Date: Fri, 2 Mar 2012 08:00:34 GMT From: "Eugene M. Zheganin" <emz@norma.perm.ru> To: freebsd-net@FreeBSD.org Subject: Re: kern/164400: [ipsec] immediate crash after the start of ipsec processing Message-ID: <201203020800.q2280YWZ003550@freefall.freebsd.org>
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The following reply was made to PR kern/164400; it has been noted by GNATS.
From: "Eugene M. Zheganin" <emz@norma.perm.ru>
To: bug-followup@FreeBSD.org, eugene@zhegan.in
Cc:
Subject: Re: kern/164400: [ipsec] immediate crash after the start of ipsec
processing
Date: Fri, 02 Mar 2012 13:52:09 +0600
sorry for the delay.
the thing is, 9.0 with pf enabled is almost useless when the kernel is
build with WITNESS/WITNESS_KDB - it keeps witnessing to KDB in infinite
cycle after entering multiuser.
I took the dump with the debug kernel.
Here's the stuff:
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x60
fault code = supervisor read, page not present
instruction pointer = 0x20:0xc0965a55
stack pointer = 0x28:0xccf145a0
frame pointer = 0x28:0xccf145c8
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 2010 (ping)
trap number = 12
panic: page fault
KDB: stack backtrace:
db_trace_self_wrapper(c0b1382c,70797420,78302065,a6231,bfbfe518,...) at
db_trace_self_wrapper+0x26
kdb_backtrace(c0b0fa75,c0bf5900,c0aaaeaa,ccf1444c,ccf1444c,...) at
kdb_backtrace+0x2a
panic(c0aaaeaa,c0b5fa29,c28af770,1,1,...) at panic+0xaf
trap_fatal(97d8,4fca2d23,4,ccf144b0,60,...) at trap_fatal+0x2f3
trap_pfault(ccf144e2,6f20,40000,ccf144f4,c28a8000,...) at trap_pfault+0xac
trap(ccf14560) at trap+0x495
calltrap() at calltrap+
<3>stray irq7
0x6
--- trap 0xc, eip = 0xc0965a55, esp = 0xccf145a0, ebp = 0xccf145c8 ---
ipsec_process_done(c286fc00,c28f3880,3a3,4,c0b0e147,...) at
ipsec_process_done+0x195
esp_output_cb(c28fa000,91214f13,c0bc1220,ccf14630,c098c8a4,...) at
esp_output_cb+0x1aa
crypto_done(c28fa000,c286fcd4,ccf146c8,8,ccf147ec,...) at crypto_done+0xb7
swcr_process(c2053680,c28fa000,0,2,c2255740,...) at swcr_process+0x12ce
crypto_invoke(1
<3>stray irq7
01,0,c0bc1220,c28f8d80,c2255740,...) at crypto_invoke+0x141
crypto_dispatch(c28fa000,c0b3ef45,371,ccf148a7,c28f6300,...) at
crypto_dispatch+0x64
esp_output(c286fc00,c28f3880,0,14,9,...) at esp_output+0x5a6
ipsec4_process_packet(c286fc00,c28f3880,1,0,0,...) at
ipsec4_process_packet+0x29f
ip_ipsec_output(ccf149b0,0,ccf14a00,ccf149b8,201,...) at ip_ipsec_
<3>stray irq7
output+0x1e0
ip_output(c286fc00,0,c2818220,1,0,...) at ip_output+0x810
gre_output(c20f7400,c286fc00,ccf14ab4,ccf14aa4,c280d9d8,...) at
gre_output+0x469
ip_output(c286fc00,0,0,20,0,...) at ip_output+0xaa6
rip_output(c286fc00,c2686b60,3e0310ac,ccf14b7c,c07f5d8d,...) at
rip_output+0x2ff
rip_send(c2686b60,0,c286fc00,c284c320,0,...) at rip_send+0x76
sosend_generic(c2686b60,c284c320,ccf14bd4,0,0,...) at sosend_generic+0x50d
sosend(c2686b60,c284c320,ccf14bd4,0,0,...) at sosend+0x3f
kern_sendit(c28af5c0,3,ccf14c48,0,0,...) at kern_sendit+0x1d4
sendit(0,c284c320,10,ccf14c64,1,...) at sendit+0xb1
sys_sendto(c28af5c0,ccf14cec,c,c,246,...) at sys_sendto+0x48
syscall(ccf14d28) at syscall+0x284
Xint0x80_syscall() at Xint0x80_syscall+0x21
--- syscall (133, FreeBSD ELF32, sys_sendto), eip = 0x2818b237, esp =
0xbfbee70c, ebp = 0xbfbee748 ---
Uptime: 10m29s
Physical memory: 243 MB
Dumping 42 MB: 27 11
No symbol "stopped_cpus" in current context.
No symbol "stoppcbs" in current context.
Reading symbols from /boot/kernel/if_gre.ko...done.
Loaded symbols for /boot/kernel/if_gre.ko
#0 doadump (textdump=1) at pcpu.h:244
244 pcpu.h: No such file or directory.
in pcpu.h
(kgdb) bt
#0 doadump (textdump=1) at pcpu.h:244
#1 0xc078cf75 in kern_reboot (howto=260) at
/usr/src/sys/kern/kern_shutdown.c:442
#2 0xc078c8ee in panic (fmt=Variable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:607
#3 0xc0a6cf53 in trap_fatal (frame=0xccf14560, eva=96) at
/usr/src/sys/i386/i386/trap.c:975
#4 0xc0a6d00c in trap_pfault (frame=0xccf14560, usermode=0, eva=96) at
/usr/src/sys/i386/i386/trap.c:839
#5 0xc0a6dc45 in trap (frame=0xccf14560) at
/usr/src/sys/i386/i386/trap.c:558
#6 0xc0a58e1c in calltrap () at /usr/src/sys/i386/i386/exception.s:168
#7 0xc0965a55 in ipsec_process_done (m=0xc286fc00, isr=0xc28f3880) at
/usr/src/sys/netipsec/ipsec_output.c:170
#8 0xc0974dba in esp_output_cb (crp=0xc28fa000) at
/usr/src/sys/netipsec/xform_esp.c:1007
#9 0xc09848f7 in crypto_done (crp=0xc28fa000) at
/usr/src/sys/opencrypto/crypto.c:1156
#10 0xc098777e in swcr_process (dev=0xc2053680, crp=0xc28fa000, hint=0)
at /usr/src/sys/opencrypto/cryptosoft.c:1054
#11 0xc0985991 in crypto_invoke (cap=0xc2053680, crp=0xc28fa000, hint=0)
at cryptodev_if.h:53
#12 0xc0985db4 in crypto_dispatch (crp=0xc28fa000) at
/usr/src/sys/opencrypto/crypto.c:806
#13 0xc0975416 in esp_output (m=0xc286fc00, isr=0xc28f3880, mp=0x0,
skip=20, protoff=9)
at /usr/src/sys/netipsec/xform_esp.c:907
#14 0xc0965e2f in ipsec4_process_packet (m=0xc286fc00, isr=0xc28f3880,
flags=1, tunalready=0)
at /usr/src/sys/netipsec/ipsec_output.c:580
#15 0xc08b09d0 in ip_ipsec_output (m=0xccf149b0, inp=0x0,
flags=0xccf14a00, error=0xccf149b8)
at /usr/src/sys/netinet/ip_ipsec.c:353
#16 0xc08b2680 in ip_output (m=0xc286fc00, opt=0x0, ro=0xc2818220,
flags=1, imo=0x0, inp=0x0)
at /usr/src/sys/netinet/ip_output.c:480
#17 0xc28e1259 in gre_output () from /boot/kernel/if_gre.ko
#18 0xc08b2916 in ip_output (m=0xc286fc00, opt=0x0, ro=0xccf14aa4,
flags=Variable "flags" is not available.
) at /usr/src/sys/netinet/ip_output.c:631
#19 0xc08b468f in rip_output (m=0xc286fc00, so=0xc2686b60,
dst=1040388268) at /usr/src/sys/netinet/raw_ip.c:517
#20 0xc08b4776 in rip_send (so=0xc2686b60, flags=0, m=0xc286fc00,
nam=0xc284c320, control=0x0, td=0xc28af5c0)
at /usr/src/sys/netinet/raw_ip.c:994
#21 0xc07f5d8d in sosend_generic (so=0xc2686b60, addr=0xc284c320,
uio=0xccf14bd4, top=0xc286fc00, control=0x0,
flags=0, td=0xc28af5c0) at /usr/src/sys/kern/uipc_socket.c:1303
#22 0xc07f159f in sosend (so=0xc2686b60, addr=0xc284c320,
uio=0xccf14bd4, top=0x0, control=0x0, flags=0, td=0xc28af5c0)
at /usr/src/sys/kern/uipc_socket.c:1347
#23 0xc07fbb44 in kern_sendit (td=0xc28af5c0, s=3, mp=0xccf14c48,
flags=0, control=0x0, segflg=UIO_USERSPACE)
at /usr/src/sys/kern/uipc_syscalls.c:810
#24 0xc07fbd51 in sendit (td=0xc28af5c0, s=3, mp=0xccf14c48, flags=0) at
/usr/src/sys/kern/uipc_syscalls.c:738
#25 0xc07fbe68 in sys_sendto (td=0xc28af5c0, uap=0xccf14cec) at
/usr/src/sys/kern/uipc_syscalls.c:862
#26 0xc0a6d414 in syscall (frame=0xccf14d28) at subr_syscall.c:131
#27 0xc0a58e81 in Xint0x80_syscall () at
/usr/src/sys/i386/i386/exception.s:266
#28 0x00000033 in ?? ()
Previous frame inner to this frame (corrupt stack?)
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