Hello,
Further debugging proved that a https URL is sending such a result to the GET query that it makes the bbtest-net process crash. Removing the URL test in the bb-hosts file fixed it. I will keep you posted about the core explanation so that the exception can be handled by a newer code version.
Best regards,
Etienne Marganne.
From: Marganne, Etienne [mailto:emarganne at be.tiauto.com] Sent: Monday, February 22, 2010 4:26 PM To: hobbit at hswn.dk Subject: [hobbit] bbtest-net crashing
Hello,
A few days ago we experimented a total loss of service from Hobbit. The bbtest-net process keeps on crashing; we tried first to isolate the line from the bb-host file but it did not work, instability went back after a short period of stability. We have two Hobbit servers instance being clones and they failed the same way. Trying some debugging we searched the mailing for similar problems to see if someone had a solution but the -no-ares swith solution found did not make it.
The issue seams to come from a C library but I am not very sure.
Following the result from gdb on the core created by the bbtest-net:
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This GDB was configured as "i586-suse-linux"...
Using host libthread_db library "/lib/tls/libthread_db.so.1".
warning: Can't read pathname for load map: Input/output error.
Reading symbols from /usr/lib/libldap.so.199...done.
Loaded symbols for /usr/lib/libldap.so.199
Reading symbols from /usr/lib/liblber.so.199...done.
Loaded symbols for /usr/lib/liblber.so.199
Reading symbols from /usr/lib/libssl.so.0.9.7...done.
Loaded symbols for /usr/lib/libssl.so.0.9.7
Reading symbols from /usr/lib/libcrypto.so.0.9.7...done.
Loaded symbols for /usr/lib/libcrypto.so.0.9.7
Reading symbols from /lib/tls/libc.so.6...done.
Loaded symbols for /lib/tls/libc.so.6
Reading symbols from /lib/libresolv.so.2...done.
Loaded symbols for /lib/libresolv.so.2
Reading symbols from /usr/lib/libsasl2.so.2...done.
Loaded symbols for /usr/lib/libsasl2.so.2
Reading symbols from /lib/libdl.so.2...done.
Loaded symbols for /lib/libdl.so.2
Reading symbols from /lib/ld-linux.so.2...done.
Loaded symbols for /lib/ld-linux.so.2
Reading symbols from /lib/libnss_files.so.2...done.
Loaded symbols for /lib/libnss_files.so.2
Core was generated by `bbtest-net --debug --test-untagged --dns-timeout=10 --timeout=10 --concurrency='.
Program terminated with signal 6, Aborted.
#0 0xffffe410 in __kernel_vsyscall ()
(gdb) bt
#0 0xffffe410 in __kernel_vsyscall ()
#1 0x401a75c1 in raise () from /lib/tls/libc.so.6
#2 0x401a8ea5 in abort () from /lib/tls/libc.so.6
#3 0x0805b933 in xstrdup (s=0x0) at memory.c:175
#4 0x080514d7 in setup_ssl (item=0x8379aa8) at contest.c:626
#5 0x08052816 in do_tcp_tests (timeout=10, concurrency=40) at contest.c:998
#6 0x08050005 in main (argc=6, argv=0xbfffc454) at bbtest-net.c:2133
If you need any other information, let me know.
Thank you for any help,
Etienne Marganne.