My nightly build box crashes (2 times in a row) on either ab/apache or
sysbench filesystem benchmark:
dfbench# kgdb kern.0 vmcore.0
GNU gdb (GDB) 7.3
Copyright (C) 2011 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
<http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "i386-dragonfly".
For bug reporting instructions, please see:
<http://bugs.dragonflybsd.org/>...
Reading symbols from /var/crash/kern.0...done.
Unread portion of the kernel message buffer:
panic: vm_page_wakeup: page not busy!!!
cpuid = 1
Trace beginning at frame 0xce353b0c
panic(ffffffff,1,c07111b0,ce353b40,ca883360) at panic+0x19e 0xc0373423
panic(c07111b0,c16e59d0,cb55a400,ce353b60,c03bc000) at panic+0x19e
0xc0373423
vm_page_wakeup(c16e59d0,0,c06b3f01) at vm_page_wakeup+0x1d 0xc05855b5
sf_buf_mfree(c266aa60,cb559800,126,ce1daab8,0) at sf_buf_mfree+0x6f
0xc03bc000
m_free(cb55a600,ce353bf8,c03ba2dc,cb559800,20000) at m_free+0x279 0xc03b3eb4
m_freem(cb559800,20000,ce353be8,1b32,3fe) at m_freem+0x15 0xc03b3fd6
soreceive(ce1daab8,0,ce353c90,0,0) at soreceive+0x97a 0xc03ba2dc
soo_read(cdf3a978,ce353c90,ca9983a8,0,c03a0af4) at soo_read+0x7a 0xc03a6e3a
kern_preadv(3,ce353c90,0,ce353cf0,8056518,3a8,ce353c88,1,1c57,0,3a8,0,0,ca883360)
at kern_preadv+0x148 0xc03a1a6a
sys_read(ce353cf0,ce353d00,c,c037fc8c,c0b61d98) at sys_read+0x6d 0xc03a1c27
syscall2(ce353d40) at syscall2+0x26e 0xc0644701
Xint0x80_syscall() at Xint0x80_syscall+0x36 0xc061bc96
Debugger("panic")
CPU1 stopping CPUs: 0x00000001
stopped
panic: from debugger
cpuid = 1
boot() called on cpu#1
Uptime: 1h42m16s
Physical memory: 754 MB
Dumping 82 MB: 67 51 35 19 3
[New pid 762/0, httpd]
[New pid 763/0, httpd]
[New pid 765/0, httpd]
[New pid 916/0, ab1.3]
[New pid 734/0, bash]
[New pid 757/0, httpd]
[New pid 335/0, syslogd]
[New pid 689/0, cron]
[New pid 674/0, sendmail]
[New pid 769/0, getty]
[New pid 768/0, getty]
[New pid 767/0, getty]
[New pid 771/0, getty]
[New pid 772/0, getty]
[New pid 773/0, getty]
[New pid 770/0, getty]
[New pid 766/0, getty]
[New pid 760/0, httpd]
[New pid 725/0, cron]
[New pid 656/0, sshd]
[New kernel fq_balance_ad0]
[New kernel pagezero]
[New kernel consttyd]
[New kernel vnlru]
[New kernel bufdaemon]
[New kernel vmdaemon]
[New kernel pagedaemon]
[New pid 1/0, init]
[New kernel hammer-S2]
[New kernel hammer-S0]
[New kernel rtable_cpu 1]
[New kernel usbtask-dr]
[New kernel usb0]
[New kernel ithread197 1]
[New kernel ithread195 1]
[New kernel ithreadE 1]
[New kernel xpt_thrd]
[New kernel crypto 1]
[New kernel firmware taskq]
[New kernel taskq_cpu 1]
[New kernel ifnet 1]
[New kernel disk_msg_core]
[New kernel netisr_cpu 1]
[New kernel usched 1]
[New kernel dsched 1]
[New kernel softclock 1]
[New kernel idle_1]
[New pid 764/0, httpd]
[New pid 670/0, sendmail]
[New pid 541/0, dntpd]
[New pid 774/0, getty]
[New pid 761/0, httpd]
[New pid 754/0, sendmail]
[New kernel fq_dispatch_ad0]
[New kernel syncer]
[New kernel bufdaemon_hw]
[New kernel swapcached]
[New kernel hammer-S3]
[New kernel hammer-S1]
[New kernel hammer-M]
[New kernel rtable_cpu 0]
[New kernel random]
[New kernel ithread4 0]
[New kernel ithread192 0]
[New kernel ithread6 0]
[New kernel ithread12 0]
[New kernel ithread1 0]
[New kernel usbtask-hc]
[New kernel ithread11 0]
[New kernel ithread15 0]
[New kernel ithread14 0]
[New kernel ithread9 0]
[New kernel acpi_task]
[New pid 0/0, swapper]
[New kernel crypto returns]
[New kernel crypto 0]
[New kernel taskq_cpu 0]
[New kernel ifnet 0]
[New kernel devfs_msg_core]
[New kernel netisr_cpu 0]
[New kernel usched 0]
[New kernel dsched 0]
[New kernel ithread196 0]
[New kernel ithreadE 0]
[New kernel softclock 0]
[New kernel idle_0]
Reading symbols from /boot/kernel/acpi.ko...done.
Loaded symbols for /boot/kernel/acpi.ko
Reading symbols from /boot/kernel/ehci.ko...done.
Loaded symbols for /boot/kernel/ehci.ko
_get_mycpu () at ./machine/thread.h:79
79 __asm ("movl %%fs:globaldata,%0" : "=r" (gd) :
"m"(__mycpu__dummy));
(kgdb) backtrace
#0 _get_mycpu () at ./machine/thread.h:79
#1 md_dumpsys (di=0xc0ae59e0) at
/usr/src/sys/platform/pc32/i386/dump_machdep.c:264
#2 0xc0372bd8 in dumpsys () at /usr/src/sys/kern/kern_shutdown.c:925
#3 0xc03731ee in boot (howto=<optimized out>) at
/usr/src/sys/kern/kern_shutdown.c:387
#4 0xc0373457 in panic (fmt=0xc06971f2 "from debugger") at
/usr/src/sys/kern/kern_shutdown.c:831
#5 0xc018ac02 in db_panic (addr=-1067342974, have_addr=0, count=-1,
modif=0xce35399c "") at /usr/src/sys/ddb/db_command.c:445
#6 0xc018b2cf in db_command (aux_cmd_tablep_end=0xc0721114,
aux_cmd_tablep=0xc07210f8, cmd_table=<optimized out>,
last_cmdp=<optimized out>)
at /usr/src/sys/ddb/db_command.c:401
#7 db_command_loop () at /usr/src/sys/ddb/db_command.c:467
#8 0xc018de2e in db_trap (type=3, code=0) at /usr/src/sys/ddb/db_trap.c:71
#9 0xc061a6f5 in kdb_trap (type=3, code=0, regs=0xce353abc) at
/usr/src/sys/platform/pc32/i386/db_interface.c:152
#10 0xc064412b in trap (frame=0xce353abc) at
/usr/src/sys/platform/pc32/i386/trap.c:843
#11 0xc061bbe7 in calltrap () at
/usr/src/sys/platform/pc32/i386/exception.s:787
#12 0xc061a382 in breakpoint () at ./cpu/cpufunc.h:72
#13 Debugger (msg=0xc06b080d "panic") at
/usr/src/sys/platform/pc32/i386/db_interface.c:334
#14 0xc0373438 in panic (fmt=0xc07111b0 "vm_page_wakeup: page not
busy!!!") at /usr/src/sys/kern/kern_shutdown.c:822
#15 0xc05855b5 in vm_page_wakeup (m=0xc16e59d0) at
/usr/src/sys/vm/vm_page.c:838
#16 0xc03bc000 in sf_buf_mfree (arg=0xc266aa60) at
/usr/src/sys/kern/uipc_syscalls.c:1419
#17 0xc03b3eb4 in m_free (m=0xcb55a600) at
/usr/src/sys/kern/uipc_mbuf.c:1184
#18 0xc03b3fd6 in m_freem (m=0x12) at /usr/src/sys/kern/uipc_mbuf.c:1223
#19 0xc03ba2dc in soreceive (so=0xce1daab8, psa=0x0, uio=0xce353c90,
sio=0x0, controlp=0x0, flagsp=0xce353c18) at
/usr/src/sys/kern/uipc_socket.c:1495
#20 0xc03a6e3a in so_pru_soreceive (flagsp=<optimized out>,
controlp=<optimized out>, sio=<optimized out>, uio=<optimized out>,
paddr=<optimized out>, so=<optimized out>) at
/usr/src/sys/sys/socketops.h:73
#21 soo_read (fp=0xcdf3a978, uio=0xce353c90, cred=0xca9983a8, fflags=0)
at /usr/src/sys/kern/sys_socket.c:90
#22 0xc03a1a6a in fo_read (cred=<optimized out>, uio=<optimized out>,
fp=<optimized out>, flags=<optimized out>) at /usr/src/sys/sys/file2.h:57
#23 dofileread (res=<optimized out>, flags=<optimized out>,
auio=<optimized out>, fp=<optimized out>, fd=<optimized out>)
at /usr/src/sys/kern/sys_generic.c:305
#24 kern_preadv (fd=3, auio=0xce353c90, flags=0, res=0xce353cf0) at
/usr/src/sys/kern/sys_generic.c:269
#25 0xc03a1c27 in sys_read (uap=0xce353cf0) at
/usr/src/sys/kern/sys_generic.c:145
#26 0xc0644701 in syscall2 (frame=0xce353d40) at
/usr/src/sys/platform/pc32/i386/trap.c:1336
#27 0xc061bc96 in Xint0x80_syscall () at
/usr/src/sys/platform/pc32/i386/exception.s:878
#28 0x0000001f in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
(kgdb) q
dfbench# uname -a
DragonFly dfbench.lan.net 2.13-DEVELOPMENT DragonFly
v2.13.0.650.gea2c6-DEVELOPMENT #59: Fri Dec 23 04:28:28 CET 2011
r...@dfbench.lan.net:/usr/obj/usr/src/sys/GENERIC i386
dfbench#
