Hi I don't think it is expected that the call traces in a process dump (sysrq t) are empty? This happens on at least 2.6.21 and 2.6.22-rc5. The userland is 32bit. The machine is a T2000. | inetutils-ine S 00000000004060d4 0 2290 1 (NOTLB) | Call Trace: | master S 00000000004ab0b8 0 2350 1 (NOTLB) | Call Trace: | pickup S 00000000004ab0b8 0 2353 2350 (NOTLB) | Call Trace: | qmgr S 00000000004ab0b8 0 2354 2350 (NOTLB) | Call Trace: | sshd S 00000000004ab0b8 0 2363 1 (NOTLB) | Call Trace: | mdadm S 00000000004ab0b8 0 2398 1 (NOTLB) | Call Trace: | cron S 00000000004777b0 0 2408 1 (NOTLB) | Call Trace: | getty S 0000000000573d90 0 2434 1 (NOTLB) | Call Trace: | sshd S 00000000004ab0b8 0 2435 2363 (NOTLB) | Call Trace: Bastian -- Captain's Log, star date 21:34.5... - To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html