* [Regression] cpu hotplug failed on kernel 2.6.19-rc2
@ 2006-10-17 13:16 Yao Fei Zhu
2006-10-17 16:12 ` Nathan Lynch
0 siblings, 1 reply; 3+ messages in thread
From: Yao Fei Zhu @ 2006-10-17 13:16 UTC (permalink / raw)
To: linuxppc-dev, linux-kernel
Running cpu hotplug regression tsstcase lhcs_regression on kernel 2.6.19-rc2/IBM System p5 will fall into xmon.
1:mon> e
cpu 0x1: Vector: 300 (Data Access) at [c000000023fa3570]
pc: c0000000000abfa0: .__drain_pages+0x50/0xbc
lr: c0000000000abfd8: .__drain_pages+0x88/0xbc
sp: c000000023fa37f0
msr: 8000000000001032
dar: 0
dsisr: 40010000
current = 0xc000000002a5d070
paca = 0xc000000000494800
pid = 3345, comm = hotplug01.sh
1:mon> t
[c000000023fa3890] c0000000000ac040 .page_alloc_cpu_notify+0x34/0x70
[c000000023fa3910] c000000000378190 .notifier_call_chain+0x4c/0x90
[c000000023fa39a0] c000000000076b2c .blocking_notifier_call_chain+0x3c/0x6c
[c000000023fa3a40] c00000000008989c .cpu_down+0x218/0x32c
[c000000023fa3b30] c000000000242a0c .store_online+0x44/0xa0
[c000000023fa3bc0] c00000000023d0e0 .sysdev_store+0x44/0x60
[c000000023fa3c40] c00000000013f160 .sysfs_write_file+0x134/0x1b8
[c000000023fa3cf0] c0000000000dd814 .vfs_write+0x118/0x200
[c000000023fa3d90] c0000000000ddf84 .sys_write+0x4c/0x8c
[c000000023fa3e30] c00000000000871c syscall_exit+0x0/0x40
--- Exception: c01 (System Call) at 000000000fe0de7c
SP (f8ccc0c0) is in userspace
1:mon> r
R00 = 8000000000001032 R16 = 00000000100a0000
R01 = c000000023fa37f0 R17 = 00000000100c2cd8
R02 = c0000000005cc460 R18 = 000000000000003f
R03 = c000000049fff600 R19 = 0000000000000000
R04 = 0000000000000000 R20 = c0000000004c9078
R05 = c000000020dc3250 R21 = 0000000000000005
R06 = 0000000000000000 R22 = c000000000665180
R07 = 0000000000000000 R23 = 0000000000008002
R08 = 0000000000000008 R24 = 0000000000000005
R09 = c000000049fff628 R25 = 0000000000000005
R10 = 0000000000000100 R26 = 0000000000000005
R11 = c000000049fff600 R27 = 0000000000000000
R12 = 0000000000000000 R28 = c000000049fff600
R13 = c000000000494800 R29 = 8000000000001032
R14 = 0000000010080000 R30 = c0000000004d31c8
R15 = 0000000000000000 R31 = 0000000000000000
pc = c0000000000abfa0 .__drain_pages+0x50/0xbc
lr = c0000000000abfd8 .__drain_pages+0x88/0xbc
msr = 8000000000001032 cr = 24242448
ctr = c0000000000ac00c xer = 0000000000000001 trap = 300
dar = 0000000000000000 dsisr = 40010000
1:mon> di c0000000000abfa0
c0000000000abfa0 e89f0002 lwa r4,0(r31)
c0000000000abfa4 7f83e378 mr r3,r28
c0000000000abfa8 38bf0010 addi r5,r31,16
c0000000000abfac 38c00000 li r6,0
c0000000000abfb0 4bfff9c1 bl c0000000000ab970 #
.free_pages_bulk+0x0/0x2b4
c0000000000abfb4 38000000 li r0,0
c0000000000abfb8 901f0000 stw r0,0(r31)
c0000000000abfbc 7fa10164 mtmsrd r29,1
c0000000000abfc0 3b7b0001 addi r27,r27,1
c0000000000abfc4 3bff0020 addi r31,r31,32
c0000000000abfc8 2fbb0002 cmpdi cr7,r27,2
c0000000000abfcc 409effc4 bne cr7,c0000000000abf90 #
.__drain_pages+0x40/0xbc
c0000000000abfd0 7f83e378 mr r3,r28
c0000000000abfd4 48008c09 bl c0000000000b4bdc #
.next_zone+0x0/0x48
c0000000000abfd8 60000000 nop
c0000000000abfdc 2fa30000 cmpdi cr7,r3,0
1:mon> mi
1:mon>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [Regression] cpu hotplug failed on kernel 2.6.19-rc2
2006-10-17 13:16 [Regression] cpu hotplug failed on kernel 2.6.19-rc2 Yao Fei Zhu
@ 2006-10-17 16:12 ` Nathan Lynch
2006-10-17 16:14 ` Yao Fei Zhu
0 siblings, 1 reply; 3+ messages in thread
From: Nathan Lynch @ 2006-10-17 16:12 UTC (permalink / raw)
To: Yao Fei Zhu; +Cc: linuxppc-dev, linux-kernel
Yao Fei Zhu wrote:
> Running cpu hotplug regression tsstcase lhcs_regression on kernel
> 2.6.19-rc2/IBM System p5 will fall into xmon.
Your subject implies this is a regression; what is the most recent
kernel that worked?
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [Regression] cpu hotplug failed on kernel 2.6.19-rc2
2006-10-17 16:12 ` Nathan Lynch
@ 2006-10-17 16:14 ` Yao Fei Zhu
0 siblings, 0 replies; 3+ messages in thread
From: Yao Fei Zhu @ 2006-10-17 16:14 UTC (permalink / raw)
To: Nathan Lynch; +Cc: linuxppc-dev, linux-kernel
Nathan Lynch 写道:
> Yao Fei Zhu wrote:
>
>
>>Running cpu hotplug regression tsstcase lhcs_regression on kernel
>>2.6.19-rc2/IBM System p5 will fall into xmon.
>
>
> Your subject implies this is a regression; what is the most recent
> kernel that worked?
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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> Please read the FAQ at http://www.tux.org/lkml/
>
2.6.18 works. Not tested on 2.6.19-rc1.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2006-10-17 13:16 [Regression] cpu hotplug failed on kernel 2.6.19-rc2 Yao Fei Zhu
2006-10-17 16:12 ` Nathan Lynch
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