kirkwood openrd: random kernel crashes with git kernel

[Simon Kagstrom]

On Thu, 01 Oct 2009 12:19:21 -0400 (EDT)
Nicolas Pitre <nico at fluxnic.net> wrote:

> > I should add that I've seen this error even without openocd connected,
> > so this seems to be a real error. Anyway, I guess this will sooner or
> > later be applied (in some form) upstream, so openrd should benefit
> > "automatically" from it.
> > 
> > However, with OpenOCD there are other type of crashes which look very
> > random, so I believe those will stay even with this.
> 
> Please send me information about those when you can.

The nohlt argument seems to fix them, thanks! Without it I get random
memory corruption errors such as this:

   Mount local file[    5.160903] BUG: spinlock wrong owner on CPU#0, rc.sysinit/452
   [    5.166878]  lock: df464af8, .magic: dead4ead, .owner: <none>/-1, .owner_cpu: 0
   [    5.174229] [<c003130c>] (unwind_backtrace+0x0/0xdc) from [<c02c7b10>] (dump_stack+0x18/0x1c)
   [    5.182842] [<c02c7b10>] (dump_stack+0x18/0x1c) from [<c017bc08>] (spin_bug+0x90/0xa4)
   [    5.190837] [<c017bc08>] (spin_bug+0x90/0xa4) from [<c017bc84>] (_raw_spin_unlock+0x68/0xac)
   [    5.199356] [<c017bc84>] (_raw_spin_unlock+0x68/0xac) from [<c02ca8a0>] (_spin_unlock_irq+0x10/0x20)
   [    5.208573] [<c02ca8a0>] (_spin_unlock_irq+0x10/0x20) from [<c00475dc>] (dup_mm+0x278/0x450)
   [    5.217093] [<c00475dc>] (dup_mm+0x278/0x450) from [<c0048004>] (copy_process+0x794/0xddc)
   [    5.225437] [<c0048004>] (copy_process+0x794/0xddc) from [<c00487ac>] (do_fork+0x160/0x314)
   [    5.233870] [<c00487ac>] (do_fork+0x160/0x314) from [<c002e218>] (sys_clone+0x34/0x3c)
   [    5.241867] [<c002e218>] (sys_clone+0x34/0x3c) from [<c002ae80>] (ret_fast_syscall+0x0/0x28)
   systems.
   Segmentation fault
   [    5.264718] Slab corruption: names_cache start=df9f9000, len=4096

although the typical case is that it just hangs without printing out
much.

// Simon