Re: [Bugme-new] [Bug 10309] New: BUG: soft lockup - CPU#0 stuck

(switched to email.  Please respond via emailed reply-to-all, not via the
bugzilla web interface).

On Sat, 22 Mar 2008 06:53:40 -0700 (PDT) bugme-daemon@bugzilla.kernel.org wrote:

http://bugzilla.kernel.org/show_bug.cgi?id=10309

           Summary: BUG: soft lockup - CPU#0 stuck
           Product: Platform Specific/Hardware
           Version: 2.5
     KernelVersion: 2.6.24.3
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: SPARC64
        AssignedTo: platform_sparc64@kernel-bugs.osdl.org
        ReportedBy: arnova@eld.physics.leidenuniv.nl


Earliest failing kernel version: 2.6.24.3
Distribution: Debian 4.0/Etch Sparc64
Hardware Environment: Sparc64
Problem Description:
During boot of my Sparc64 with a vanille 2.6.24.3 kernel the kernel gets stuck.
After while it continues allowing normal use of the machine. The message shown
in the kernel logs looks like this:

BUG: soft lockup - CPU#0 stuck for 11s! [ifconfig:2408]
TSTATE: 0000004480009603 TPC: 0000000010013390 TNPC: 0000000010013394 Y:
00000000    Not tainted
TPC: <gem_interrupt+0x14/0xec [sungem]>
g0: 0000000000009000 g1: 0800000000000001 g2: 0000000000000100 g3:
0000000000000400
g4: fffff8003e61c060 g5: 0000000000000020 g6: fffff8003e7e8000 g7:
0000000000000000
o0: 0000000000000001 o1: fffff8003d090670 o2: 0000000000000001 o3:
000001fe0000f078
o4: 7fffffffffffffff o5: 0000000080000000 sp: fffff8003e7ea341 ret_pc:
00000000100133bc
RPC: <gem_interrupt+0x40/0xec [sungem]>
l0: fffff8003d090670 l1: 0000000000821400 l2: fffff8003e7eaca0 l3:
0000000000000400
l4: 0000000000000000 l5: 0000000000000005 l6: 0000000000000000 l7:
0000000000000008
i0: 0000000000000009 i1: fffff8003d090620 i2: 000000001c2245fa i3:
000000000000000c
i4: 7fffffffffffffff i5: 0000000000000000 i6: fffff8003e7ea401 i7:
000000000047e974
I7: <handle_IRQ_event+0x34/0x74>

It appartently has to do with the network (ifconfig) although I'm not 100%. I
tried changing several settings in the kernel (to many to write down here) but
all give the same result.

Steps to reproduce:
- Build a 2.6.24.3 for Sparc64
- Boot a SUN Sparc64 machine with this kernel
- System gets stuck during boot but after a while it continues its boot.

I expect it would be useful if you tell us the latest version of the kernel
on which this didn't happen.  ie: what kernel version were you running before
you "up"graded to 2.6.24?

Thanks.