On Fri, Jun 15, 2007 at 09:23:34PM +0530, Sadarul Firos wrote: > I am working with two MIPS based boards (one is MIPS and the other is > MIPSEL) running linux-2.6.18/glibc-2.3.5. I am performing a consecutive > reboot test on these boards. After some number of reboots (say 80) I am > getting "segmentaion fault/illegal instruction" while running udevd and > ntpd during bootup. Upon observing the core dump, it is noted that the > segfault occured from the _init function of libnss_dns.so (in the case > of ntpd) and libnss_compat.so (in the case of udevd). I assume that > there might be a problem somewhere in the call_init function in > glibc-2.3.5/elf/dl-init.c. After I put some printf statements for > debugging in the call_init function, there is no segfault/illegal > instruction in the reboot testing. I have also used gdb to debug the > problem but the "segfault/illegal instruction" doesn't occur during the > reboot test. Could anyone please help me to sort out this problem. The > gdb output using coredump is attached. Normally the address space layout and most other variables during a program load should be identical each time so userspace should behave identical. So I sense the scent of a TLB or more likely cache managment problem. What 2.6.18 variant exactly are you running, that is where & when did download it, what CPU? Ralf