Martin J. Bligh wrote:
Martin J. Bligh wrote:
Panic on PPC64. I'm guessing it's the same as the i386 panics I sent
you yesterday, just more cryptic ;-) But for the record ...
http://test.kernel.org/abat/37737/debug/console.log
cpu 0x2: Vector: 300 (Data Access) at [c0000000f99f78c0]
pc: c0000000000c6a34: .s_show+0x178/0x364
lr: c0000000000c696c: .s_show+0xb0/0x364
sp: c0000000f99f7b40
msr: 8000000000001032
dar: fd528000
dsisr: 40000000
current = 0xc0000000f23e0000
paca = 0xc00000000046e300
pid = 17653, comm = cp
enter ? for help
Eeek, this is definitely an intermittent thing. I was trawling older
results, and it shows up (on PPC only) in 2.6.17-git10, so it's not
just an -mm thing ;-(
OK, still happens in -mm3, though in a different workload now. I also
get a new panic, that's maybe related but more informative
cpu 0x0: Vector: 700 (Program Check) at [c0000000024938b0]
pc: c0000000000c3218: .free_block+0xe4/0x240
lr: c0000000000c3514: .drain_array+0xf4/0x170
sp: c000000002493b30
msr: 8000000000021032
current = 0xc0000000025457f0
paca = 0xc0000000004f9f00
pid = 14, comm = events/0
kernel BUG in list_del at include/linux/list.h:160!
Plus one with an actual backtrace from PPC64 that looks more like the
i386 ones
SMP NR_CPUS=32 NUMA
Modules linked in:
NIP: C0000000000A311C LR: C0000000000A30D4 CTR: C0000000000A3024
REGS: c0000007725b38d0 TRAP: 0300 Not tainted (2.6.17-mm3-autokern1)
MSR: 8000000000001032 <ME,IR,DR> CR: 28224424 XER: 00000000
DAR: 000000077BCC6180, DSISR: 0000000040000000
TASK = c00000002fc74670[29812] 'cp' THREAD: c0000007725b0000 CPU: 2
GPR00: 0000000000000000 C0000007725B3B50 C00000000063B828 C00000001E303EC0
GPR04: 0000000000000010 0000000000000000 0000000000000000 FFFFFFFFFFFFFFFD
GPR08: 0000000000000001 0000000000000000 000000077BCC6180 0000000000000000
GPR12: 0000000000000000 C00000000051FF80 0000000000000000 0000000000000001
GPR16: 0000000000000000 0000000000000004 0000000000020000 0000000000000000
GPR20: 0000000000000000 0000000000000000 C0000007759F9D00 0000000000000000
GPR24: 0000000000000E42 0000000000000000 000000000000474A C00000001E30F300
GPR28: 0000000000000000 0000000000000000 C000000000537288 C00000001E303E80
NIP [C0000000000A311C] .s_show+0xf8/0x364
LR [C0000000000A30D4] .s_show+0xb0/0x364
Call Trace:
[C0000007725B3B50] [C0000000000A3334] .s_show+0x310/0x364 (unreliable)
[C0000007725B3C20] [C0000000000D5E84] .seq_read+0x2f4/0x450
[C0000007725B3D00] [C0000000000AADF8] .vfs_read+0xe0/0x1b4
[C0000007725B3D90] [C0000000000AAFD4] .sys_read+0x54/0x98
[C0000007725B3E30] [C00000000000871C] syscall_exit+0x0/0x40
Instruction dump:
3b180001 7c004a78 79290020 7c0bfe70 7f5a4a14 7d600278 7c005850 54000ffe
7c094038 2c090000 41820008 ebbe80b0 <e96a0000> 2fab0000 419e0008 7c005a2c
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