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>
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>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:
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