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System Hangs, unresponsive, Stop-A doesn't work.
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kkunkel
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Joined: 09 Feb 2006
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PostPosted: Thu Feb 09, 2006 3:40 pm    Post subject: System Hangs, unresponsive, Stop-A doesn't work. Reply with quote

Hello, I've got an UltraSPARC10 running the 2.6.14.4 kernel. It is itermittenly hanging. Usually without an error. I did get this today however:

Feb 9 09:56:41 sparky Unable to handle kernel NULL pointer dereference
Feb 9 09:56:41 sparky tsk->{mm,active_mm}->context = 00000000000002b0
Feb 9 09:56:41 sparky tsk->{mm,active_mm}->pgd = fffff8001391c000
Feb 9 09:56:41 sparky \|/ ____ \|/
Feb 9 09:56:41 sparky "@'/ .. \`@"
Feb 9 09:56:41 sparky /_| \__/ |_\
Feb 9 09:56:41 sparky \__U_/
Feb 9 09:56:41 sparky zcat(6843): Oops [#1]
Feb 9 09:56:41 sparky TSTATE: 0000009911009605 TPC: 000000000047f92c TNPC: 000000000047f930 Y: 00000000 Not tainted
Feb 9 09:56:41 sparky TPC: <__remove_shared_vm_struct+0x6c/0xa0>
Feb 9 09:56:41 sparky g0: 0000000000000000 g1: 0000000000000000 g2: 0000000000100877 g3: 0000000000000078
Feb 9 09:56:41 sparky g4: fffff80017c3b5e0 g5: 0000000000000018 g6: fffff80000470000 g7: 0000000000000039
Feb 9 09:56:41 sparky o0: 0000000000000001 o1: fffff80017c5f3e8 o2: 0000000000000000 o3: 0000000000000000
Feb 9 09:56:41 sparky o4: 00000000eff71fff o5: 00000000eff72000 sp: fffff80000473201 ret_pc: 000000000048e968
Feb 9 09:56:41 sparky RPC: <fput+0x8/0x40>
Feb 9 09:56:41 sparky l0: fffff800006d6248 l1: fffff80012264528 l2: fffff80013ef5280 l3: fffff80017f301a0
Feb 9 09:56:41 sparky l4: ffffffffff800000 l5: 0000000000800000 l6: fffff8001391c004 l7: 0000000000000000
Feb 9 09:56:41 sparky i0: fffff800006d6248 i1: fffff80017c5f3c0 i2: fffff80017c69a98 i3: 0000000000000000
Feb 9 09:56:41 sparky i4: 0000000000200200 i5: fffff80000626998 i6: fffff800004732c1 i7: 000000000047f978
Feb 9 09:56:41 sparky I7: <remove_vm_struct+0x18/0x80>
Feb 9 09:56:41 sparky Caller[000000000047f978]: remove_vm_struct+0x18/0x80
Feb 9 09:56:41 sparky Caller[0000000000481c48]: exit_mmap+0x128/0x1a0
Feb 9 09:56:41 sparky Caller[000000000044adec]: mmput+0x2c/0xc0
Feb 9 09:56:41 sparky Caller[000000000044f87c]: do_exit+0xdc/0x3e0
Feb 9 09:56:41 sparky Caller[000000000044fbac]: sys_exit+0xc/0x20
Feb 9 09:56:41 sparky Caller[0000000000407194]: linux_sparc_syscall32+0x34/0x40
Feb 9 09:56:41 sparky Caller[0000000000000000]: _start+0xffffffffffbfc000/0x12
Feb 9 09:56:41 sparky Instruction DUMP: 10680008 c670e008 c25e6010 <d2586008> 40031ec4 9202622c 106fffe8 c45e2028 81cfe008
Feb 9 09:56:41 sparky Fixing recursive fault but reboot is needed!


Is this a hardware or software issue?
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gust4voz
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Joined: 09 Sep 2003
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PostPosted: Thu Feb 09, 2006 5:25 pm    Post subject: Reply with quote

Try a newer kernel first, currently recommended is gentoo-sources-2.6.15-r4.
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Gustavo Zacarias
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egberts
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PostPosted: Thu Feb 09, 2006 5:37 pm    Post subject: Reply with quote

have you done a memory test lately on these sparc? I caught mine this way.

The kernel is fairly stable unless you got experimental drivers installed.
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gust4voz
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PostPosted: Thu Feb 09, 2006 6:02 pm    Post subject: Reply with quote

If it's OOPSing on different situtations then it's a safe bet something hardware-related is broken.
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Gustavo Zacarias
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