Re: lighttpd crush the system after r274463

Hm, glebius? Any ideas?



-adrian


On 19 December 2014 at 02:27, Andrey Fesenko <f0andrey_at_gmail.com> wrote:
> 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 ---
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