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Date:      Sun, 3 Dec 1995 22:28:20 +0200
From:      Heikki Suonsivu <hsu@clinet.fi>
To:        FreeBSD-gnats-submit@freebsd.org
Subject:   kern/863: panic on kernel page fault, NULL curproc
Message-ID:  <199512032028.WAA11615@katiska.clinet.fi>
Resent-Message-ID: <199512032030.MAA21929@freefall.freebsd.org>

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>Number:         863
>Category:       kern
>Synopsis:       panic on kernel page fault, NULL curproc
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Dec  3 12:30:04 PST 1995
>Last-Modified:
>Originator:     Heikki Suonsivu
>Organization:
Clinet, Espoo, Finland
>Release:        FreeBSD 2.2-CURRENT i386
>Environment:

Dec  3 19:02:20 katiska /kernel: FreeBSD 2.2-CURRENT #2: Sun Nov 26 06:35:44 EET 1995
Dec  3 19:02:20 katiska /kernel:     hsu@katiska.clinet.fi:/usr/current/src/sys/compile/CLINETSERVER
Dec  3 19:02:20 katiska /kernel: CPU: 90-MHz Pentium 735\90 (Pentium-class CPU)
Dec  3 19:02:20 katiska /kernel:   Origin = "GenuineIntel"  Id = 0x524  Stepping=4
Dec  3 19:02:20 katiska /kernel:   Features=0x1bf<FPU,VME,PSE,MCE,CX8,APIC>
Dec  3 19:02:19 katiska /kernel: real memory  = 67108864 (65536K bytes)
Dec  3 19:02:19 katiska /kernel: avail memory = 62394368 (60932K bytes)
Dec  3 19:02:19 katiska /kernel: Probing for devices on the ISA bus:
Dec  3 19:02:19 katiska /kernel: vt0 at 0x60-0x6f irq 1 on motherboard
Dec  3 19:02:19 katiska /kernel: vt0: tvga 8900cl, 80/132 col, mono, 8 scr, mf2-kbd, [R3.20-b24]
Dec  3 19:02:19 katiska /kernel: ed0 at 0x280-0x29f irq 5 maddr 0xd8000 msize 16384 on isa
Dec  3 19:02:20 katiska /kernel: ed0: address 00:00:c0:cd:b9:a3, type WD8013EPC (16 bit) 
Dec  3 19:02:20 katiska /kernel: lpt0 at 0x378-0x37f irq 7 on isa
Dec  3 19:02:20 katiska /kernel: lpt0: Interrupt-driven port
Dec  3 19:02:20 katiska /kernel: lp0: TCP/IP capable interface
Dec  3 19:02:20 katiska /kernel: lpt1 not found at 0xffffffff
Dec  3 19:02:20 katiska /kernel: lpt2 not found at 0xffffffff
Dec  3 19:02:20 katiska /kernel: sio0 at 0x3f8-0x3ff irq 4 on isa
Dec  3 19:02:20 katiska /kernel: sio0: type 16550A
Dec  3 19:02:20 katiska /kernel: sio1 at 0x2f8-0x2ff irq 3 on isa
Dec  3 19:02:20 katiska /kernel: sio1: type 16550A
Dec  3 19:02:20 katiska /kernel: sio2 not found at 0x3e8
Dec  3 19:02:20 katiska /kernel: sio3 not found at 0x2e8
Dec  3 19:02:20 katiska /kernel: pca0 on isa
Dec  3 19:02:20 katiska /kernel: pca0: PC speaker audio driver
Dec  3 19:02:20 katiska /kernel: bt0 not found at 0x330
Dec  3 19:02:20 katiska /kernel: aha0 not found at 0x330
Dec  3 19:02:20 katiska /kernel: wdc0 not found at 0x1f0
Dec  3 19:02:20 katiska /kernel: fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
Dec  3 19:02:20 katiska /kernel: fdc0: NEC 72065B
Dec  3 19:02:20 katiska /kernel: fd0: 1.44MB 3.5in
Dec  3 19:02:21 katiska /kernel: mcd0: timeout getting status
Dec  3 19:02:21 katiska /kernel: mcd0 not found at 0x300
Dec  3 19:02:21 katiska /kernel: npx0 on motherboard
Dec  3 19:02:21 katiska /kernel: npx0: INT 16 interface
Dec  3 19:02:21 katiska /kernel: matcdc0 not found at 0xffffffff
Dec  3 19:02:21 katiska /kernel: matcdc1 not found at 0xffffffff
Dec  3 19:02:21 katiska /kernel: matcdc2 not found at 0xffffffff
Dec  3 19:02:21 katiska /kernel: matcdc3 not found at 0xffffffff
Dec  3 19:02:21 katiska /kernel: Probing for devices on the PCI bus:
Dec  3 19:02:21 katiska /kernel: chip0 <Intel 82434NX (Neptune) PCI cache memory controller> rev 17 on pci0:0
Dec  3 19:02:21 katiska /kernel: chip1 <Intel 82378IB PCI-ISA bridge> rev 67 on pci0:2
Dec  3 19:02:21 katiska /kernel: ncr0 <ncr 53c810 scsi> rev 2 int a irq 9 on pci0:12
Dec  3 19:02:21 katiska /kernel: ncr0 waiting for scsi devices to settle
Dec  3 19:02:21 katiska /kernel: (ncr0:0:0): "SEAGATE ST15230N 0298" type 0 fixed SCSI 2
Dec  3 19:02:21 katiska /kernel: sd0(ncr0:0:0): Direct-Access 
Dec  3 19:02:21 katiska /kernel: sd0(ncr0:0:0): FAST SCSI-2 100ns (10 Mb/sec) offset 8.
Dec  3 19:02:21 katiska /kernel: 4095MB (8386733 512 byte sectors)
Dec  3 19:02:21 katiska /kernel: sd0(ncr0:0:0): with 3992 cyls, 19 heads, and an average 110 sectors/track
Dec  3 19:02:21 katiska /kernel: (ncr0:3:0): "SEAGATE ST31200N 9348" type 0 fixed SCSI 2
Dec  3 19:02:22 katiska /kernel: sd3(ncr0:3:0): Direct-Access 
Dec  3 19:02:22 katiska /kernel: sd3(ncr0:3:0): FAST SCSI-2 100ns (10 Mb/sec) offset 8.
Dec  3 19:02:22 katiska /kernel: 1011MB (2072435 512 byte sectors)
Dec  3 19:02:22 katiska /kernel: sd3(ncr0:3:0): with 2700 cyls, 9 heads, and an average 85 sectors/track
Dec  3 19:02:22 katiska /kernel: (ncr0:4:0): "HP C1533A 9503" type 1 removable SCSI 2
Dec  3 19:02:22 katiska /kernel: st4(ncr0:4:0): Sequential-Access 
Dec  3 19:02:22 katiska /kernel: st4(ncr0:4:0): FAST SCSI-2 100ns (10 Mb/sec) offset 8.
Dec  3 19:02:22 katiska /kernel: density code 0x24, variable blocks, write-enabled
Dec  3 19:02:22 katiska /kernel: ncr1 <ncr 53c810 scsi> rev 1 int a irq 9 on pci0:14
Dec  3 19:02:22 katiska /kernel: ncr1 waiting for scsi devices to settle
Dec  3 19:02:22 katiska /kernel: (ncr1:3:0): "SEAGATE ST15230N 0168" type 0 fixed SCSI 2
Dec  3 19:02:22 katiska /kernel: sd7(ncr1:3:0): Direct-Access 
Dec  3 19:02:22 katiska /kernel: sd7(ncr1:3:0): FAST SCSI-2 100ns (10 Mb/sec) offset 8.
Dec  3 19:02:22 katiska /kernel: 4095MB (8386733 512 byte sectors)
Dec  3 19:02:22 katiska /kernel: sd7(ncr1:3:0): with 3992 cyls, 19 heads, and an average 110 sectors/track
Dec  3 19:02:22 katiska /kernel: changing root device to sd0a
Dec  3 19:02:22 katiska /kernel: new masks: bio c0000240, tty c00300ba, net c00300ba
Dec  3 19:02:22 katiska /kernel: WARNING: / was not properly dismounted.
Dec  3 19:02:20 katiska /kernel: FreeBSD 2.2-CURRENT #2: Sun Nov 26 06:35:44 EET 1995
Dec  3 19:02:20 katiska /kernel:     hsu@katiska.clinet.fi:/usr/current/src/sys/compile/CLINETSERVER
Dec  3 19:02:20 katiska /kernel: CPU: 90-MHz Pentium 735\90 (Pentium-class CPU)
Dec  3 19:02:20 katiska /kernel:   Origin = "GenuineIntel"  Id = 0x524  Stepping=4
Dec  3 19:02:20 katiska /kernel:   Features=0x1bf<FPU,VME,PSE,MCE,CX8,APIC>
Dec  3 19:02:19 katiska /kernel: real memory  = 67108864 (65536K bytes)
Dec  3 19:02:19 katiska /kernel: avail memory = 62394368 (60932K bytes)
Dec  3 19:02:19 katiska /kernel: Probing for devices on the ISA bus:
Dec  3 19:02:19 katiska /kernel: vt0 at 0x60-0x6f irq 1 on motherboard
Dec  3 19:02:19 katiska /kernel: vt0: tvga 8900cl, 80/132 col, mono, 8 scr, mf2-kbd, [R3.20-b24]
Dec  3 19:02:19 katiska /kernel: ed0 at 0x280-0x29f irq 5 maddr 0xd8000 msize 16384 on isa
Dec  3 19:02:20 katiska /kernel: ed0: address 00:00:c0:cd:b9:a3, type WD8013EPC (16 bit) 
Dec  3 19:02:20 katiska /kernel: lpt0 at 0x378-0x37f irq 7 on isa
Dec  3 19:02:20 katiska /kernel: lpt0: Interrupt-driven port
Dec  3 19:02:20 katiska /kernel: lp0: TCP/IP capable interface
Dec  3 19:02:20 katiska /kernel: lpt1 not found at 0xffffffff
Dec  3 19:02:20 katiska /kernel: lpt2 not found at 0xffffffff
Dec  3 19:02:20 katiska /kernel: sio0 at 0x3f8-0x3ff irq 4 on isa
Dec  3 19:02:20 katiska /kernel: sio0: type 16550A
Dec  3 19:02:20 katiska /kernel: sio1 at 0x2f8-0x2ff irq 3 on isa
Dec  3 19:02:20 katiska /kernel: sio1: type 16550A
Dec  3 19:02:20 katiska /kernel: sio2 not found at 0x3e8
Dec  3 19:02:20 katiska /kernel: sio3 not found at 0x2e8
Dec  3 19:02:20 katiska /kernel: pca0 on isa
Dec  3 19:02:20 katiska /kernel: pca0: PC speaker audio driver
Dec  3 19:02:20 katiska /kernel: bt0 not found at 0x330
Dec  3 19:02:20 katiska /kernel: aha0 not found at 0x330
Dec  3 19:02:20 katiska /kernel: wdc0 not found at 0x1f0
Dec  3 19:02:20 katiska /kernel: fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
Dec  3 19:02:20 katiska /kernel: fdc0: NEC 72065B
Dec  3 19:02:20 katiska /kernel: fd0: 1.44MB 3.5in
Dec  3 19:02:21 katiska /kernel: mcd0: timeout getting status
Dec  3 19:02:21 katiska /kernel: mcd0 not found at 0x300
Dec  3 19:02:21 katiska /kernel: npx0 on motherboard
Dec  3 19:02:21 katiska /kernel: npx0: INT 16 interface
Dec  3 19:02:21 katiska /kernel: matcdc0 not found at 0xffffffff
Dec  3 19:02:21 katiska /kernel: matcdc1 not found at 0xffffffff
Dec  3 19:02:21 katiska /kernel: matcdc2 not found at 0xffffffff
Dec  3 19:02:21 katiska /kernel: matcdc3 not found at 0xffffffff
Dec  3 19:02:21 katiska /kernel: Probing for devices on the PCI bus:
Dec  3 19:02:21 katiska /kernel: chip0 <Intel 82434NX (Neptune) PCI cache memory controller> rev 17 on pci0:0
Dec  3 19:02:21 katiska /kernel: chip1 <Intel 82378IB PCI-ISA bridge> rev 67 on pci0:2
Dec  3 19:02:21 katiska /kernel: ncr0 <ncr 53c810 scsi> rev 2 int a irq 9 on pci0:12
Dec  3 19:02:21 katiska /kernel: ncr0 waiting for scsi devices to settle
Dec  3 19:02:21 katiska /kernel: (ncr0:0:0): "SEAGATE ST15230N 0298" type 0 fixed SCSI 2
Dec  3 19:02:21 katiska /kernel: sd0(ncr0:0:0): Direct-Access 
Dec  3 19:02:21 katiska /kernel: sd0(ncr0:0:0): FAST SCSI-2 100ns (10 Mb/sec) offset 8.
Dec  3 19:02:21 katiska /kernel: 4095MB (8386733 512 byte sectors)
Dec  3 19:02:21 katiska /kernel: sd0(ncr0:0:0): with 3992 cyls, 19 heads, and an average 110 sectors/track
Dec  3 19:02:21 katiska /kernel: (ncr0:3:0): "SEAGATE ST31200N 9348" type 0 fixed SCSI 2
Dec  3 19:02:22 katiska /kernel: sd3(ncr0:3:0): Direct-Access 
Dec  3 19:02:22 katiska /kernel: sd3(ncr0:3:0): FAST SCSI-2 100ns (10 Mb/sec) offset 8.
Dec  3 19:02:22 katiska /kernel: 1011MB (2072435 512 byte sectors)
Dec  3 19:02:22 katiska /kernel: sd3(ncr0:3:0): with 2700 cyls, 9 heads, and an average 85 sectors/track
Dec  3 19:02:22 katiska /kernel: (ncr0:4:0): "HP C1533A 9503" type 1 removable SCSI 2
Dec  3 19:02:22 katiska /kernel: st4(ncr0:4:0): Sequential-Access 
Dec  3 19:02:22 katiska /kernel: st4(ncr0:4:0): FAST SCSI-2 100ns (10 Mb/sec) offset 8.
Dec  3 19:02:22 katiska /kernel: density code 0x24, variable blocks, write-enabled
Dec  3 19:02:22 katiska /kernel: ncr1 <ncr 53c810 scsi> rev 1 int a irq 9 on pci0:14
Dec  3 19:02:22 katiska /kernel: ncr1 waiting for scsi devices to settle
Dec  3 19:02:22 katiska /kernel: (ncr1:3:0): "SEAGATE ST15230N 0168" type 0 fixed SCSI 2
Dec  3 19:02:22 katiska /kernel: sd7(ncr1:3:0): Direct-Access 
Dec  3 19:02:22 katiska /kernel: sd7(ncr1:3:0): FAST SCSI-2 100ns (10 Mb/sec) offset 8.
Dec  3 19:02:22 katiska /kernel: 4095MB (8386733 512 byte sectors)
Dec  3 19:02:22 katiska /kernel: sd7(ncr1:3:0): with 3992 cyls, 19 heads, and an average 110 sectors/track
Dec  3 19:02:22 katiska /kernel: changing root device to sd0a
Dec  3 19:02:22 katiska /kernel: new masks: bio c0000240, tty c00300ba, net c00300ba
Dec  3 19:02:22 katiska /kernel: WARNING: / was not properly dismounted.

Runs news, httpd and users.  innd has been compiled with mmap on.

>Description:

	Self-explanatory; crash dumps are available as
ftp://clinet.fi/pub/FreeBSD/crashdumps/*.37.gz

Current directory is /var/crash/
Reading symbol data from /var/crash/kernel.37...done.
IdlePTD 26d000
panic: m_copydata
current pcb at 21bd44
Reading in symbols for ../../i386/i386/machdep.c...done.
(kgdb) up
Reading in symbols for ../../kern/subr_prf.c...done.
#1  0xf0115367 in panic (fmt=(char *) 0xf01cfcae "page fault") (../../kern/subr_prf.c line 124)
124	(../../kern/subr_prf.c)
(kgdb) up
Reading in symbols for ../../i386/i386/trap.c...done.
#2  0xf01d07ae in trap_fatal (frame=(struct trapframe *) 0xf0201d18) (../../i386/i386/trap.c line 744)
744	(../../i386/i386/trap.c)
(kgdb) up
#3  0xf01d0320 in trap_pfault (frame=(struct trapframe *) 0xf0201d18, usermode=0) (../../i386/i386/trap.c line 666)
666	(../../i386/i386/trap.c)
(kgdb) up
#4  0xf01cffbf in trap (frame={tf_es = 16, tf_ds = 16, tf_edi = -1, tf_esi = -218328628, tf_ebp = -266330780, tf_isp = -267315682, tf_ebx = 0, tf_edx = 1073610751, tf_ecx = 0, tf_eax = 1048592, tf_trapno = 12, tf_err = 0, tf_eip = -267315682, tf_cs = 8, tf_eflags = 66118, tf_esp = -218328628, tf_ss = -1073610752}) (../../i386/i386/trap.c line 307)
307	(../../i386/i386/trap.c)
(kgdb) directory /usr/src/sys/i386/conf
Source directories searched: /var/crash:/usr/src/sys/i386/conf
(kgdb) up
#5  0xf01c5b3d in exception:calltrap ()
(kgdb) down
#4  0xf01cffbf in trap (frame={tf_es = 16, tf_ds = 16, tf_edi = -1, tf_esi = -218328628, tf_ebp = -266330780, tf_isp = -267315682, tf_ebx = 0, tf_edx = 1073610751, tf_ecx = 0, tf_eax = 1048592, tf_trapno = 12, tf_err = 0, tf_eip = -267315682, tf_cs = 8, tf_eflags = 66118, tf_esp = -218328628, tf_ss = -1073610752}) (../../i386/i386/trap.c line 307)
(kgdb) down
#3  0xf01d0320 in trap_pfault (frame=(struct trapframe *) 0xf0201d18, usermode=0) (../../i386/i386/trap.c line 666)
(kgdb) donw
Undefined command: "donw".
(kgdb) up
#4  0xf01cffbf in trap (frame={tf_es = 16, tf_ds = 16, tf_edi = -1, tf_esi = -218328628, tf_ebp = -266330780, tf_isp = -267315682, tf_ebx = 0, tf_edx = 1073610751, tf_ecx = 0, tf_eax = 1048592, tf_trapno = 12, tf_err = 0, tf_eip = -267315682, tf_cs = 8, tf_eflags = 66118, tf_esp = -218328628, tf_ss = -1073610752}) (../../i386/i386/trap.c line 307)
(kgdb) 
#5  0xf01c5b3d in exception:calltrap ()
(kgdb) 
Reading in symbols for ../../kern/kern_synch.c...done.
#6  0xf011161e in tsleep (ident=(void *) 0xf2fc91cc, priority=16, wmesg=(char *) 0xf0127e77 "biowait", timo=0) (../../kern/kern_synch.c line 301)
(kgdb) up
Reading in symbols for ../../kern/vfs_bio.c...done.
#7  0xf0127eaf in biowait (bp=(struct buf *) 0xf2fc91cc) (../../kern/vfs_bio.c line 1186)
(kgdb) down
#6  0xf011161e in tsleep (ident=(void *) 0xf2fc91cc, priority=16, wmesg=(char *) 0xf0127e77 "biowait", timo=0) (../../kern/kern_synch.c line 301)
(kgdb) 
#5  0xf01c5b3d in exception:calltrap ()
(kgdb) 
#4  0xf01cffbf in trap (frame={tf_es = 16, tf_ds = 16, tf_edi = -1, tf_esi = -218328628, tf_ebp = -266330780, tf_isp = -267315682, tf_ebx = 0, tf_edx = 1073610751, tf_ecx = 0, tf_eax = 1048592, tf_trapno = 12, tf_err = 0, tf_eip = -267315682, tf_cs = 8, tf_eflags = 66118, tf_esp = -218328628, tf_ss = -1073610752}) (../../i386/i386/trap.c line 307)
(kgdb) 
#3  0xf01d0320 in trap_pfault (frame=(struct trapframe *) 0xf0201d18, usermode=0) (../../i386/i386/trap.c line 666)
(kgdb) 
#2  0xf01d07ae in trap_fatal (frame=(struct trapframe *) 0xf0201d18) (../../i386/i386/trap.c line 744)
(kgdb) 
#1  0xf0115367 in panic (fmt=(char *) 0xf01cfcae "page fault") (../../kern/subr_prf.c line 124)
(kgdb) 
#0  boot (howto=260) (../../i386/i386/machdep.c line 925)
(kgdb) 
Bottom (i.e., innermost) frame selected; you cannot go down.
(kgdb) up
#1  0xf0115367 in panic (fmt=(char *) 0xf01cfcae "page fault") (../../kern/subr_prf.c line 124)
(kgdb) 
#2  0xf01d07ae in trap_fatal (frame=(struct trapframe *) 0xf0201d18) (../../i386/i386/trap.c line 744)
(kgdb) 
#3  0xf01d0320 in trap_pfault (frame=(struct trapframe *) 0xf0201d18, usermode=0) (../../i386/i386/trap.c line 666)
(kgdb) 
#4  0xf01cffbf in trap (frame={tf_es = 16, tf_ds = 16, tf_edi = -1, tf_esi = -218328628, tf_ebp = -266330780, tf_isp = -267315682, tf_ebx = 0, tf_edx = 1073610751, tf_ecx = 0, tf_eax = 1048592, tf_trapno = 12, tf_err = 0, tf_eip = -267315682, tf_cs = 8, tf_eflags = 66118, tf_esp = -218328628, tf_ss = -1073610752}) (../../i386/i386/trap.c line 307)
(kgdb) print frame
$1 = {tf_es = 16, tf_ds = 16, tf_edi = -1, tf_esi = -218328628, tf_ebp = -266330780, tf_isp = -267315682, tf_ebx = 0, tf_edx = 1073610751, tf_ecx = 0, tf_eax = 1048592, tf_trapno = 12, tf_err = 0, tf_eip = -267315682, tf_cs = 8, tf_eflags = 66118, tf_esp = -218328628, tf_ss = -1073610752}
(kgdb) up
#5  0xf01c5b3d in exception:calltrap ()
(kgdb) up
#6  0xf011161e in tsleep (ident=(void *) 0xf2fc91cc, priority=16, wmesg=(char *) 0xf0127e77 "biowait", timo=0) (../../kern/kern_synch.c line 301)
(kgdb) print sig
$2 = -218328628
(kgdb) print priority
$3 = 16
(kgdb) print timo
$4 = 0
(kgdb) print wmesg
$5 = (char *) 0xf0127e77 "biowait"
(kgdb) print priority
$6 = 16
(kgdb) print ident
$7 = (void *) 0xf2fc91cc
(kgdb) print *ident
$8 = void
(kgdb) up
#7  0xf0127eaf in biowait (bp=(struct buf *) 0xf2fc91cc) (../../kern/vfs_bio.c line 1186)
(kgdb) print bp->b_flags
$9 = 1049104
(kgdb) print /x bp->b_flags
$10 = 0x00100210
(kgdb) print s
$11 = -1073610752
(kgdb) print bp
$12 = (struct buf *) 0xf2fc91cc
(kgdb) print *bp
$13 = {b_hash = {le_next = 0x0, le_prev = 0xf024c168}, b_vnbufs = {le_next = 0x0, le_prev = 0xf140bfac}, b_freelist = {tqe_next = 0xf2ff897c, tqe_prev = 0xf021be9c}, b_actf = 0x0, b_actb = 0x0, b_act = {tqe_next = 0x0, tqe_prev = 0xf0fa9ed4}, b_proc = 0x0, b_flags = 1049104, b_qindex = 0, b_error = 0, b_bufsize = 8192, b_bcount = 8192, b_resid = 0, b_dev = 0x00000400, b_un = {b_addr = 0xf35cb000 "\200!\001"}, b_saveaddr = 0x0, b_lblkno = 65680, b_blkno = 65680, b_iodone = 0x0, b_iodone_chain = 0x0, b_vp = 0xf140bf80, b_dirtyoff = 0, b_dirtyend = 0, b_rcred = 0xffffffff, b_wcred = 0xffffffff, b_validoff = 0, b_validend = 0, b_pblkno = 65712, b_savekva = 0x0, b_driver1 = 0x0, b_driver2 = 0x0, b_spc = 0x0, b_cluster = {cluster_head = {tqh_first = 0xf2ff7ae0, tqh_last = 0xf2fc26f0}, cluster_entry = {tqe_next = 0xf2ff7ae0, tqe_prev = 0xf2fc26f0}}, b_pages = {0xf0331c14, 0xf02f2370, 0x0 <repeats 14 times>}, b_npages = 2}
(kgdb) list
1181	{
1182		int s;
1183	
1184		s = splbio();
1185		while ((bp->b_flags & B_DONE) == 0)
1186			tsleep(bp, PRIBIO, "biowait", 0);
1187		splx(s);
1188		if (bp->b_flags & B_EINTR) {
1189			bp->b_flags &= ~B_EINTR;
1190			return (EINTR);
(kgdb) down
#6  0xf011161e in tsleep (ident=(void *) 0xf2fc91cc, priority=16, wmesg=(char *) 0xf0127e77 "biowait", timo=0) (../../kern/kern_synch.c line 301)
(kgdb) list
296		char *wmesg;
297	{
298		register struct proc *p = curproc;
299		register struct slpque *qp;
300		register s;
301		int sig, catch = priority & PCATCH;
302	
303	#ifdef KTRACE
304		if (KTRPOINT(p, KTR_CSW))
305			ktrcsw(p->p_tracep, 1, 0);
(kgdb) print priority
$14 = 16
(kgdb) print p
$15 = (struct proc *) 0x0
(kgdb) print curproc
Reading in symbols for ../../kern/init_main.c...done.
$16 = (struct proc *) 0x0
(kgdb)

>How-To-Repeat:

	Don't know yet; this could be related to my previous report
shipped a couple of minutes ago (access to freed mbuf?).

>Fix:
	
	unknown

>Audit-Trail:
>Unformatted:



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