Dear all! I'm trying to get httpd to work on my router using optware. I added optware target with the same toolchain used to build router's firmware. While numerous packages I built so far work fine, launching any binary that comes with httpd results in a segfault:
root@unknown:/tmp/home/root# gdb /opt/sbin/httpd > GNU gdb (GDB) 7.8.1 > Copyright (C) 2014 Free Software Foundation, Inc. > License GPLv3+: GNU GPL version 3 or later < > http://gnu.org/licenses/gpl.html> > This is free software: you are free to change and redistribute it. > There is NO WARRANTY, to the extent permitted by law. Type "show copying" > and "show warranty" for details. > This GDB was configured as "arm-linux". > Type "show configuration" for configuration details. > For bug reporting instructions, please see: > <http://www.gnu.org/software/gdb/bugs/>. > Find the GDB manual and other documentation resources online at: > <http://www.gnu.org/software/gdb/documentation/>. > For help, type "help". > Type "apropos word" to search for commands related to "word"... > Reading symbols from /opt/sbin/httpd...done. > (gdb) run -d > Starting program: /opt/sbin/httpd -d > [Thread debugging using libthread_db enabled] > Using host libthread_db library "/opt/lib/libthread_db.so.1". > Program received signal SIGSEGV, Segmentation fault. > 0x403428ec in pthread_mutex_lock () from /opt/lib/libc.so.0 > (gdb) bt full > #0 0x403428ec in pthread_mutex_lock () from /opt/lib/libc.so.0 > No symbol table info available. > #1 0x40342910 in pthread_mutex_lock () from /opt/lib/libc.so.0 > No symbol table info available. > #2 0x40342910 in pthread_mutex_lock () from /opt/lib/libc.so.0 > No symbol table info available. > #3 0x40342910 in pthread_mutex_lock () from /opt/lib/libc.so.0 > No symbol table info available. > #4 0x40342910 in pthread_mutex_lock () from /opt/lib/libc.so.0 > No symbol table info available. > #5 0x40342910 in pthread_mutex_lock () from /opt/lib/libc.so.0 > No symbol table info available. > #6 0x40342910 in pthread_mutex_lock () from /opt/lib/libc.so.0 > No symbol table info available. > #7 0x40342910 in pthread_mutex_lock () from /opt/lib/libc.so.0 > No symbol table info available. > #8 0x40342910 in pthread_mutex_lock () from /opt/lib/libc.so.0 > No symbol table info available. > #9 0x40342910 in pthread_mutex_lock () from /opt/lib/libc.so.0 > No symbol table info available. > #10 0x40342910 in pthread_mutex_lock () from /opt/lib/libc.so.0 > No symbol table info available. > #11 0x40342910 in pthread_mutex_lock () from /opt/lib/libc.so.0 > No symbol table info available. > #12 0x40342910 in pthread_mutex_lock () from /opt/lib/libc.so.0 > No symbol table info available. > #13 0x40342910 in pthread_mutex_lock () from /opt/lib/libc.so.0 > No symbol table info available. > #14 0x40342910 in pthread_mutex_lock () from /opt/lib/libc.so.0 > No symbol table info available. > #15 0x40342910 in pthread_mutex_lock () from /opt/lib/libc.so.0 > No symbol table info available. > #16 0x40342910 in pthread_mutex_lock () from /opt/lib/libc.so.0 > No symbol table info available. > #17 0x40342910 in pthread_mutex_lock () from /opt/lib/libc.so.0 > No symbol table info available. > #18 0x40342910 in pthread_mutex_lock () from /opt/lib/libc.so.0 > No symbol table info available. > #19 0x40342910 in pthread_mutex_lock () from /opt/lib/libc.so.0 > No symbol table info available. > #20 0x40342910 in pthread_mutex_lock () from /opt/lib/libc.so.0 > No symbol table info available. > #21 0x40342910 in pthread_mutex_lock () from /opt/lib/libc.so.0 > No symbol table info available. > #22 0x40342910 in pthread_mutex_lock () from /opt/lib/libc.so.0 > No symbol table info available. > #23 0x40342910 in pthread_mutex_lock () from /opt/lib/libc.so.0 > No symbol table info available. > ---Type <return> to continue, or q <return> to quit---q > Quit > (gdb) info sharedlibrary > From To Syms Read Shared Object Library > 0x40019930 0x4001ce90 Yes (*) /lib/ld-uClibc.so.0 > 0x401bbd1c 0x401db6c8 Yes /opt/lib/libpcre.so.1 > 0x40129524 0x4013f1e4 Yes /opt/lib/libaprutil.so.0 > 0x4014bdb8 0x4014eba0 Yes /opt/lib/libgdbm.so.3 > 0x400ca11c 0x400e6034 Yes /opt/lib/libexpat.so.1 > 0x401e7118 0x401fb040 Yes /opt/lib/libiconv.so.2 > 0x40161170 0x4017b60c Yes /opt/lib/libapr.so.0 > 0x4018709c 0x401891bc Yes /opt/lib/libuuid.so.1 > 0x40192620 0x40192a94 Yes (*) /opt/lib/librt.so.0 > 0x4019d31c 0x401a9cf8 Yes /opt/lib/libm.so.0 > 0x402cc4ac 0x402cdda4 Yes /opt/lib/libcrypt.so.0 > 0x400f1784 0x400f2564 Yes (*) /opt/lib/libdl.so.0 > 0x400fe7b0 0x4010554c Yes /opt/lib/libgcc_s.so.1 > 0x402fd990 0x40344904 Yes /opt/lib/libc.so.0 > 0x403621e8 0x4036851c Yes /opt/lib/libpthread.so.0 > 0x403bc9c8 0x40405698 Yes /opt/lib/libstdc++.so.6 > 0x40439990 0x40480904 Yes /lib/libc.so.0 > 0x400ab31c 0x400b7cf8 Yes /lib/libm.so.0 > 0x4049c7b0 0x404a354c Yes /lib/libgcc_s.so.1 > (*): Shared library is missing debugging information. The stack entries are seemingly endless, my patience got me to 6k+, and they're all identical. It looks like httpd is endlessly trying to acquire some lock, until stack is overflown, but I have no idea how to debug further. I even went on and compiled non-stripped version of uClibc in the hope that maybe I could get more info, but still no luck. Any help and guidance on solving this is greatly appreciated! -- Best regards, Alex Potapenko
