I am using 2.6.18 kernel with rt-linux patch. In my userspace program , I registered for signals 65,64,63,62 ( timer ) . In my signal handler , i have a call to localtime(). local_time() seems to be invoking an io call. program seems to be frozen , when all interrupts comes together. i could see from the core ( grenerated forcifully using ABRT signal ) that all signal handler acquire some lock and suddently some other inteerupt comes....this leads to deadlock #15 <signal handler called> #16 0x0070a886 in _IO_vfscanf_internal () from /lib/libc.so.6 #17 0x007170c1 in vsscanf () from /lib/libc.so.6 #18 0x00711dae in sscanf () from /lib/libc.so.6 #19 0x0073ff9f in __tzset_parse_tz () from /lib/libc.so.6 #20 0x00740f8f in __tzfile_compute () from /lib/libc.so.6 #21 0x00740845 in __tz_convert () from /lib/libc.so.6 #22 0x0073ecff in localtime () from /lib/libc.so.6 How to get away from this ? -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
