Date: Tue, 18 Jul 2006 23:57:42 +0200 From: "Pawel Worach" <pawel.worach@gmail.com> To: "Randall Stewart" <rrs@cisco.com> Cc: freebsd-net@freebsd.org Subject: Re: SCTP Message-ID: <d227e09e0607181457r5ce33eao993e3c3bacc70c9e@mail.gmail.com> In-Reply-To: <d227e09e0607181323q18e53947p942c944602c43cfe@mail.gmail.com> References: <44BB7A92.9080008@cisco.com> <d227e09e0607181323q18e53947p942c944602c43cfe@mail.gmail.com>
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On 7/18/06, Pawel Worach <pawel.worach@gmail.com> wrote:
> On 7/17/06, Randall Stewart <rrs@cisco.com> wrote:
> > All:
> >
> > Just a friendly reminder/prod... if you have started
> > testing SCTP.. thats great (any feedback?)..
> > and if you have not .. please do so :-D
>
> Hi,
>
> I played around a bit with NetPIPE, FreeBSD-CURRENT in one end and
> Linux 2.6.17 in the other over a gigabit crossover cable network, 1500
> MTU. FreeBSD crashes after a while. I do have MAC enabled (no policy
> modules loaded at the time), it looks like it is involved. I think I
> can reproduce this, made it happen on both attempts.
>
And I removed MAC and I get another panic. No idea if directly related to SCTP.
panic: sbdrop
KDB: stack backtrace:
kdb_backtrace(c0761224,c07bd400,c07649ee,d5b14a10,100,...) at kdb_backtrace+0x2e
panic(c07649ee,c2b42d24,0,0,0,...) at panic+0xb7
sbdrop_locked(c2aaf9d0,10c19,0,c05250f9,c2aaf9d0,...) at sbdrop_locked+0x46
sbflush_locked(c2aaf9d0,c2b42b70,0,0,3041,...) at sbflush_locked+0x54
sbrelease_locked(c2aaf9d0,c2aaf914,d5b14a88,c05eb388,c2b42b70,...) at
sbrelease_locked+0x12
sofree(c2aaf914,d5b14ae4,4,d5b14ab4,c073ce8c,...) at sofree+0x2a3
soclose(c2aaf914,d5b14b24,0,d5b14ae0,c059d652,...) at soclose+0x3ff
soo_close(c27305a0,c275bbd0,d5b14af8,c05a9798,c27305a0,...) at soo_close+0x7d
fdrop_locked(c27305a0,c275bbd0,c0722f76,d5b14be0,4) at fdrop_locked+0xf0
fdrop(c27305a0,c275bbd0,c2720924,0,c275bbd0,d5b14be0,0,0,0,c06d1e2b,c2720924,c2b41374,c175b040,d5b14b68,c06e2c12,4,c29b7514,28111000,d5b14c5c,c06d39f2,d5b14be0,80,c2b41374,5,0)
at fdrop+0x5f
closef(c27305a0,c275bbd0,c25c4a00,d5b14c64,0,...) at closef+0x542
fdfree(c275bbd0,c078e240,2,c053e2e6,c275bbd0,...) at fdfree+0x756
exit1(c275bbd0,19100,d5b14d30,c0727af3,c275bbd0,...) at exit1+0x660
sys_exit(c275bbd0,d5b14d04,4,c275bbd0,d5b14d30,...) at sys_exit+0x1d
syscall(bfbf003b,82b003b,bfbc003b,bfbfe910,82c4000,...) at syscall+0x3d3
Xint0x80_syscall() at Xint0x80_syscall+0x1f
--- syscall (1, FreeBSD ELF32, sys_exit), eip = 0x280e87ef, esp =
0xbfbc002c, ebp = 0xbfbc0038 ---
Uptime: 10m15s
Physical memory: 502 MB
Dumping 84 MB: 69 53 37 21 5
#0 doadump () at pcpu.h:166
166 pcpu.h: No such file or directory.
in pcpu.h
(kgdb) bt
#0 doadump () at pcpu.h:166
#1 0xc0535b44 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:409
#2 0xc0535ebd in panic (fmt=0xc07649ee "sbdrop")
at /usr/src/sys/kern/kern_shutdown.c:565
#3 0xc05876b6 in sbdrop_locked (sb=0xc2aaf9d0, len=68633)
at /usr/src/sys/kern/uipc_socket2.c:1002
#4 0xc0587574 in sbflush_locked (sb=0xc2aaf9d0)
at /usr/src/sys/kern/uipc_socket2.c:969
#5 0xc0586952 in sbrelease_locked (sb=0xc2aaf9d0, so=0x0)
at /usr/src/sys/kern/uipc_socket2.c:469
#6 0xc0581603 in sofree (so=0xc2aaf914) at /usr/src/sys/kern/uipc_socket.c:587
#7 0xc0581a8f in soclose (so=0xc2aaf914)
at /usr/src/sys/kern/uipc_socket.c:662
#8 0xc056b9bd in soo_close (fp=0xc27305a0, td=0xc275bbd0)
at /usr/src/sys/kern/sys_socket.c:317
#9 0xc050be00 in fdrop_locked (fp=0xc27305a0, td=0x0) at file.h:296
#10 0xc050bcff in fdrop (fp=0xc27305a0, td=0x0)
at /usr/src/sys/kern/kern_descrip.c:2156
#11 0xc0509b42 in closef (fp=0xc27305a0, td=0xc275bbd0)
at /usr/src/sys/kern/kern_descrip.c:1971
#12 0xc0508396 in fdfree (td=0xc275bbd0)
at /usr/src/sys/kern/kern_descrip.c:1653
#13 0xc0514620 in exit1 (td=0xc275bbd0, rv=102656)
---Type <return> to continue, or q <return> to quit---
at /usr/src/sys/kern/kern_exit.c:280
#14 0xc0513fbd in sys_exit (td=0x0, uap=0x0)
at /usr/src/sys/kern/kern_exit.c:101
#15 0xc0727af3 in syscall (frame=
{tf_fs = -1078001605, tf_es = 137035835, tf_ds = -1078198213,
tf_edi = -1077942000, tf_esi = 137117696, tf_ebp = -1078198216, tf_isp
= -709800604, tf_ebx = 672598776, tf_edx = 0, tf_ecx = 3, tf_eax = 1,
tf_trapno = 12, tf_err = 2, tf_eip = 672040943, tf_cs = 51, tf_eflags
= 646, tf_esp = -1078198228, tf_ss = 59}) at
/usr/src/sys/i386/i386/trap.c:1015
#16 0xc071613f in Xint0x80_syscall () at /usr/src/sys/i386/i386/exception.s:191
#17 0x00000033 in ?? ()
Previous frame inner to this frame (corrupt stack?)
(kgdb) f 3
#3 0xc05876b6 in sbdrop_locked (sb=0xc2aaf9d0, len=68633)
at /usr/src/sys/kern/uipc_socket2.c:1002
1002 panic("sbdrop");
(kgdb) list
997
998 next = (m = sb->sb_mb) ? m->m_nextpkt : 0;
999 while (len > 0) {
1000 if (m == 0) {
1001 if (next == 0)
1002 panic("sbdrop");
1003 m = next;
1004 next = m->m_nextpkt;
1005 continue;
1006 }
(kgdb)
I also ran across this in the middle of things... this likely should
have a new thread.
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0xa0
fault code = supervisor write, page not present
instruction pointer = 0x20:0xc06444be
stack pointer = 0x28:0xd5b3bc24
frame pointer = 0x28:0xd5b3bc40
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 = 1169 (ssh)
trap number = 12
panic: page fault
KDB: stack backtrace:
kdb_backtrace(c0761224,c07bd400,c0755b24,d5b3bad8,100,...) at kdb_backtrace+0x2e
panic(c0755b24,c0779cd1,c2a9e3d4,1,1,...) at panic+0xb7
trap_fatal(d5b3bbe4,a0,2,8,0,...) at trap_fatal+0x342
trap_pfault(d5b3bbe4,0,a0,c29e5434,a0,...) at trap_pfault+0x245
trap(8,c0760028,c0760028,c079aed4,c29e53e4,...) at trap+0x3e3
calltrap() at calltrap+0x5
--- trap 0xc, eip = 0xc06444be, esp = 0xd5b3bc24, ebp = 0xd5b3bc40 ---
udp_shutdown(c29e53e4,0,d5b3bd04,c29c3a20,d5b3bc84,...) at udp_shutdown+0x1e
soshutdown(c29e53e4,2,d5b3bc74,0,d5b3bdd0,...) at soshutdown+0x41
shutdown(c29c3a20,d5b3bd04,8,16,d5b3bd30,...) at shutdown+0xad
syscall(82a003b,bfbf003b,bfbf003b,0,2,...) at syscall+0x3d3
Xint0x80_syscall() at Xint0x80_syscall+0x1f
--- syscall (134, FreeBSD ELF32, shutdown), eip = 0x2826c327, esp =
0xbfbfe9fc, ebp = 0xbfbfea18 ---
Uptime: 13m47s
Physical memory: 502 MB
Dumping 46 MB: 31 (CTRL-C to abort) (CTRL-C to abort) (CTRL-C to abort) 15
#0 doadump () at pcpu.h:166
166 pcpu.h: No such file or directory.
in pcpu.h
(kgdb) bt
#0 doadump () at pcpu.h:166
#1 0xc0535b44 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:409
#2 0xc0535ebd in panic (fmt=0xc0755b24 "%s")
at /usr/src/sys/kern/kern_shutdown.c:565
#3 0xc07276b2 in trap_fatal (frame=0xd5b3bbe4, eva=160)
at /usr/src/sys/i386/i386/trap.c:869
#4 0xc0727345 in trap_pfault (frame=0xd5b3bbe4, usermode=0, eva=160)
at /usr/src/sys/i386/i386/trap.c:778
#5 0xc0726e93 in trap (frame=
{tf_fs = 8, tf_es = -1066008536, tf_ds = -1066008536, tf_edi =
-1065767212, tf_esi = -1029811228, tf_ebp = -709641152, tf_isp =
-709641200, tf_ebx = 0, tf_edx = -1029948896, tf_ecx = 4, tf_eax = 4,
tf_trapno = 12, tf_err = 2, tf_eip = -1067170626, tf_cs = 32,
tf_eflags = 66198, tf_esp = 0, tf_ss = 0})
at /usr/src/sys/i386/i386/trap.c:463
#6 0xc07160ea in calltrap () at /usr/src/sys/i386/i386/exception.s:138
#7 0xc06444be in udp_shutdown (so=0xc29e53e4) at atomic.h:146
#8 0xc0583bf1 in soshutdown (so=0xc29e53e4, how=2)
at /usr/src/sys/kern/uipc_socket.c:1810
#9 0xc058a07d in shutdown (td=0xc29c3a20, uap=0xd5b3bd04)
at /usr/src/sys/kern/uipc_syscalls.c:1328
#10 0xc0727af3 in syscall (frame=
{tf_fs = 136970299, tf_es = -1078001605, tf_ds = -1078001605,
tf_edi = 0, tf_esi = 2, tf_ebp = -1077941736, tf_isp = -709640860,
tf_ebx = 671968624, tf_ed---Type <return> to continue, or q <return>
to quit---
x = 0, tf_ecx = 2, tf_eax = 134, tf_trapno = 22, tf_err = 2, tf_eip =
673628967, tf_cs = 51, tf_eflags = 582, tf_esp = -1077941764, tf_ss =
59})
at /usr/src/sys/i386/i386/trap.c:1015
#11 0xc071613f in Xint0x80_syscall () at /usr/src/sys/i386/i386/exception.s:191
#12 0x00000033 in ?? ()
Previous frame inner to this frame (corrupt stack?)
--
Pawel
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