPL 0, pres 1, def32 1, gran 1
Jul 16 00:22:06 steelhullketch kernel: processor eflags	= IOPL = 0
Jul 16 00:22:06 steelhullketch kernel: current process		= 1126 (chrome)
Jul 16 00:22:06 steelhullketch kernel: trap number		= 3
Jul 16 00:22:06 steelhullketch kernel: panic: breakpoint instruction fault
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0
Jul 16 00:22:06 steelhullketch kernel: KDB: enter: panic
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0; apic id = 00
Jul 16 00:22:06 steelhullketch kernel: instruction pointer	= 0x20:0xc0aecf2d
Jul 16 00:22:06 steelhullketch kernel: stack pointer	        = 0x28:0xe854ed84
Jul 16 00:22:06 steelhullketch kernel: frame pointer	        = 0x28:0xe854ed90
Jul 16 00:22:06 steelhullketch kernel: code segment		= base rx0, limit 0xfffff, type 0x1b
Jul 16 00:22:06 steelhullketch kernel: = DPL 0, pres 1, def32 1, gran 1
Jul 16 00:22:06 steelhullketch kernel: processor eflags	= IOPL = 0
Jul 16 00:22:06 steelhullketch kernel: current process		= 1126 (chrome)
Jul 16 00:22:06 steelhullketch kernel: trap number		= 3
Jul 16 00:22:06 steelhullketch kernel: panic: breakpoint instruction fault
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0
Jul 16 00:22:06 steelhullketch kernel: KDB: enter: panic
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0; apic id = 00
Jul 16 00:22:06 steelhullketch kernel: instruction pointer	= 0x20:0xc0aecf2d
Jul 16 00:22:06 steelhullketch kernel: stack pointer	        = 0x28:0xe854eb4c
Jul 16 00:22:06 steelhullketch kernel: frame pointer	        = 0x28:0xe854eb58
Jul 16 00:22:06 steelhullketch kernel: code segment		= base rx0, limit 0xfffff, type 0x1b
Jul 16 00:22:06 steelhullketch kernel: = DPL 0, pres 1, def32 1, gran 1
Jul 16 00:22:06 steelhullketch kernel: processor eflags	= IOPL = 0
Jul 16 00:22:06 steelhullketch kernel: current process		= 1126 (chrome)
Jul 16 00:22:06 steelhullketch kernel: trap number		= 3
Jul 16 00:22:06 steelhullketch kernel: panic: breakpoint instruction fault
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0
Jul 16 00:22:06 steelhullketch kernel: KDB: enter: panic
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0; apic id = 00
Jul 16 00:22:06 steelhullketch kernel: instruction pointer	= 0x20:0xc0aecf2d
Jul 16 00:22:06 steelhullketch kernel: stack pointer	        = 0x28:0xe854e914
Jul 16 00:22:06 steelhullketch kernel: frame pointer	        = 0x28:0xe854e920
Jul 16 00:22:06 steelhullketch kernel: code segment		= base rx0, limit 0xfffff, type 0x1b
Jul 16 00:22:06 steelhullketch kernel: = DPL 0, pres 1, def32 1, gran 1
Jul 16 00:22:06 steelhullketch kernel: processor eflags	= IOPL = 0
Jul 16 00:22:06 steelhullketch kernel: current process		= 1126 (chrome)
Jul 16 00:22:06 steelhullketch kernel: trap number		= 3
Jul 16 00:22:06 steelhullketch kernel: panic: breakpoint instruction fault
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0
Jul 16 00:22:06 steelhullketch kernel: KDB: enter: panic
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0; apic id = 00
Jul 16 00:22:06 steelhullketch kernel: instruction pointer	= 0x20:0xc0aecf2d
Jul 16 00:22:06 steelhullketch kernel: stack pointer	        = 0x28:0xe854e6dc
Jul 16 00:22:06 steelhullketch kernel: frame pointer	        = 0x28:0xe854e6e8
Jul 16 00:22:06 steelhullketch kernel: code segment		= base rx0, limit 0xfffff, type 0x1b
Jul 16 00:22:06 steelhullketch kernel: = DPL 0, pres 1, def32 1, gran 1
Jul 16 00:22:06 steelhullketch kernel: processor eflags	= IOPL = 0
Jul 16 00:22:06 steelhullketch kernel: current process		= 1126 (chrome)
Jul 16 00:22:06 steelhullketch kernel: trap number		= 3
Jul 16 00:22:06 steelhullketch kernel: panic: breakpoint instruction fault
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0
Jul 16 00:22:06 steelhullketch kernel: KDB: enter: panic
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: Fatal double fault:
Jul 16 00:22:06 steelhullketch kernel: eip = 0xc0aef077
Jul 16 00:22:06 steelhullketch kernel: esp = 0xe854dff4
Jul 16 00:22:06 steelhullketch kernel: ebp = 0xe854e09c
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0; apic id = 00
Jul 16 00:22:06 steelhullketch kernel: panic: double fault
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0
Jul 16 00:22:06 steelhullketch kernel: KDB: enter: panic
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0; apic id = 00
Jul 16 00:22:06 steelhullketch kernel: instruction pointer	= 0x20:0xc0aecf2d
Jul 16 00:22:06 steelhullketch kernel: stack pointer	        = 0x28:0xc140ec7c
Jul 16 00:22:06 steelhullketch kernel: frame pointer	        = 0x28:0xc140ec88
Jul 16 00:22:06 steelhullketch kernel: code segment		= base rx0, limit 0xfffff, type 0x1b
Jul 16 00:22:06 steelhullketch kernel: = DPL 0, pres 1, def32 1, gran 1
Jul 16 00:22:06 steelhullketch kernel: processor eflags	= nested task, IOPL = 0
Jul 16 00:22:06 steelhullketch kernel: current process		= 1126 (chrome)
Jul 16 00:22:06 steelhullketch kernel: trap number		= 3
Jul 16 00:22:06 steelhullketch kernel: panic: breakpoint instruction fault
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0
Jul 16 00:22:06 steelhullketch kernel: KDB: enter: panic
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0; apic id = 00
Jul 16 00:22:06 steelhullketch kernel: instruction pointer	= 0x20:0xc0aecf2d
Jul 16 00:22:06 steelhullketch kernel: stack pointer	        = 0x28:0xc140ea44
Jul 16 00:22:06 steelhullketch kernel: frame pointer	        = 0x28:0xc140ea50
Jul 16 00:22:06 steelhullketch kernel: code segment		= base rx0, limit 0xfffff, type 0x1b
Jul 16 00:22:06 steelhullketch kernel: = DPL 0, pres 1, def32 1, gran 1
Jul 16 00:22:06 steelhullketch kernel: processor eflags	= IOPL = 0
Jul 16 00:22:06 steelhullketch kernel: current process		= 1126 (chrome)
Jul 16 00:22:06 steelhullketch kernel: trap number		= 3
Jul 16 00:22:06 steelhullketch kernel: panic: breakpoint instruction fault
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0
Jul 16 00:22:06 steelhullketch kernel: KDB: enter: panic
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0; apic id = 00
Jul 16 00:22:06 steelhullketch kernel: instruction pointer	= 0x20:0xc0aecf2d
Jul 16 00:22:06 steelhullketch kernel: stack pointer	        = 0x28:0xc140e80c
Jul 16 00:22:06 steelhullketch kernel: frame pointer	        = 0x28:0xc140e818
Jul 16 00:22:06 steelhullketch kernel: code segment		= base rx0, limit 0xfffff, type 0x1b
Jul 16 00:22:06 steelhullketch kernel: = DPL 0, pres 1, def32 1, gran 1
Jul 16 00:22:06 steelhullketch kernel: processor eflags	= IOPL = 0
Jul 16 00:22:06 steelhullketch kernel: current process		= 1126 (chrome)
Jul 16 00:22:06 steelhullketch kernel: trap number		= 3
Jul 16 00:22:06 steelhullketch kernel: panic: breakpoint instruction fault
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0
Jul 16 00:22:06 steelhullketch kernel: KDB: enter: panic
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0; apic id = 00
Jul 16 00:22:06 steelhullketch kernel: instruction pointer	= 0x20:0xc0aecf2d
Jul 16 00:22:06 steelhullketch kernel: stack pointer	        = 0x28:0xc140e5d4
Jul 16 00:22:06 steelhullketch kernel: frame pointer	        = 0x28:0xc140e5e0
Jul 16 00:22:06 steelhullketch kernel: code segment		= base rx0, limit 0xfffff, type 0x1b
Jul 16 00:22:06 steelhullketch kernel: = DPL 0, pres 1, def32 1, gran 1
Jul 16 00:22:06 steelhullketch kernel: processor eflags	= IOPL = 0
Jul 16 00:22:06 steelhullketch kernel: current process		= 1126 (chrome)
Jul 16 00:22:06 steelhullketch kernel: trap number		= 3
Jul 16 00:22:06 steelhullketch kernel: panic: breakpoint instruction fault
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0
Jul 16 00:22:06 steelhullketch kernel: KDB: enter: panic
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0; apic id = 00
Jul 16 00:22:06 steelhullketch kernel: instruction pointer	= 0x20:0xc0aecf2d
Jul 16 00:22:06 steelhullketch kernel: stack pointer	        = 0x28:0xc140e39c
Jul 16 00:22:06 steelhullketch kernel: frame pointer	        = 0x28:0xc140e3a8
Jul 16 00:22:06 steelhullketch kernel: code segment		= base rx0, limit 0xfffff, type 0x1b
Jul 16 00:22:06 steelhullketch kernel: = DPL 0, pres 1, def32 1, gran 1
Jul 16 00:22:06 steelhullketch kernel: processor eflags	= IOPL = 0
Jul 16 00:22:06 steelhullketch kernel: current process		= 1126 (chrome)
Jul 16 00:22:06 steelhullketch kernel: trap number		= 3
Jul 16 00:22:06 steelhullketch kernel: panic: breakpoint instruction fault
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0
Jul 16 00:22:06 steelhullketch kernel: KDB: enter: panic
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0; apic id = 00
Jul 16 00:22:06 steelhullketch kernel: instruction pointer	= 0x20:0xc0aecf2d
Jul 16 00:22:06 steelhullketch kernel: stack pointer	        = 0x28:0xc140e164
Jul 16 00:22:06 steelhullketch kernel: frame pointer	        = 0x28:0xc140e170
Jul 16 00:22:06 steelhullketch kernel: code segment		= base rx0, limit 0xfffff, type 0x1b
Jul 16 00:22:06 steelhullketch kernel: = DPL 0, pres 1, def32 1, gran 1
Jul 16 00:22:06 steelhullketch kernel: processor eflags	= IOPL = 0
Jul 16 00:22:06 steelhullketch kernel: current process		= 1126 (chrome)
Jul 16 00:22:06 steelhullketch kernel: trap number		= 3
Jul 16 00:22:06 steelhullketch kernel: panic: breakpoint instruction fault
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0
Jul 16 00:22:06 steelhullketch kernel: KDB: enter: panic
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0; apic id = 00
Jul 16 00:22:06 steelhullketch kernel: instruction pointer	= 0x20:0xc0aecf2d
Jul 16 00:22:06 steelhullketch kernel: stack pointer	        = 0x28:0xc140df2c
Jul 16 00:22:06 steelhullketch kernel: frame pointer	        = 0x28:0xc140df38
Jul 16 00:22:06 steelhullketch kernel: code segment		= base rx0, limit 0xfffff, type 0x1b
Jul 16 00:22:06 steelhullketch kernel: = DPL 0, pres 1, def32 1, gran 1
Jul 16 00:22:06 steelhullketch kernel: processor eflags	= IOPL = 0
Jul 16 00:22:06 steelhullketch kernel: current process		= 1126 (chrome)
Jul 16 00:22:06 steelhullketch kernel: trap number		= 3
Jul 16 00:22:06 steelhullketch kernel: panic: breakpoint instruction fault
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0
Jul 16 00:22:06 steelhullketch kernel: KDB: enter: panic
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0; apic id = 00
Jul 16 00:22:06 steelhullketch kernel: instruction pointer	= 0x20:0xc0aecf2d
Jul 16 00:22:06 steelhullketch kernel: stack pointer	        = 0x28:0xc140dcf4
Jul 16 00:22:06 steelhullketch kernel: frame pointer	        = 0x28:0xc140dd00
Jul 16 00:22:06 steelhullketch kernel: code segment		= base rx0, limit 0xfffff, type 0x1b
Jul 16 00:22:06 steelhullketch kernel: = DPL 0, pres 1, def32 1, gran 1
Jul 16 00:22:06 steelhullketch kernel: processor eflags	= IOPL = 0
Jul 16 00:22:06 steelhullketch kernel: current process		= 1126 (chrome)
Jul 16 00:22:06 steelhullketch kernel: trap number		= 3
Jul 16 00:22:06 steelhullketch kernel: panic: breakpoint instruction fault
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0
Jul 16 00:22:06 steelhullketch kernel: KDB: enter: panic
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: 
Jul 16 00:22:06 steelhullketch kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0; apic id = 00
Jul 16 00:22:06 steelhullketch kernel: instruction pointer	= 0x20:0xc0aecf2d
Jul 16 00:22:06 steelhullketch kernel: stack pointer	        = 0x28:0xc140dabc
Jul 16 00:22:06 steelhullketch kernel: frame pointer	        = 0x28:0xc140dac8
Jul 16 00:22:06 steelhullketch kernel: code segment		= base rx0, limit 0xfffff, type 0x1b
Jul 16 00:22:06 steelhullketch kernel: = DPL 0, pres 1, def32 1, gran 1
Jul 16 00:22:06 steelhullketch kernel: processor eflags	= IOPL = 0
Jul 16 00:22:06 steelhullketch kernel: current process		= 1126 (chrome)
Jul 16 00:22:06 steelhullketch kernel: trap number		= 3
Jul 16 00:22:06 steelhullketch kernel: panic: breakpoint instruction fault
Jul 16 00:22:06 steelhullketch kernel: cpuid = 0
Jul 16 00:22:06 steelhullketch kernel: KDB: enter: panic

Reboot process starts here ...

How-To-Repeat: Have not determined how to repeat panic.

Comment 1 Mark Linimon freebsd_committer

2013-11-17 23:58:37 UTC

Responsible Changed
From-To: freebsd-i386->freebsd-bugs

reclassify.

Comment 2 Ed Maste freebsd_committer

2015-06-15 13:17:46 UTC

Is this still reproducible on 10.1 or stable/10 for you?

Comment 3 Eitan Adler freebsd_committer

2018-05-20 23:50:45 UTC

For bugs matching the following conditions:
- Status == In Progress
- Assignee == "bugs@FreeBSD.org"
- Last Modified Year <= 2017

Do
- Set Status to "Open"

Comment 4 Carlos J. Puga Medina freebsd_committer

2018-08-16 08:12:24 UTC

Now we have chromium 68 plus FreeBSD 10.0-CURRENT is no longer supported. I think it's time to close this PR.