Re: 6.8: page fault
On Wed, Nov 04, 2020 at 07:38:53AM +0100, Harald Dunkel wrote:
> Hi folks,
>
> after applying the recent 4 syspatches for 6.8 one (of 5) openBSD
> host ran into the kernel debugger. I missed the error message, but
> on a reboot there was a page fault. On another reboot there was no
> problem any more. log is attached.
>
> I would be glad to help, but I need some advice how to proceed
> if the page fault happens again. Every helpful comment is highly
> appreciated.
The output of "trace" and "show registers" at the ddb prompt would
be helpful.
Building a 6.8 amd64 kernel and looking at that function points to
sys/dev/pci/drm/i915/i915_vma.c:1032 so it seems something is wrong with
the vma function argument used in
struct i915_address_space *vm = vma->vm;
The vma code has changed in -current so behaviour there may be different.
>
> Harri
> {hdunkel@dpcl082:~ 07:14:57 (local) 501} ssh -x -p 3011
> ad...@ts02.peppercon.aixigo.de
>
> ddb{2}>
> ddb{2}> boot reboot
> rebooting...
> ÿü 21929
> Ùê612 312193129b2192129I
> 39 39393
> 2129219929
> 9191292131119219
> 31293933199991{kþÞ×Þ× !"BBB@ÂB""BBBÂ"BBBÂ>>
> OpenBSD/amd64 BOOT 3.52
> boot>
> NOTE: random seed is being reused.
> booting hd0a:/bsd: 14415144+3195912+344096+0+880640
> [1004551+128+1138200+861220]=0x14d6ac8
> entry point at 0x81001000
> [ using 3005128 bytes of bsd ELF symbol table ]
> Copyright (c) 1982, 1986, 1989, 1991, 1993
> The Regents of the University of California. All rights reserved.
> Copyright (c) 1995-2020 OpenBSD. All rights reserved. https://www.OpenBSD.org
>
> OpenBSD 6.8 (GENERIC.MP) #1: Tue Nov 3 09:06:04 MST 2020
>
> r...@syspatch-68-amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
> real mem = 8478871552 (8086MB)
> avail mem = 8206848000 (7826MB)
> random: good seed from bootblocks
> mpath0 at root
> scsibus0 at mpath0: 256 targets
> mainbus0 at root
> bios0 at mainbus0: SMBIOS rev. 3.0 @ 0xecef0 (51 entries)
> bios0: vendor American Megatrends Inc. version "5.11" date 04/08/2016
> bios0: Default string Default string
> acpi0 at bios0: ACPI 5.0
> acpi0: sleep states S0 S4 S5
> acpi0: tables DSDT FACP APIC FPDT FIDT MCFG SSDT SSDT SSDT UEFI LPIT CSRT
> acpi0: wakeup devices BRC1(S0) XHC1(S4) HDEF(S4) RP01(S4) PXSX(S4) RP02(S4)
> PXSX(S4) RP03(S4) PXSX(S4) RP04(S4) PXSX(S4)
> acpitimer0 at acpi0: 3579545 Hz, 24 bits
> acpimadt0 at acpi0 addr 0xfee0: PC-AT compat
> cpu0 at mainbus0: apid 0 (boot processor)
> cpu0: Intel(R) Celeron(R) CPU N3160 @ 1.60GHz, 1680.39 MHz, 06-4c-04
> cpu0:
> FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,AES,RDRAND,NXE,RDTSCP,LONG,LAHF,3DNOWP,PERF,ITSC,TSC_ADJUST,SMEP,ERMS,MD_CLEAR,IBRS,IBPB,STIBP,SENSOR,ARAT,MELTDOWN
> cpu0: 1MB 64b/line 16-way L2 cache
> cpu0: smt 0, core 0, package 0
> mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges
> cpu0: apic clock running at 79MHz
> cpu0: mwait min=64, max=64, C-substates=0.2.0.0.0.0.3.3, IBE
> cpu1 at mainbus0: apid 2 (application processor)
> cpu1: Intel(R) Celeron(R) CPU N3160 @ 1.60GHz, 1679.95 MHz, 06-4c-04
> cpu1:
> FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,AES,RDRAND,NXE,RDTSCP,LONG,LAHF,3DNOWP,PERF,ITSC,TSC_ADJUST,SMEP,ERMS,MD_CLEAR,IBRS,IBPB,STIBP,SENSOR,ARAT,MELTDOWN
> cpu1: 1MB 64b/line 16-way L2 cache
> cpu1: smt 0, core 1, package 0
> cpu2 at mainbus0: apid 4 (application processor)
> cpu2: Intel(R) Celeron(R) CPU N3160 @ 1.60GHz, 1599.97 MHz, 06-4c-04
> cpu2:
> FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,AES,RDRAND,NXE,RDTSCP,LONG,LAHF,3DNOWP,PERF,ITSC,TSC_ADJUST,SMEP,ERMS,MD_CLEAR,IBRS,IBPB,STIBP,SENSOR,ARAT,MELTDOWN
> cpu2: 1MB 64b/line 16-way L2 cache
> cpu2: smt 0, core 2, package 0
> cpu3 at mainbus0: apid 6 (application processor)
> cpu3: Intel(R) Celeron(R) CPU N3160 @ 1.60GHz, 1599.96 MHz, 06-4c-04
> cpu3:
> FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,AES,RDRAND,NXE,RDTSCP,LONG,LAHF,3DNOWP,PERF,ITSC,TSC_ADJUST,SMEP,ERMS,MD_CLEAR,IBRS,IBPB,STIBP,SENSOR,ARAT,MELTDOWN
> cpu3: 1MB 64b/line 16-way L2 cache
> cpu3: smt 0, core 3, package 0
> ioapic0 at mainbus0: apid 1 pa 0xfec0, version 20, 115 pins
> acpimcfg0 at acpi0
> acpimcfg0: addr 0xe000, bus 0-255
> acpiprt0 at acpi0: bus 0 (PCI0)
> acpiprt1 at acpi0: bus 1 (RP01)
>
6.8: page fault
Hi folks,
after applying the recent 4 syspatches for 6.8 one (of 5) openBSD
host ran into the kernel debugger. I missed the error message, but
on a reboot there was a page fault. On another reboot there was no
problem any more. log is attached.
I would be glad to help, but I need some advice how to proceed
if the page fault happens again. Every helpful comment is highly
appreciated.
Harri
{hdunkel@dpcl082:~ 07:14:57 (local) 501} ssh -x -p 3011
ad...@ts02.peppercon.aixigo.de
ddb{2}>
ddb{2}> boot reboot
rebooting...
ÿü 21929
Ùê612 312193129b2192129I
39 39393
2129219929
9191292131119219
31293933199991{kþÞ×Þ× !"BBB@ÂB""BBBÂ"BBBÂ>> OpenBSD/amd64
BOOT 3.52
boot>
NOTE: random seed is being reused.
booting hd0a:/bsd: 14415144+3195912+344096+0+880640
[1004551+128+1138200+861220]=0x14d6ac8
entry point at 0x81001000
[ using 3005128 bytes of bsd ELF symbol table ]
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
Copyright (c) 1995-2020 OpenBSD. All rights reserved. https://www.OpenBSD.org
OpenBSD 6.8 (GENERIC.MP) #1: Tue Nov 3 09:06:04 MST 2020
r...@syspatch-68-amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 8478871552 (8086MB)
avail mem = 8206848000 (7826MB)
random: good seed from bootblocks
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 3.0 @ 0xecef0 (51 entries)
bios0: vendor American Megatrends Inc. version "5.11" date 04/08/2016
bios0: Default string Default string
acpi0 at bios0: ACPI 5.0
acpi0: sleep states S0 S4 S5
acpi0: tables DSDT FACP APIC FPDT FIDT MCFG SSDT SSDT SSDT UEFI LPIT CSRT
acpi0: wakeup devices BRC1(S0) XHC1(S4) HDEF(S4) RP01(S4) PXSX(S4) RP02(S4)
PXSX(S4) RP03(S4) PXSX(S4) RP04(S4) PXSX(S4)
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpimadt0 at acpi0 addr 0xfee0: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Celeron(R) CPU N3160 @ 1.60GHz, 1680.39 MHz, 06-4c-04
cpu0:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,AES,RDRAND,NXE,RDTSCP,LONG,LAHF,3DNOWP,PERF,ITSC,TSC_ADJUST,SMEP,ERMS,MD_CLEAR,IBRS,IBPB,STIBP,SENSOR,ARAT,MELTDOWN
cpu0: 1MB 64b/line 16-way L2 cache
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges
cpu0: apic clock running at 79MHz
cpu0: mwait min=64, max=64, C-substates=0.2.0.0.0.0.3.3, IBE
cpu1 at mainbus0: apid 2 (application processor)
cpu1: Intel(R) Celeron(R) CPU N3160 @ 1.60GHz, 1679.95 MHz, 06-4c-04
cpu1:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,AES,RDRAND,NXE,RDTSCP,LONG,LAHF,3DNOWP,PERF,ITSC,TSC_ADJUST,SMEP,ERMS,MD_CLEAR,IBRS,IBPB,STIBP,SENSOR,ARAT,MELTDOWN
cpu1: 1MB 64b/line 16-way L2 cache
cpu1: smt 0, core 1, package 0
cpu2 at mainbus0: apid 4 (application processor)
cpu2: Intel(R) Celeron(R) CPU N3160 @ 1.60GHz, 1599.97 MHz, 06-4c-04
cpu2:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,AES,RDRAND,NXE,RDTSCP,LONG,LAHF,3DNOWP,PERF,ITSC,TSC_ADJUST,SMEP,ERMS,MD_CLEAR,IBRS,IBPB,STIBP,SENSOR,ARAT,MELTDOWN
cpu2: 1MB 64b/line 16-way L2 cache
cpu2: smt 0, core 2, package 0
cpu3 at mainbus0: apid 6 (application processor)
cpu3: Intel(R) Celeron(R) CPU N3160 @ 1.60GHz, 1599.96 MHz, 06-4c-04
cpu3:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,AES,RDRAND,NXE,RDTSCP,LONG,LAHF,3DNOWP,PERF,ITSC,TSC_ADJUST,SMEP,ERMS,MD_CLEAR,IBRS,IBPB,STIBP,SENSOR,ARAT,MELTDOWN
cpu3: 1MB 64b/line 16-way L2 cache
cpu3: smt 0, core 3, package 0
ioapic0 at mainbus0: apid 1 pa 0xfec0, version 20, 115 pins
acpimcfg0 at acpi0
acpimcfg0: addr 0xe000, bus 0-255
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus 1 (RP01)
acpiprt2 at acpi0: bus 2 (RP02)
acpiprt3 at acpi0: bus 3 (RP03)
acpiprt4 at acpi0: bus 4 (RP04)
acpiec0 at acpi0: not present
acpicmos0 at acpi0
acpipci0 at acpi0 PCI0: 0x0004 0x0011 0x0001
"INTCF1C" at acpi0 not configured
acpibtn0 at acpi0: SLPB
"PNP0C0B" at acpi0 not configured
acpicpu0 at acpi0: C1(@1 halt!), PSS
acpicpu1 at acpi0: C1(@1 halt!), PSS
acpicpu2 at acpi0: C1(@1 halt!), PSS
acpicpu3 at acpi0: C1(@1 halt!), PSS
acpipwrres0 at acpi0: ID3C, resource for ISP3
acpipwrres1 at acpi0: CLK0, resource for CAMD
acpipwrres2 at acpi0: CLK0, resource for CAM1
acpipwrres3 at acpi0: CLK1, resource for
