On 4-Nov-12, at 8:54 PM, Michel Lespinasse wrote:
On Sun, Nov 4, 2012 at 4:29 PM, John David Anglin <dave.anglin@xxxxxxxx
> wrote:
I have the sense that this may fix
http://thread.gmane.org/gmane.linux.ports.parisc/4027/focus=4278
as I haven't seen the problem since I added the above change to my
patch list.
I don't have parisc machines myself to test on; however if you could
confirm that this workload does cause arch_get_unmapped_area() to be
called with (flags & MAP_SHARED) set and (pgoff % 1024) != 0, I think
this would be a good enough smoking gun to blame the bug on this.
I tried the above but it doesn't trigger. However, I can still
generate the
problem. Going back GCC revison 181500, I had a couple of hangs in
cc1plus. Attached is the sysrq state for the process. The system
crashed
almost immediately after I issued did the sysrq.
Dave
--
John David Anglin dave.anglin@xxxxxxxx
With GCC revision 181500:
cc1plus R running task 0 4623 4621 0x00000010
Backtrace:
[<00000000401191f8>] __schedule+0x298/0x608
[<0000000040119698>] schedule+0x38/0x90
[<0000000040105074>] intr_return+0x0/0x4
timer_interrupt(CPU 2): delayed! cycles 9456AFC7 rem DEA47 next/now 16C3418E5311/16C3418068CA
mx3210 login: timer_interrupt(CPU 0): delayed! cycles DFC6D584E rem 13F38E next/now 16FCCB60DE51/16FCCB4CEAC3
BUG: soft lockup - CPU#3 stuck for 4282963078s! [cc1plus:4623]
BUG: soft lockup - CPU#1 stuck for 4282963078s! [swapper/1:0]
BUG: soft lockup - CPU#2 stuck for 4282963078s! [swapper/2:0]
Modules linked in:
Modules linked in:
Modules linked in:
nfsv3
nfsv3
nfsv3
nfsd
nfsd
exportfs
exportfs
nfs_acl
nfs_acl
nfsd
nfs
exportfs
lockd
nfs_acl
nfs
sunrpc
lockd
ipv6
sunrpc
ext2
nfs
ext3
lockd
mbcache
sunrpc
jbd
ipv6
ipv6
ext2
ext2
zalon7xx
ext3
ext3
lasi700
mbcache
53c700
mbcache
hilkbd
jbd
sd_mod
jbd
zalon7xx
zalon7xx
crc_t10dif
lasi700
lasi700
53c700
53c700
hilkbd
sg
hilkbd
sr_mod
sd_mod
sd_mod
crc_t10dif
crc_t10dif
cdrom
sg
sg
sr_mod
sr_mod
sym53c8xx
cdrom
cdrom
sym53c8xx
sym53c8xx
pata_cmd64x
pata_cmd64x
pata_cmd64x
scsi_transport_spi
scsi_transport_spi
scsi_transport_spi
libata
libata
libata
tg3
tg3
scsi_mod
scsi_mod
YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001111 Not tainted
tg3 scsi_mod
r00-03 000000ff0804ff0f 000000004065cd20 00000000401277a8 000000007f4d81e0
r04-07 000000004064c520 0000000000000002 00000000fffffff0 0000000000000002
YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
r08-11 000000f0f0d08440 0200000000000000 000000000804000e 0000000040673554
PSW: 00001000000001001111111100001111 Not tainted
r12-15 ffffffffffffffff 7fffffffffffffff ffffffffffffffff ffffffffffffffff
r16-19 fffffff0f0d00b0c ffffffffffff7fbf ffffffffffffffff 000000000800000e
r00-03 000000ff0804ff0f 000000004065cd20 00000000401277a8 000000007f4d41e0
r20-23 0000000002185000 0000000000000001 000000007cf81380 000000000800000e
r04-07 000000004064c520 0000000000000001 00000000fffffff0 0000000000000001
r24-27 000000000800000e 000000007f5f8810 0000000042824ba0 000000004064c520
r08-11 000000f0f0d08440 0100000000000000 000000000804000e 0000000040673554
r28-31 0000000000000008 000000007f4d81e0 000000007f4d8210 0000000000000001
r12-15 ffffffffffffff7f bffffffff6ff5ffe ffffffffffffffff ffffffffffffffff
sr00-03 000000000069a000 000000000069a000 0000000000000000 000000000069a000
r16-19 fffffff0f0d00b0c fdffdffff6be5ffe fffffffffffffffe 000000000800000e
sr04-07 0000000000000000 0000000000000000 0000000000000000 0000000000000000
r20-23 000000000217b000 000000007f5a23c0 000000007cc7b080 000000000800000e
IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401277bc 00000000401277c0
r24-27 000000000800000e 000000007ee0b0b8 000000004281aba0 000000004064c520
r28-31 000000007f4d4000 000000007f4d41e0 000000007f4d4210 0000000000000001
sr00-03 0000000000831000 0000000000000000 0000000000000000 0000000000831000
IIR: 03c008bc ISR: 00000000406a0bc0 IOR: 0000000000000002
sr04-07 0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr00-03 0000000007e77000 0000000007e77000 0000000000000000 0000000007e77000
sr04-07 0000000007e77000 0000000007e77000 0000000007e77000 0000000007e77000
IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401277c0 00000000401277c4
CPU: 2 CR30: 000000007f4d8000 CR31: ffffffffffffffff
ORIG_R28: 000000007f4d83f0
IIR: 539c0020 ISR: 00000000406a0bc0 IOR: 0000000000000001
IAOQ[0]: cpu_idle+0x7c/0xb0
VZOUICununcqcqcqcqcqcrmunTDVZOUI
IAOQ[1]: cpu_idle+0x80/0xb0
CPU: 1 CR30: 000000007f4d4000 CR31: ffffffffffffffff
RP(r2): cpu_idle+0x68/0xb0
FPSR: 00001000000000000000000000000000
ORIG_R28: 000000007f4d43f0
FPER1: 00000000
IAOQ[0]: cpu_idle+0x80/0xb0
Backtrace:
fr00-03 0800000000000000 0000000000000000 0000000000000000 0000000000000000
[<00000000406736f4>] smp_callin+0x1a4/0x1c0
IAOQ[1]: cpu_idle+0x84/0xb0
fr04-07 000000004064c520 0000000000000000 0000000040540000 4090000000000000
RP(r2): cpu_idle+0x68/0xb0
fr08-11 0000000040145b10 0000000000000001 00000000405e39b8 000000004065ad20
Backtrace:
fr12-15 0000000000000001 0000000000000006 00000000405e4690 0000000042811bc0
timer_interrupt(CPU 2): delayed! cycles DFC46740F rem A03B2 next/now 16FCCB5EEBFF/16FCCB54E84D
fr16-19 000000007f47b038 0000000000000000 0000000000000000 000000000800000f
[<00000000406736f4>] smp_callin+0x1a4/0x1c0
fr20-23 0000000000000000 00000000405e39ba 0000000000000054 49ef4e8000400000
fr24-27 4a80000000000000 0000000000000006 000000004054e174 0000000000000001
fr28-31 00000000405e39b8 000000004064c520 0000000000000028 0000000000000000
IASQ: 0000000007e77000 0000000007e77000 IAOQ: 0000000004017df3 0000000004017df7
IIR: 0e7c2093 ISR: 0000000007e77000 IOR: 0000000040483000
CPU: 3 CR30: 0000000044458000 CR31: ffffffffffffffff
ORIG_R28: 0000000000000000
IAOQ[0]: 0000000004017df3
IAOQ[1]: 0000000004017df7
timer_interrupt(CPU 1): delayed! cycles DFC5623DE rem 2B27FE next/now 16FCCB80B46A/16FCCB558C6C
RP(r2): 0000000004017f97
timer_interrupt(CPU 3): delayed! cycles DF942EF19 rem 46F8 next/now 16FCCB561D0C/16FCCB55D614
Backtrace:
[<0000000040128f14>] ipi_interrupt+0x184/0x200
[<000000004019f734>] handle_irq_event_percpu+0xb4/0x308
[<00000000401a3f48>] handle_percpu_irq+0xa0/0xd8
[<000000004019ebb8>] generic_handle_irq+0x40/0x50
[<00000000401205a4>] do_cpu_irq_mask+0x1ac/0x298
[<0000000040105074>] intr_return+0x0/0x4
Kernel Fault: Code=26 regs=000000007d079130 (Addr=400000000000002f)
YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001110 Not tainted
r00-03 000000000804000e 000000000804000e 0000000040128f14 7fffffffffffffff
r04-07 000000004064c520 0000000000000001 0000000000000000 000000007d079100
r08-11 0000000000000004 000000004066ad20 0000000000200200 00000000405141d0
r12-15 fffffffffffffffb 000000004065c520 00000000405141c0 0000000000000002
r16-19 0000000000000006 000000004062e820 0000000040597f00 0000000000000002
r20-23 000000000800000e 0000000000000009 000000000800000e 0000000000000000
r24-27 0000000000000001 0000000000000000 0000000000000000 000000004064c520
r28-31 7fffffffffffffff 0000000000000000 000000007d079130 0000000000000002
sr00-03 0000000000705800 0000000000000000 0000000000000000 0000000000705800
sr04-07 0000000000000000 0000000000000000 0000000000000000 0000000000000000
IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040193b48 0000000040193b4c
IIR: 0c7020dc ISR: 0000000000000000 IOR: 400000000000002f
CPU: 2 CR30: 000000007d078000 CR31: ffffffffffffffff
ORIG_R28: 0000000000000000
IAOQ[0]: generic_smp_call_function_interrupt+0xf0/0x2e0
IAOQ[1]: generic_smp_call_function_interrupt+0xf4/0x2e0
RP(r2): ipi_interrupt+0x184/0x200
Backtrace:
[<0000000040128f14>] ipi_interrupt+0x184/0x200
[<000000004019f734>] handle_irq_event_percpu+0xb4/0x308
[<00000000401a3f48>] handle_percpu_irq+0xa0/0xd8
[<000000004019ebb8>] generic_handle_irq+0x40/0x50
[<00000000401205a4>] do_cpu_irq_mask+0x1ac/0x298
[<0000000040105074>] intr_return+0x0/0x4
Kernel panic - not syncing: Kernel Fault
break 0,0: pid=2893 command='nscd'
YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001110 Not tainted
r00-03 000000000804000e 0000000040000000 400000000000002f 0000000040540000
r04-07 000000004064c520 000000000800000e 0000000000000000 000000000000001a
r08-11 400000000000002f 000000004066ad20 0000000000200200 00000000405141d0
r12-15 fffffffffffffffb 000000004065c520 00000000405141c0 0000000000000002
r16-19 000000007d079130 000000004062e820 0000000040597f00 00000000000001ff
r20-23 000000000000ea60 0000000000000500 0000000000000001 00000000044598f8
r24-27 0000000000000000 00000000000003e8 000000007d079618 000000004064c520
r28-31 ffffffffffffffff 00000000005c1888 000000007d0797a0 0000000000401822
sr00-03 0000000000705800 0000000000000000 0000000000000000 0000000000705800
sr04-07 0000000000000000 0000000000000000 0000000000000000 0000000000000000
IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004012828c 4000000000000033
IIR: fffffff0f0ffffa4 ISR: 0000000000000041 IOR: 0000000000000000
CPU: 2 CR30: 000000007d078000 CR31: ffffffffffffffff
ORIG_R28: ffffffffffffffff
IAOQ[0]: pdc_chassis_send_status+0x8c/0xf0
IAOQ[1]: 0x4000000000000033
RP(r2): 0x400000000000002f
Backtrace:
[<00000000402b8078>] vsnprintf+0x198/0x4d0
_______________________________
< Your System ate a SPARC! Gah! >
-------------------------------
\ ^__^
(__)\ )\/\
U ||----w |
|| ||
nscd (pid 2893): Illegal instruction (code 8)
YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001110 Not tainted
r00-03 000000000804000e 0000000040000000 00000000402b8078 0000000040540000
r04-07 000000004064c520 000000000800000e 0000000000000000 000000000000001a
r08-11 400000000000002f 000000004066ad20 0000000000200200 00000000405141d0
r12-15 fffffffffffffffb 000000004065c520 00000000405141c0 0000000000000002
r16-19 000000007d079130 000000004062e820 0000000040597f00 00000000000001ff
r20-23 000000000000ea60 0000000000000500 0000000000000001 00000000044598f8
r24-27 0000000000000000 00000000000003e8 000000007d079618 000000004064c520
r28-31 ffffffffffffffff 00000000005c1888 000000007d079720 0000000000401822
sr00-03 0000000000705800 0000000000000000 0000000000000000 0000000000705800
sr04-07 0000000000000000 0000000000000000 0000000000000000 0000000000000000
IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000402b8078 00000000402b807c
IIR: 00000204 ISR: 0000000000705800 IOR: 0000000000000000
CPU: 2 CR30: 000000007d078000 CR31: ffffffffffffffff
ORIG_R28: a0e008c01100b009
IAOQ[0]: vsnprintf+0x198/0x4d0
IAOQ[1]: vsnprintf+0x19c/0x4d0
RP(r2): vsnprintf+0x198/0x4d0
Backtrace:
Backtrace:
[<000000004011e458>] dump_stack+0x18/0x28
[<000000004011eacc>] die_if_kernel+0xfc/0x268
[<000000004011f4e4>] handle_interruption+0x4b4/0x860
[<00000000402b8078>] vsnprintf+0x198/0x4d0
_______________________________
< Your System ate a SPARC! Gah! >
-------------------------------
\ ^__^
(__)\ )\/\
U ||----w |
|| ||
nscd (pid 2893): Illegal instruction (code 8)
die_if_kernel() recursion detected.
timer_interrupt(CPU 0): delayed! cycles 16FCAF57713B rem B4695 next/now 16FCF1E47C50/16FCF1D935BB
BUG: soft lockup - CPU#0 stuck for 29423s! [swapper/0:0]
Modules linked in: nfsv3 nfsd exportfs nfs_acl nfs lockd sunrpc ipv6 ext2 ext3 mbcache jbd zalon7xx lasi700 53c700 hilkbd sd_mod crc_t10dif sg sr_mod cdrom sym53c8xx pata_cmd64x scsi_transport_spi libata tg3 scsi_mod
YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001111 Tainted: G D
r00-03 000000ff0804ff0f 0000000040669d20 0000000040105074 000000000800000e
r04-07 000000004064c520 0000000000000002 0000000000000fff 0000000040510930
r08-11 0000000040514080 000000000000000a 00000000405e46c0 0000000040669d20
r12-15 000000004066a520 0000000000000000 0000000000200000 000000004065b520
r16-19 0000000040510ca0 00000000ffffffff 00000000ffffffff 00000000405334f0
r20-23 0000000042810020 ffffffffffffffff ffe0000000000000 8000000000000000
r24-27 0000000000000001 0000000040518200 0000000042810ba0 000000004064c520
r28-31 0000000042811510 0000000040511180 0000000040510fe0 0000000002171000
sr00-03 0000000000683800 0000000000000000 0000000000000000 0000000000683800
sr04-07 0000000000000000 0000000000000000 0000000000000000 0000000000000000
IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040105078 000000004010507c
IIR: 03c008a1 ISR: 000000004064c520 IOR: 000000004064c520
CPU: 0 CR30: 0000000040510000 CR31: e001013408940000
ORIG_R28: 000000004064c520
IAOQ[0]: intr_check_resched+0x0/0xc
IAOQ[1]: intr_check_resched+0x4/0xc
RP(r2): intr_return+0x0/0x4
Backtrace:
[<000000004019f7a0>] handle_irq_event_percpu+0x120/0x308
[<0000000040105074>] intr_return+0x0/0x4
[<000000004018767c>] update_wall_time+0x79c/0x880
[<000000004011ac54>] do_softirq+0x64/0x68
[<00000000401277bc>] cpu_idle+0x7c/0xb0
timer_interrupt(CPU 0): delayed! cycles 16FCBF1A8A01 rem 1CF290 next/now 16FCFF88BE51/16FCFF6BCBC1
Backtrace:
[<0000000040128f14>] ipi_interrupt+0x184/0x200
[<000000004019f734>] handle_irq_event_percpu+0xb4/0x308
[<00000000401a3f48>] handle_percpu_irq+0xa0/0xd8
[<000000004019ebb8>] generic_handle_irq+0x40/0x50
[<00000000401205a4>] do_cpu_irq_mask+0x1ac/0x298
[<0000000040105074>] intr_return+0x0/0x4
[<000000004019f7a0>] handle_irq_event_percpu+0x120/0x308
[<0000000040105074>] intr_return+0x0/0x4
[<000000004019f7a0>] handle_irq_event_percpu+0x120/0x308
[<0000000040105074>] intr_return+0x0/0x4
[<000000004019f7a0>] handle_irq_event_percpu+0x120/0x308
[<0000000040105074>] intr_return+0x0/0x4
[<000000004019f7a0>] handle_irq_event_percpu+0x120/0x308
[<0000000040105074>] intr_return+0x0/0x4
[<000000004018767c>] update_wall_time+0x79c/0x880
[<000000004011ac54>] do_softirq+0x64/0x68
Kernel Fault: Code=26 regs=0000000040511e40 (Addr=800000000000002f)
YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001110 Tainted: G D
r00-03 000000000804000e 000000000804000e 0000000040128f14 bfffffffffffffff
r04-07 000000004064c520 0000000000000001 0000000000000000 0000000040511e10
r08-11 0000000000000001 000000004066ad20 0000000000200200 00000000405141d0
r12-15 fffffffffffffffe 000000004065c520 00000000405141c0 0000000000000000
r16-19 0000000000000006 000000004062e820 0000000040597f00 0000000000000000
r20-23 000000000800000e 0000000000000000 000000000800000e 0000000000000000
r24-27 0000000000000001 0000000000000000 000000004281c480 000000004064c520
r28-31 bfffffffffffffff 0000000040511e10 0000000040511e40 0000000042810020
sr00-03 0000000000683800 0000000000000000 0000000000000000 0000000000683800
sr04-07 0000000000000000 0000000000000000 0000000000000000 0000000000000000
IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040193b48 0000000040193b4c
IIR: 0c7020dc ISR: 0000000000000000 IOR: 800000000000002f
CPU: 0 CR30: 0000000040510000 CR31: e001013408940000
ORIG_R28: 0000000000000000
IAOQ[0]: generic_smp_call_function_interrupt+0xf0/0x2e0
IAOQ[1]: generic_smp_call_function_interrupt+0xf4/0x2e0
RP(r2): ipi_interrupt+0x184/0x200
Backtrace:
[<0000000040128f14>] ipi_interrupt+0x184/0x200
[<000000004019f734>] handle_irq_event_percpu+0xb4/0x308
[<00000000401a3f48>] handle_percpu_irq+0xa0/0xd8
[<000000004019ebb8>] generic_handle_irq+0x40/0x50
[<00000000401205a4>] do_cpu_irq_mask+0x1ac/0x298
[<0000000040105074>] intr_return+0x0/0x4
[<000000004019f7a0>] handle_irq_event_percpu+0x120/0x308
[<0000000040105074>] intr_return+0x0/0x4
[<000000004019f7a0>] handle_irq_event_percpu+0x120/0x308
[<0000000040105074>] intr_return+0x0/0x4
[<000000004019f7a0>] handle_irq_event_percpu+0x120/0x308
[<0000000040105074>] intr_return+0x0/0x4
[<000000004019f7a0>] handle_irq_event_percpu+0x120/0x308
[<0000000040105074>] intr_return+0x0/0x4
[<000000004018767c>] update_wall_time+0x79c/0x880
[<000000004011ac54>] do_softirq+0x64/0x68
