Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756105AbXI1Ts1 (ORCPT ); Fri, 28 Sep 2007 15:48:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752874AbXI1TsU (ORCPT ); Fri, 28 Sep 2007 15:48:20 -0400 Received: from smtp6-g19.free.fr ([212.27.42.36]:50318 "EHLO smtp6-g19.free.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751534AbXI1TsU (ORCPT ); Fri, 28 Sep 2007 15:48:20 -0400 Message-ID: <46FD5A82.9070505@free.fr> Date: Fri, 28 Sep 2007 21:48:18 +0200 From: Laurent Riffard User-Agent: Mozilla/5.0 (X11; U; Linux i686; fr-FR; rv:1.8.1.6) Gecko/20070802 SeaMonkey/1.1.4 MIME-Version: 1.0 To: Kernel development list , netdev@vger.kernel.org Subject: 2.6.23-rc[68]-mm: network hangs X-Enigmail-Version: 0.95.3 Content-Type: multipart/mixed; boundary="------------070504020908000806060606" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 8931 Lines: 141 This is a multi-part message in MIME format. --------------070504020908000806060606 Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: 7bit Hi, >From time to time, I experience some complete network hangs: Suddenly, all network connections become unresponsive. Even "ping 127.0.0.1" doesn't work. SysRq-w does not show any blocked processus. When such hang happen, I have to reboot (shutdown does work). This is not easily reproducible: it happens several minutes after boot (could be 45 minutes or 2 hours). I do not use heavy networking apps (like P2P). My typical usage is a Gnome desktop with browser, mailer, IM, video or audio streaming. I have a single PC connected to a DSL router via ethernet (so no LAN with NFS or CIFS). This happens with 2.6.23-rc8-mm2 and 2.6.23-rc6-mm1. I can't remember when I first see this problem. Maybe 2 months ago. I attached the output of "strace ping 127.0.0.1". How can I collect some more data when this problem happens ? ~~ laurent --------------070504020908000806060606 Content-Type: text/plain; name="ping.strace" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="ping.strace" execve("/bin/ping", ["ping", "127.0.0.1"], [/* 42 vars */]) = 0 brk(0) = 0x93ac000 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7f9b000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=57464, ...}) = 0 mmap2(NULL, 57464, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7f8c000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/tls/i686/cmov/libresolv.so.2", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\0!\0\000"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0644, st_size=67408, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7f8b000 mmap2(NULL, 75976, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7f78000 mmap2(0xb7f87000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xf) = 0xb7f87000 mmap2(0xb7f89000, 6344, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7f89000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/tls/i686/cmov/libc.so.6", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\0`\1\000"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0644, st_size=1307104, ...}) = 0 mmap2(NULL, 1312164, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7e37000 mmap2(0xb7f72000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x13b) = 0xb7f72000 mmap2(0xb7f75000, 9636, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7f75000 close(3) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7e36000 set_thread_area({entry_number:-1 -> 6, base_addr:0xb7e366c0, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0 mprotect(0xb7f72000, 4096, PROT_READ) = 0 munmap(0xb7f8c000, 57464) = 0 socket(PF_INET, SOCK_RAW, IPPROTO_ICMP) = 3 getuid32() = 0 setuid32(0) = 0 socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 4 connect(4, {sa_family=AF_INET, sin_port=htons(1025), sin_addr=inet_addr("127.0.0.1")}, 16) = 0 getsockname(4, {sa_family=AF_INET, sin_port=htons(44103), sin_addr=inet_addr("127.0.0.1")}, [16]) = 0 close(4) = 0 setsockopt(3, SOL_RAW, ICMP_FILTER, ~(ICMP_ECHOREPLY|ICMP_DEST_UNREACH|ICMP_SOURCE_QUENCH|ICMP_REDIRECT|ICMP_TIME_EXCEEDED|ICMP_PARAMETERPROB), 4) = 0 setsockopt(3, SOL_IP, IP_RECVERR, [1], 4) = 0 setsockopt(3, SOL_SOCKET, SO_SNDBUF, [324], 4) = 0 setsockopt(3, SOL_SOCKET, SO_RCVBUF, [65536], 4) = 0 getsockopt(3, SOL_SOCKET, SO_RCVBUF, [131072], [4]) = 0 brk(0) = 0x93ac000 brk(0x93cd000) = 0x93cd000 fstat64(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 0), ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7f9a000 write(1, "PING 127.0.0.1 (127.0.0.1) 56(84"..., 49) = 49 setsockopt(3, SOL_SOCKET, SO_TIMESTAMP, [1], 4) = 0 setsockopt(3, SOL_SOCKET, SO_SNDTIMEO, "\1\0\0\0\0\0\0\0", 8) = 0 setsockopt(3, SOL_SOCKET, SO_RCVTIMEO, "\1\0\0\0\0\0\0\0", 8) = 0 getpid() = 9353 rt_sigaction(SIGINT, {0x804b5b0, [], SA_INTERRUPT}, NULL, 8) = 0 rt_sigaction(SIGALRM, {0x804b5b0, [], SA_INTERRUPT}, NULL, 8) = 0 rt_sigaction(SIGQUIT, {0x804b5c0, [], SA_INTERRUPT}, NULL, 8) = 0 gettimeofday({1190968694, 793502}, NULL) = 0 ioctl(1, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo ...}) = 0 ioctl(1, TIOCGWINSZ, {ws_row=52, ws_col=157, ws_xpixel=0, ws_ypixel=0}) = 0 gettimeofday({1190968694, 793762}, NULL) = 0 gettimeofday({1190968694, 793824}, NULL) = 0 sendmsg(3, {msg_name(16)={sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("127.0.0.1")}, msg_iov(1)=[{"\10\0$\266\211$\0\1v\275\374F\340\34\f\0\10\t\n\v\f\r\16"..., 64}], msg_controllen=0, msg_flags=0}, 0) = 64 recvmsg(3, 0xbf982e34, 0) = -1 EAGAIN (Resource temporarily unavailable) gettimeofday({1190968695, 793022}, NULL) = 0 gettimeofday({1190968695, 793096}, NULL) = 0 sendmsg(3, {msg_name(16)={sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("127.0.0.1")}, msg_iov(1)=[{"\10\0\373\267\211$\0\2w\275\374F\10\32\f\0\10\t\n\v\f\r"..., 64}], msg_controllen=0, msg_flags=0}, 0) = 64 recvmsg(3, 0xbf982e34, 0) = -1 EAGAIN (Resource temporarily unavailable) gettimeofday({1190968696, 793050}, NULL) = 0 gettimeofday({1190968696, 793123}, NULL) = 0 sendmsg(3, {msg_name(16)={sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("127.0.0.1")}, msg_iov(1)=[{"\10\0\337\266\211$\0\3x\275\374F#\32\f\0\10\t\n\v\f\r\16"..., 64}], msg_controllen=0, msg_flags=0}, 0) = 64 recvmsg(3, 0xbf982e34, 0) = -1 EAGAIN (Resource temporarily unavailable) gettimeofday({1190968697, 793184}, NULL) = 0 gettimeofday({1190968697, 793259}, NULL) = 0 sendmsg(3, {msg_name(16)={sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("127.0.0.1")}, msg_iov(1)=[{"\10\0V\265\211$\0\4y\275\374F\253\32\f\0\10\t\n\v\f\r\16"..., 64}], msg_controllen=0, msg_flags=0}, 0) = 64 recvmsg(3, 0xbf982e34, 0) = -1 EAGAIN (Resource temporarily unavailable) gettimeofday({1190968698, 793171}, NULL) = 0 gettimeofday({1190968698, 793244}, NULL) = 0 sendmsg(3, {msg_name(16)={sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("127.0.0.1")}, msg_iov(1)=[{"\10\0d\264\211$\0\5z\275\374F\234\32\f\0\10\t\n\v\f\r\16"..., 64}], msg_controllen=0, msg_flags=0}, 0) = 64 recvmsg(3, 0xbf982e34, 0) = -1 EAGAIN (Resource temporarily unavailable) gettimeofday({1190968699, 793234}, NULL) = 0 gettimeofday({1190968699, 793306}, NULL) = 0 sendmsg(3, {msg_name(16)={sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("127.0.0.1")}, msg_iov(1)=[{"\10\0%\263\211$\0\6{\275\374F\332\32\f\0\10\t\n\v\f\r\16"..., 64}], msg_controllen=0, msg_flags=0}, 0) = 64 recvmsg(3, 0xbf982e34, 0) = -1 EAGAIN (Resource temporarily unavailable) gettimeofday({1190968700, 793319}, NULL) = 0 gettimeofday({1190968700, 793393}, NULL) = 0 sendmsg(3, {msg_name(16)={sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("127.0.0.1")}, msg_iov(1)=[{"\10\0\315\261\211$\0\7|\275\374F1\33\f\0\10\t\n\v\f\r\16"..., 64}], msg_controllen=0, msg_flags=0}, 0) = 64 recvmsg(3, 0xbf982e34, 0) = -1 EAGAIN (Resource temporarily unavailable) gettimeofday({1190968701, 793371}, NULL) = 0 gettimeofday({1190968701, 793445}, NULL) = 0 sendmsg(3, {msg_name(16)={sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("127.0.0.1")}, msg_iov(1)=[{"\10\0\230\260\211$\0\10}\275\374Fe\33\f\0\10\t\n\v\f\r"..., 64}], msg_controllen=0, msg_flags=0}, 0) = 64 recvmsg(3, 0xbf982e34, 0) = -1 EINTR (Interrupted system call) --- SIGINT (Interrupt) @ 0 (0) --- sigreturn() = ? (mask now []) write(1, "\n", 1) = 1 write(1, "--- 127.0.0.1 ping statistics --"..., 34) = 34 write(1, "8 packets transmitted, 0 receive"..., 65) = 65 write(1, "\n", 1) = 1 exit_group(1) = ? --------------070504020908000806060606-- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/