http://bugzilla.novell.com/show_bug.cgi?id=493152
User matz@novell.com added comment
http://bugzilla.novell.com/show_bug.cgi?id=493152#c25
Michael Matz changed:
What |Removed |Added
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CC| |matz@novell.com
--- Comment #25 from Michael Matz 2009-04-21 04:09:26 MDT ---
Note that this is only coolos theory for now. Looking at the backtrace I
have some other theory:
PID: 3809
#0 0xffffe422 in __kernel_vsyscall ()
#1 0xb78f2b2b in read () from /lib/libc.so.6
#2 0xb789939c in _IO_new_file_underflow (fp=0x979ef88) at fileops.c:598
#3 0xb789ad6b in _IO_default_uflow (fp=0x979ef88) at genops.c:440
PID: 3329, YCP thread
#0 0xffffe422 in __kernel_vsyscall ()
#1 0xb78f2b2b in read () from /lib/libc.so.6
#2 0xb789939c in _IO_new_file_underflow (fp=0x979ef88) at fileops.c:598
Note how both try to read from exactly the same file pointer (0x979ef88) (I
assume these processes are related via forks so that this indeed is the
same file descriptor). So it's possible for one to drain the other and hence
then both waiting infinitely.
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