Hi,
I have been seeing vm_page_remove panic three times since
last week. During make world once, cvsup twice. It seems
reproducible.
Any clue?
Thanks
Tammy
snoopy# uname -a
FreeBSD snoopy.pochi.com 4.0-CURRENT FreeBSD 4.0-CURRENT #94: Sun Dec 19 10:40:05 PST
1999 [EMAIL PROTECTED]:/usr/src/sys/compile/SNOOPY i386
snoopy# gdb -k /usr/src/sys/compile/SNOOPY/kernel.debug /var/crash/vmcore.1
GNU gdb 4.18
Copyright 1998 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i386-unknown-freebsd"...
IdlePTD 3440640
initial pcb at 2c8300
panicstr: from debugger
panic messages:
---
panic: vm_page_remove(): page not found in hash
panic: from debugger
Uptime: 8h7m54s
dumping to dev #ad/0x30001, offset 393216
dump ata0: resetting devices .. done
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36
35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6
5 4 3 2 1
---
#0 boot (howto=260) at ../../kern/kern_shutdown.c:303
303 dumppcb.pcb_cr3 = rcr3();
(kgdb) where
#0 boot (howto=260) at ../../kern/kern_shutdown.c:303
#1 0xc015b4ed in panic (fmt=0xc0275294 "from debugger")
at ../../kern/kern_shutdown.c:553
#2 0xc012faa5 in db_panic (addr=-1071395625, have_addr=0, count=-1,
modif=0xc62e8b50 "") at ../../ddb/db_command.c:433
#3 0xc012fa45 in db_command (last_cmdp=0xc02a565c, cmd_table=0xc02a54bc,
aux_cmd_tablep=0xc02c46e4) at ../../ddb/db_command.c:333
#4 0xc012fb0a in db_command_loop () at ../../ddb/db_command.c:455
#5 0xc0131b9b in db_trap (type=3, code=0) at ../../ddb/db_trap.c:71
#6 0xc023ca7b in kdb_trap (type=3, code=0, regs=0xc62e8c54)
at ../../i386/i386/db_interface.c:157
#7 0xc024b3d0 in trap (frame={tf_fs = 16, tf_es = 16, tf_ds = 16,
tf_edi = 1074780922, tf_esi = 256, tf_ebp = -970027876,
tf_isp = -970027904, tf_ebx = -1071073184, tf_edx = 1073741824,
tf_ecx = 0, tf_eax = 18, tf_trapno = 3, tf_err = 0,
tf_eip = -1071395625, tf_cs = 8, tf_eflags = 582, tf_esp = -1071030625,
tf_ss = -1071137789}) at ../../i386/i386/trap.c:533
#8 0xc023ccd7 in Debugger (msg=0xc027bc03 "panic") at machine/cpufunc.h:64
#9 0xc015b4e4 in panic (
fmt=0xc028b860 "vm_page_remove(): page not found in hash")
at ../../kern/kern_shutdown.c:551
#10 0xc020cb53 in vm_page_remove (m=0xc04d05b0) at ../../vm/vm_page.c:448
#11 0xc020d194 in vm_page_free_toq (m=0xc04d05b0) at ../../vm/vm_page.c:1080
#12 0xc020cedb in vm_page_alloc (object=0xc6336900, pindex=3, page_req=0)
---Type <return> to continue, or q <return> to quit---
at ../../vm/vm_page.h:504
#13 0xc017e588 in allocbuf (bp=0xc1c90900, size=8192)
at ../../kern/vfs_bio.c:2375
#14 0xc017e17e in getblk (vp=0xc639d640, blkno=1, size=8192, slpflag=0,
slptimeo=0) at ../../kern/vfs_bio.c:2153
#15 0xc01f3554 in ffs_balloc (ap=0xc62e8e68) at ../../ufs/ffs/ffs_balloc.c:170
#16 0xc01fc1dd in ffs_write (ap=0xc62e8ea0) at vnode_if.h:1035
#17 0xc018cd4e in vn_write (fp=0xc09aa100, uio=0xc62e8eec, cred=0xc08fbd80,
flags=0, p=0xc5dca700) at vnode_if.h:363
#18 0xc0168515 in dofilewrite (p=0xc5dca700, fp=0xc09aa100, fd=9,
buf=0x843400c, nbyte=7461, offset=-1, flags=0) at ../../sys/file.h:156
#19 0xc016841b in write (p=0xc5dca700, uap=0xc62e8f80)
at ../../kern/sys_generic.c:297
#20 0xc024bc9e in syscall (frame={tf_fs = 47, tf_es = 47, tf_ds = 47,
tf_edi = 7461, tf_esi = 7461, tf_ebp = 139553084, tf_isp = -970027052,
tf_ebx = 137571960, tf_edx = 138625036, tf_ecx = 138616616, tf_eax = 4,
tf_trapno = 0, tf_err = 2, tf_eip = 136619508, tf_cs = 31,
tf_eflags = 518, tf_esp = 139553064, tf_ss = 47})
at ../../i386/i386/trap.c:1057
#21 0xc023d386 in Xint0x80_syscall ()
#22 0x819b12a in ?? ()
#23 0x81a793f in ?? ()
#24 0x81a2c37 in ?? ()
#25 0x8171a1c in ?? ()
---Type <return> to continue, or q <return> to quit---
#26 0x8171756 in ?? ()
#27 0x81a385a in ?? ()
#28 0x81a35ec in ?? ()
#29 0x8062f2b in ?? ()
#30 0x806341b in ?? ()
#31 0x8061f98 in ?? ()
#32 0x805e2d7 in ?? ()
#33 0x805dd7c in ?? ()
#34 0x81e8ed8 in ?? ()
#35 0x81e8cea in ?? ()
#36 0xbfbffc48 in ?? ()
#37 0x0 in ?? ()
(kgdb) frame 11
#11 0xc020d194 in vm_page_free_toq (m=0xc04d05b0) at ../../vm/vm_page.c:1080
1080 vm_page_remove(m);
(kgdb) p *m
$1 = {pageq = {tqe_next = 0xc04dd7b0, tqe_prev = 0xc02e1e10}, hnext = 0x0,
listq = {tqe_next = 0x0, tqe_prev = 0xc044a18c}, object = 0xc63c62a0,
pindex = 1, phys_addr = 59547648, queue = 0, flags = 0, pc = 10,
wire_count = 0, hold_count = 0, act_count = 0 '\000', busy = 0 '\000',
valid = 255 'ÿ', dirty = 0 '\000'}
(kgdb) down
#10 0xc020cb53 in vm_page_remove (m=0xc04d05b0) at ../../vm/vm_page.c:448
448 panic("vm_page_remove(): page not found in
hash");
(kgdb) p *bucket
Cannot access memory at address 0x0.
(kgdb) p bucket
$2 = (struct vm_page **) 0x0
(kgdb) p m
$3 = 0xc04d05b0
(kgdb) p m->object
$4 = 0xc63c62a0
(kgdb) p *m->object
$5 = {object_list = {tqe_next = 0xc63c69e0, tqe_prev = 0xc6365060},
shadow_head = {tqh_first = 0x0, tqh_last = 0xc63c62a8}, shadow_list = {
tqe_next = 0xf00, tqe_prev = 0x0}, memq = {tqh_first = 0xc044a080,
tqh_last = 0xc04d05bc}, generation = 3846, size = 3, ref_count = 0,
shadow_count = 0, hash_rand = -2516167, type = 2 '\002', flags = 0,
pg_color = 9, paging_in_progress = 0, resident_page_count = 2,
backing_object = 0xf00, backing_object_offset = 0, pager_object_list = {
tqe_next = 0x0, tqe_prev = 0xd00}, handle = 0xc634e6e0, un_pager = {vnp = {
vnp_size = 8200}, devp = {devp_pglist = {tqh_first = 0x2008,
tqh_last = 0x0}}, swp = {swp_bcount = 8200}}}
(kgdb) p m->pindex
$6 = 1
(kgdb) quit
snoopy# dmesg
Copyright (c) 1992-1999 The FreeBSD Project.
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
FreeBSD 4.0-CURRENT #94: Sun Dec 19 10:40:05 PST 1999
[EMAIL PROTECTED]:/usr/src/sys/compile/SNOOPY
Timecounter "i8254" frequency 1193182 Hz
CPU: AMD-K6tm w/ multimedia extensions (300.68-MHz 586-class CPU)
Origin = "AuthenticAMD" Id = 0x570 Stepping = 0
Features=0x8001bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,MMX>
AMD Features=0x400<<b10>>
real memory = 67108864 (65536K bytes)
avail memory = 61755392 (60308K bytes)
Preloaded elf kernel "kernel" at 0xc0336000.
md0: Malloc disk
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcib0: <Host to PCI bridge> on motherboard
pci0: <PCI bus> on pcib0
isab0: <VIA 82C586 PCI-ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
ata-pci0: <VIA 82C586 ATA controller> at device 7.1 on pci0
ata-pci0: Busmastering DMA supported
ata0 at 0x01f0 irq 14 on ata-pci0
ata1 at 0x0170 irq 15 on ata-pci0
vga-pci0: <Matrox MGA 2064W graphics accelerator> at device 8.0 on pci0
pcm0: <AudioPCI ES1371> irq 11 at device 9.0 on pci0
fxp0: <Intel EtherExpress Pro 10/100B Ethernet> irq 12 at device 10.0 on pci0
fxp0: Ethernet address 00:a0:c9:e8:ba:11
fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f7 irq 6 drq 2 on isa0
fdc0: FIFO enabled, 8 bytes threshold
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
ata-isa0: already registered as ata0
ata-isa1: already registered as ata1
atkbdc0: <keyboard controller (i8042)> at port 0x60-0x6f on isa0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
vga0: <Generic ISA VGA> at port 0x3b0-0x3df iomem 0xa0000-0xbffff on isa0
sc0: <System console> on isa0
sc0: VGA <16 virtual consoles, flags=0x200>
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A
sio1 at port 0x2f8-0x2ff irq 3 on isa0
sio1: type 16550A
sio2: configured irq 5 not in bitmap of probed irqs 0x400
sio2 at port 0x3e8-0x3ef irq 5 on isa0
sio2: type 16550A
sio3 at port 0x3e0-0x3e7 irq 9 on isa0
sio3: type 16550A
ppc0 at port 0x378-0x37f irq 7 flags 0x40 on isa0
ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode
plip0: <PLIP network interface> on ppbus 0
lpt0: <generic printer> on ppbus 0
lpt0: Interrupt-driven port
ppi0: <generic parallel i/o> on ppbus 0
ad0: <QUANTUM FIREBALL SE6.4A/API.0A00> ATA-3 disk at ata0 as master
ad0: 6149MB (12594960 sectors), 13328 cyls, 15 heads, 63 S/T, 512 B/S
ad0: 16 secs/int, 1 depth queue, UDMA33
ad2: <Maxtor 91152D8/WAS82739> ATA-4 disk at ata1 as master
ad2: 10991MB (22510656 sectors), 22332 cyls, 16 heads, 63 S/T, 512 B/S
ad2: 16 secs/int, 1 depth queue, UDMA33
acd0: <FX001DE/J03> CDROM drive at ata1 as slave
acd0: read 689KB/s (689KB/s), 128KB buffer, PIO
acd0: Reads:
acd0: Audio: play, 255 volume levels
acd0: Mechanism: ejectable tray
acd0: Medium: CD-ROM 120mm data disc loaded, unlocked
Mounting root from ufs:/dev/ad0s2a
WARNING: / was not properly dismounted
To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-current" in the body of the message
