Date: Mon, 9 Jun 2003 12:41:32 +0200 (MET DST) From: =?iso-8859-1?Q?Henrik_Grubbstr=F6m?= <grubba@roxen.com> To: Ceri Davies <ceri@FreeBSD.org> Cc: Dan Nelson <dnelson@allantgroup.com> Subject: Re: misc/22190: A threaded read(2) from a socketpair(2) fd can sometimes fail with errno 19 (ENODEV) Message-ID: <Pine.GSO.4.21.0306091233430.13083-100000@jms.roxen.com> In-Reply-To: <200306081757.h58Hv8Nm000153@freefall.freebsd.org>
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On Sun, 8 Jun 2003, Ceri Davies wrote: > Synopsis: A threaded read(2) from a socketpair(2) fd can sometimes fail with errno 19 (ENODEV) > > State-Changed-From-To: feedback->open > State-Changed-By: ceri > State-Changed-When: Sun Jun 8 10:57:08 PDT 2003 > State-Changed-Why: > Feedback has been requested and received; throw this PR back open. > > http://www.freebsd.org/cgi/query-pr.cgi?pr=22190 Well, since the last followup was from august last year, I can inform you that the bug was last triggered on Dan's FreeBSD 5.1-BETA machine yesterday: Fatal error 'read(2) may not return ENODEV' at line 98 in file /usr/src/lib/libc_r/uthread/uthread_read.c (errno = 19) Abort trap (core dumped) Core was generated by `pike'. Program terminated with signal 6, Aborted. #0 0x2826239f in kill () at {standard input}:15 in {standard input} Active threads Current language: auto; currently asm * 1 process 33497 0x2826239f in kill () at {standard input}:15 Backtrace #0 0x2826239f in kill () at {standard input}:15 #1 0x282c219a in abort () at /usr/src/lib/libc/stdlib/abort.c:72 #2 0x2820f443 in _thread_exit () at /usr/src/lib/libc_r/uthread/uthread_exit.c:99 #3 0x28209d65 in _read (fd=12, buf=0xbf966fe8, nbytes=3) at /usr/src/lib/libc_r/uthread/uthread_read.c:98 #4 0x28209d9b in __read (fd=12, buf=0xbf966fe8, nbytes=3) at /usr/src/lib/libc_r/uthread/uthread_read.c:108 #5 0x080b725a in f_create_process (args=1) at /usr/tmp/xenofarm/pike-7.5/dan.emsphone.com/buildtmp/Pike7.5-20030608-215603/src/signal_handler.c:3512 #6 0x0807073d in low_mega_apply (type=APPLY_LOW, args=1, arg1=0x85dced8, arg2=0x6) at apply_low.h:195 #7 0x08071734 in mega_apply (type=APPLY_LOW, args=1, arg1=0x85dced8, arg2=0x6) at /usr/tmp/xenofarm/pike-7.5/dan.emsphone.com/buildtmp/Pike7.5-20030608-215603/src/interpret.c:1702 #8 0x080cd7a5 in call_pike_initializers (o=0x85dced8, args=1) at /usr/tmp/xenofarm/pike-7.5/dan.emsphone.com/buildtmp/Pike7.5-20030608-215603/src/object.c:326 #9 0x080cd894 in debug_clone_object (p=0x5, args=1) at /usr/tmp/xenofarm/pike-7.5/dan.emsphone.com/buildtmp/Pike7.5-20030608-215603/src/object.c:352 #10 0x080711fe in low_mega_apply (type=APPLY_SVALUE_STRICT, args=1, arg1=0x8533554, arg2=0x0) at /usr/tmp/xenofarm/pike-7.5/dan.emsphone.com/buildtmp/Pike7.5-20030608-215603/src/interpret.c:1500 #11 0x0806e77d in opcode_F_APPLY (arg1=33496) at interpret_functions.h:1873 #12 0x08533166 in ?? () #13 0x08071750 in mega_apply (type=APPLY_STACK, args=1, arg1=0x0, arg2=0x0) at /usr/tmp/xenofarm/pike-7.5/dan.emsphone.com/buildtmp/Pike7.5-20030608-215603/src/interpret.c:1704 #14 0x08071874 in f_call_function (args=1) at /usr/tmp/xenofarm/pike-7.5/dan.emsphone.com/buildtmp/Pike7.5-20030608-215603/src/interpret.c:1769 #15 0x080f6fed in new_thread_func (data=0xbfbff404) at /usr/tmp/xenofarm/pike-7.5/dan.emsphone.com/buildtmp/Pike7.5-20030608-215603/src/threads.c:788 #16 0x28204e6d in _thread_start () at /usr/src/lib/libc_r/uthread/uthread_create.c:275 #17 0xbf91c000 in ?? () sysname: FreeBSD release: 5.1-BETA version: FreeBSD 5.1-BETA #271: Thu May 29 16:33:28 CDT 2003 dan@dan.emsphone.com:/usr/src/sys/i386/compile/DANSMP machine: i386 nodename: dan.emsphone.com testname: default command: make xenofarm clientversion: $Id: client.sh,v 1.73 2003/05/20 12:48:33 mani Exp $ putversion: $Id: put.c,v 1.14 2003/01/12 21:14:16 ceder Exp $ contact: dnelson@allantgroup.com Thanks, -- Henrik Grubbström grubba@roxen.com Roxen Internet Software AB
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