From owner-freebsd-hackers@FreeBSD.ORG Fri Dec 19 10:27:48 2014 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 78317153; Fri, 19 Dec 2014 10:27:48 +0000 (UTC) Received: from mail-wg0-x230.google.com (mail-wg0-x230.google.com [IPv6:2a00:1450:400c:c00::230]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 0CFFC188D; Fri, 19 Dec 2014 10:27:48 +0000 (UTC) Received: by mail-wg0-f48.google.com with SMTP id y19so902146wgg.21; Fri, 19 Dec 2014 02:27:46 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=7eRs6seN1xdZEcgZGiX45l97/qQ7ojVsIqu0DriEVpk=; b=YhV9Z3X7HhxBAhjB3hk5JT1uPz5cgg3w6Aj8ixkv7V5R2xVSmPpBqCclw0ZfQKV93s rKEdu6n+ARugUD4G9dMea1+ikToMG2VAl9O0J4SPGTFPLFd7QnX0ELX+SSR6qUtlhV+/ lFUUXZ8inA3i5fsraDMsWEQ+2zeLFMjhsx11I3GEZ14OXMkALkT3AtbXNpMavIq4bF6M /Z0uSCpOzmbIOQxIHPb16Ooh+R4MFFuR+ReofBlyPOh8qsrfWIkwrBZBMI62rFhN5Z0u kxCPAPF3AvqTLXx19+2AucSA8bGQ1rbJ6ZjZoLkbhNjjK1q5ZrZ2z2S9siP62Y7Gawc1 zw9Q== MIME-Version: 1.0 X-Received: by 10.180.198.211 with SMTP id je19mr4262327wic.27.1418984866346; Fri, 19 Dec 2014 02:27:46 -0800 (PST) Received: by 10.194.216.226 with HTTP; Fri, 19 Dec 2014 02:27:46 -0800 (PST) Date: Fri, 19 Dec 2014 14:27:46 +0400 Message-ID: Subject: lighttpd crush the system after r274463 From: Andrey Fesenko To: freebsd-current , "freebsd-hackers@freebsd.org" Content-Type: text/plain; charset=UTF-8 X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 19 Dec 2014 10:27:48 -0000 Hello, I'm use lighttpd+SPAWNFCGI for moinmoin wiki. Before r274463 work fine, after update r275317 and CURRENT system crushed after start any python CGI script. For test i'm install py27-flup and start simple #!/usr/local/bin/python2.7 def myapp(environ, start_response): start_response('200 OK', [('Content-Type', 'text/plain')]) return ['Hello World!\n'] if __name__ == '__main__': from flup.server.fcgi import WSGIServer WSGIServer(myapp).run() Perl CGI test script work fine. Workaround FreeBSD-r275317 and later lighttpd-1.4.35_5 Options : BZIP2 : on DOCS : on FAM : on GDBM : off IPV6 : on LDAP : off LIBEV : on LUA : on MEMCACHE : off MYSQL : off MYSQLAUTH : off NODELAY : on OPENSSL : on SPAWNFCGI : on VALGRIND : off WEBDAV : off Shared Libs required: libpcre.so.1 liblua-5.1.so libfam.so.0 libev.so.4 Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0x8 fault code = supervisor read data, page not present instruction pointer = 0x20:0xffffffff809d44bd stack pointer = 0x28:0xfffffe00f77df700 frame pointer = 0x28:0xfffffe00f77df730 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 658 (lighttpd) [ thread pid 658 tid 100067 ] Stopped at sbappendstream_locked+0x2d: cmpq $0,0x8(%r14) db> bt Tracing pid 658 tid 100067 td 0xfffff8000ba3e940 sbappendstream_locked() at sbappendstream_locked+0x2d/frame 0xfffffe00f77df730 sbappendstream() at sbappendstream+0x3c/frame 0xfffffe00f77df760 tcp_usr_send() at tcp_usr_send+0x1ab/frame 0xfffffe00f77df7e0 sosend_generic() at sosend_generic+0x40b/frame 0xfffffe00f77df8a0 soo_write() at soo_write+0x42/frame 0xfffffe00f77df8d0 dofilewrite() at dofilewrite+0x88/frame 0xfffffe00f77df920 kern_writev() at kern_writev+0x68/frame 0xfffffe00f77df970 sys_writev() at sys_writev+0x36/frame 0xfffffe00f77df9a0 amd64_syscall() at amd64_syscall+0x25a/frame 0xfffffe00f77dfab0 Xfast_syscall() at Xfast_syscall+0xfb/frame 0xfffffe00f77dfab0 --- syscall (121, FreeBSD ELF64, sys_writev), rip = 0x80164cb8a, rsp = 0x7fffffffa658, rbp = 0x7fffffffe6 c0 ---