[uml-devel] sched spin lock hang

[James S. <ja...@st...>]

Hi

SMP hang on lock sched during bootup

Happens here

Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket

is the last thing i see on the console.
2 me this looks like 2 idle and 2 spinnning on
the sched lock.

Processor #0

EIP == .text.lock.sched + 460 in section .text
N/A
do_timer + 38 in section .text
boot_timer_handler + 22 in section .text
__restore in section .text
spawn_ksoftirqd + 113 in section .text.init
do_initcalls + 14 in section .text.init
do_basic_setup + 39 in section .text.init
init + 45 in section .text
run_kernel_thread + 49 in section .text
new_thread_handler + 219 in section .text
__restore in section .text

Processor #1

nanosleep + 17 in section .text
idle_sleep + 29 in section .text
cpu_idle + 137 in section .text
idle_proc + 471 in section .text
run_kernel_thread + 49 in section .text
new_thread_handler + 219 in section .text
__restore in section .text

Processor #2 (Unreliable)

EIP == .text.lock.sched + 55 in section .text

change_sig + 72 in section .text
BITS missing ?? sigemptyset + 27 in section .text ??
ksoftirqd + 235 in section .text
run_kernel_thread + 49 in section .text
new_thread_handler + 219 in section .text
__restore in section .text
new_thread_proc + 43 in section .text
thread_start + 4 in section .text

Processpor #3

EIP == nanosleep + 17 in section .text

nanosleep + 17 in section .text
idle_sleep + 29 in section .text
cpu_idle + 137 in section .text
idle_proc + 471 in section .text
run_kernel_thread + 49 in section .text
new_thread_handler + 219 in section .text
__restore in section .text