I had a share mounted from a Linux cifs client and then tried to delete a file. It segfaulted and left a corefile in the share directory. Coredump attached. Here's a summary from gdb: Reading symbols from /usr/sbin/smbd...Reading symbols from /usr/lib/debug/usr/sbin/smbd.debug...done. done. BFD: Warning: /scratch/./core.22165 is truncated: expected core file size >= 21536768, found: 16945152. [New LWP 22165] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". Failed to read a valid object file image from memory. Core was generated by `/usr/sbin/smbd'. Program terminated with signal 11, Segmentation fault. #0 _IO_vfprintf_internal (s=s@entry=0x7fff4a2e73b0, format=format@entry=0x7f54e4f92124 ":%s", ap=ap@entry=0x7fff4a2e7538) at vfprintf.c:232 232 int save_errno = errno; ...the stack is HUGE (>1000 stack frames), so it looks like this may be some sort of recursion problem? In any case, this machine is running: samba-3.6.9-96.fc17.1.x86_64
Created attachment 651974 [details] corefile from delete attempt
Can you still reproduce this and get more frames. There is no vfprintf.c in Samba.
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