Date: Wed, 27 Apr 2005 19:52:12 +0400 (MSD) From: Andrew Belashov <bel@orel.ru> To: FreeBSD-gnats-submit@FreeBSD.org Cc: glebius@FreeBSD.org Subject: sparc64/80410: netgraph is causing crash with mpd on sparc64 Message-ID: <200504271552.j3RFqCgv077122@white.orel.ru> Resent-Message-ID: <200504271600.j3RG0WBp018126@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
>Number: 80410
>Category: sparc64
>Synopsis: netgraph is causing crash with mpd on sparc64
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-sparc64
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Wed Apr 27 16:00:31 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator: Andrew Belashov
>Release: FreeBSD 5.4-STABLE sparc64
>Organization:
JSC CenterTelecom
>Environment:
System: FreeBSD bel.localdomain 5.4-STABLE FreeBSD 5.4-STABLE #22: Tue Apr 26
08:48:58 MSD 2005 bel@bel.localdomain:/usr/obj/usr/src/sys/SUNC3D sparc64
>Description:
mpd does not work on FreeBSD/sparc64. Kernel panic with "memory address
not aligned" trap message.
>How-To-Repeat:
Configure and run mpd for VPN over pptp. After connect to VPN,
start nmap scanner. Kernel right away crashed. I have coredump:
root@bel# gdb53 -k /usr/obj/usr/src/sys/SUNC3D/kernel.debug vmcore.12
GNU gdb 5.3 (FreeBSD)
[...]
panic: trap: memory address not aligned
panic messages:
---
panic: trap: memory address not aligned
cpuid = 0
KDB: enter: panic
panic: from debugger
cpuid = 0
boot() called on cpu#0
Uptime: 4m16s
Dumping 1024 MB (2 chunks)
chunk at 0x80000000: 536870912 bytes
---
#0 doadump () at /usr/src/sys/kern/kern_shutdown.c:246
246 savectx(&dumppcb);
(kgdb) bt
#0 doadump () at /usr/src/sys/kern/kern_shutdown.c:246
#1 0x00000000c01642d8 in boot (howto=260)
at /usr/src/sys/kern/kern_shutdown.c:409
#2 0x00000000c0164be4 in panic (fmt=0xc038edc8 "from debugger")
at /usr/src/sys/kern/kern_shutdown.c:565
#3 0x00000000c0065ae8 in db_panic (addr=3222812472, have_addr=0, count=-1,
modif=0xe002e950 "") at /usr/src/sys/ddb/db_command.c:435
#4 0x00000000c0065c24 in db_command_loop ()
at /usr/src/sys/ddb/db_command.c:349
#5 0x00000000c00686a8 in db_trap (type=107, code=0)
at /usr/src/sys/ddb/db_main.c:210
#6 0x00000000c0183d28 in kdb_trap (type=107, code=0, tf=0x1)
at /usr/src/sys/kern/subr_kdb.c:418
#7 0x00000000c0304aa4 in trap (tf=0xe002ed20)
at /usr/src/sys/sparc64/sparc64/trap.c:307
#8 0x00000000c0183738 in kdb_enter (msg=---Can't read userspace from dump, or kernel process---
) at /usr/src/sys/kern/subr_kdb.c:238
#9 0x00000000c0183730 in kdb_enter (msg=0xc03a60d0 "panic")
at /usr/src/sys/kern/subr_kdb.c:238
#10 0x00000000c0164c54 in panic (fmt=0xc03beb88 "trap: %s") at atomic.h:278
#11 0x00000000c03049bc in trap (tf=0xe002f120)
at /usr/src/sys/sparc64/sparc64/trap.c:369
#12 0x00000000c020f1cc in tcp_input (m=0xfffff800a9760f00, off0=40)
at /usr/src/sys/netinet/tcp_input.c:536
---Type <return> to continue, or q <return> to quit---
#13 0x00000000c020f1b8 in tcp_input (m=0xfffff800a9760f00, off0=20)
at /usr/src/sys/netinet/tcp_input.c:533
#14 0x00000000c0205af0 in ip_input (m=0xfffff800a9760f00)
at /usr/src/sys/netinet/ip_input.c:776
#15 0x00000000c01f039c in netisr_processqueue (ni=0xc0424350)
at /usr/src/sys/net/netisr.c:233
#16 0x00000000c01f0714 in swi_net (dummy=0x0) at atomic.h:278
#17 0x00000000c014bb84 in ithread_loop (arg=0xfffff8008042f700)
at /usr/src/sys/kern/kern_intr.c:547
#18 0x00000000c014a448 in fork_exit (callout=0xc014ba60 <ithread_loop>,
arg=0xfffff8008042f700, frame=0xe002f880)
at /usr/src/sys/kern/kern_fork.c:790
(kgdb) frame 14
#14 0x00000000c0205af0 in ip_input (m=0xfffff800a9760f00)
at /usr/src/sys/netinet/ip_input.c:776
776 (*inetsw[ip_protox[ip->ip_p]].pr_input)(m, hlen);
(kgdb) p ip
$1 = (struct ip *) 0xfffff800a915b035
(kgdb) p ip[0]
$2 = {ip_v = 0, ip_hl = 0, ip_tos = 0 '\0', ip_len = 0, ip_id = 0, ip_off = 0,
ip_ttl = 0 '\0', ip_p = 6 '\006', ip_sum = 28984, ip_src = {
s_addr = 167772161}, ip_dst = {s_addr = 168430081}}
>Fix:
Unknown.
netgraph(4) on sparc64 is totally broken?
>Release-Note:
>Audit-Trail:
>Unformatted:
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200504271552.j3RFqCgv077122>