Date: Mon, 25 Jan 1999 18:24:51 -0800 (PST) From: yasu@mrit.mei.co.jp To: freebsd-gnats-submit@FreeBSD.ORG Subject: kern/9689: panic in sbdrop(kern/uipc_socket2.c) Message-ID: <199901260224.SAA01731@hub.freebsd.org>
next in thread | raw e-mail | index | archive | help
>Number: 9689
>Category: kern
>Synopsis: panic in sbdrop(kern/uipc_socket2.c)
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Mon Jan 25 18:30:00 PST 1999
>Closed-Date:
>Last-Modified:
>Originator: WATANABE, Yasuhiko
>Release: FreeBSD waltz 4.0-CURRENT FreeBSD 4.0-CURRENT #3: Sat Jan 23 13:54:25 JST 1999
>Organization:
Matsushita Research Institute Tokyo, Inc.
>Environment:
FreeBSD waltz 4.0-CURRENT FreeBSD 4.0-CURRENT #3: Sat Jan 23 13:54:25 JST 1999 yasu@waltz:/usr/src/sys/compile/WALTZ i386
>Description:
Kernel panic happend in sbdrop shown in the following dump.
Script started on Tue Jan 26 11:18:37 1999
# gdb -k keernl.g.1 vmcore.1
GDB is free software and you are welcome to distribute copies of it
under certain conditions; type "show copying" to see the conditions.
There is absolutely no warranty for GDB; type "show warranty" for details.
GDB 4.16 (i386-unknown-freebsd),
Copyright 1996 Free Software Foundation, Inc...
IdlePTD 2863104
initial pcb at 255e80
panicstr: from debugger
panic messages:
---
panic: sbdrop
panic: from debugger
dumping to dev 50001, offset 111824
dump 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
---
#0 boot (howto=260) at ../../kern/kern_shutdown.c:285
285 dumppcb.pcb_cr3 = rcr3();
(kgdb) bt
#0 boot (howto=260) at ../../kern/kern_shutdown.c:285
#1 0xf01428e5 in panic (fmt=0xf021ff54 "from debugger")
at ../../kern/kern_shutdown.c:446
#2 0xf0122d8d in db_panic (addr=-266374125, have_addr=0, count=-1,
modif=0xf023bb6c "") at ../../ddb/db_command.c:432
#3 0xf0122d2d in db_command (last_cmdp=0xf023e054, cmd_table=0xf023deb4,
aux_cmd_tablep=0xf025370c) at ../../ddb/db_command.c:332
#4 0xf0122df2 in db_command_loop () at ../../ddb/db_command.c:454
#5 0xf0125143 in db_trap (type=3, code=0) at ../../ddb/db_trap.c:71
#6 0xf01f71ee in kdb_trap (type=3, code=0, regs=0xf023bc5c)
at ../../i386/i386/db_interface.c:157
#7 0xf0201494 in trap (frame={tf_es = 16, tf_ds = 16, tf_edi = -260786162,
tf_esi = 256, tf_ebp = -266093408, tf_isp = -266093436,
tf_ebx = -266189251, tf_edx = -266134944, tf_ecx = -267677952,
tf_eax = 18, tf_trapno = 3, tf_err = 0, tf_eip = -266374125, tf_cs = 8,
tf_eflags = 598, tf_esp = -266134960, tf_ss = -266194869})
at ../../i386/i386/trap.c:548
#8 0xf01f7413 in Debugger (msg=0xf022304b "panic")
at ../../i386/i386/db_interface.c:317
#9 0xf01428dc in panic (fmt=0xf022463d "sbdrop")
at ../../kern/kern_shutdown.c:444
#10 0xf015c3a8 in sbdrop (sb=0xf590bb08, len=128)
at ../../kern/uipc_socket2.c:739
#11 0xf018a4e5 in tcp_input (m=0xf0756c00, iphlen=20)
at ../../netinet/tcp_input.c:1473
#12 0xf0185fb4 in ip_input (m=0xf0756c00) at ../../netinet/ip_input.c:693
#13 0xf0186013 in ipintr () at ../../netinet/ip_input.c:720
(kgdb) frame 10
#10 0xf015c3a8 in sbdrop (sb=0xf590bb08, len=128)
at ../../kern/uipc_socket2.c:739
739 panic("sbdrop");
(kgdb) list
734
735 next = (m = sb->sb_mb) ? m->m_nextpkt : 0;
736 while (len > 0) {
737 if (m == 0) {
738 if (next == 0)
739 panic("sbdrop");
740 m = next;
741 next = m->m_nextpkt;
742 continue;
743 }
(kgdb) up
#11 0xf018a4e5 in tcp_input (m=0xf0756c00, iphlen=20)
at ../../netinet/tcp_input.c:1473
1473 sbdrop(&so->so_snd, acked);
(kgdb) list
1468 if (acked > so->so_snd.sb_cc) {
1469 tp->snd_wnd -= so->so_snd.sb_cc;
1470 sbdrop(&so->so_snd, (int)so->so_snd.sb_cc);
1471 ourfinisacked = 1;
1472 } else {
1473 sbdrop(&so->so_snd, acked);
1474 tp->snd_wnd -= acked;
1475 ourfinisacked = 0;
1476 }
1477 sowwakeup(so);
(kgdb) up
#12 0xf0185fb4 in ip_input (m=0xf0756c00) at ../../netinet/ip_input.c:693
693 (*inetsw[ip_protox[ip->ip_p]].pr_input)(m, hlen);
(kgdb) list
688
689 /*
690 * Switch out to protocol's input routine.
691 */
692 ipstat.ips_delivered++;
693 (*inetsw[ip_protox[ip->ip_p]].pr_input)(m, hlen);
694 #ifdef IPFIREWALL_FORWARD
695 ip_fw_fwd_addr = NULL; /* tcp needed it */
696 #endif
697 return;
(kgdb) quit
# ls
bounds kernel.0 kernel.1 kernel.g.1* typescript vmcore.0 vmcore.1
# exit
Script done on Tue Jan 26 11:19:53 1999
>How-To-Repeat:
Not known.
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-bugs" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199901260224.SAA01731>