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2017年03月24日(金) 旧暦 [n年日記] [更新:"2017/03/25 02:12:30"]

#1 [NetBSD] /var/crash and crash command

If you have crash, the information may have been saved at /var/crash directory. To dig into that info, do following.
sudo -s;
cd /var/crash;
gunzip netbsd.16.gz
gunzip netbsd.16.core.gz
check date
CF-N10@makoto 10:41:35/170325(/var/log)% ls -l /var/crash/*16* 
-rw-------  1 root  wheel    1692465 Mar 12 19:05 /var/crash/netbsd.16
-rw-------  1 root  wheel  210771480 Mar 12 19:05 /var/crash/netbsd.16.core
Mar 12 19:03:40 CF-N10 /netbsd: iwn0: scan request(1) while scanning(0) ignored
Mar 12 19:04:10 CF-N10 /netbsd: acpi0: entering state S3
Mar 12 19:05:02 CF-N10 syslogd[186]: restart
Mar 12 19:05:02 CF-N10 /netbsd: i915drmkms0: interrupting at ioapic0 pin 16 (i915)
Mar 12 19:05:02 CF-N10 /netbsd: drm: Wrong MCH_SSKPD value: 0x17050407
Mar 12 19:05:02 CF-N10 /netbsd: drm: This can cause pipe underruns and display issues.
Mar 12 19:05:02 CF-N10 /netbsd: drm: Please upgrade your BIOS to fix this.
Mar 12 19:05:02 CF-N10 /netbsd: ppb0: PCI Express capability version 2 <Root Port of PCI-E Root Complex> x1 @ 5.0GT/s
Mar 12 19:05:02 CF-N10 /netbsd: ppb1: PCI Express capability version 2 <Root Port of PCI-E Root Complex> x1 @ 5.0GT/s
Mar 12 19:05:02 CF-N10 /netbsd: ppb2: PCI Express capability version 2 <Root Port of PCI-E Root Complex> x1 @ 5.0GT/s
Mar 12 19:05:02 CF-N10 /netbsd: ppb2: link is x1 @ 2.5GT/s
Mar 12 19:05:02 CF-N10 /netbsd: ppb3: PCI Express capability version 2 <Root Port of PCI-E Root Complex> x1 @ 5.0GT/s
Mar 12 19:05:02 CF-N10 /netbsd: ppb3: link is x1 @ 2.5GT/s
Mar 12 19:05:02 CF-N10 /netbsd: ppb4: PCI Express capability version 2 <Root Port of PCI-E Root Complex> x1 @ 5.0GT/s
Mar 12 19:05:02 CF-N10 /netbsd: ppb4: link is x1 @ 2.5GT/s
Mar 12 19:05:02 CF-N10 /netbsd: ahcisata0 port 0: device present, speed: 3.0Gb/s
Mar 12 19:05:02 CF-N10 /netbsd: drm: Enabling RC6 states: RC6 on, RC6p off, RC6pp off
Mar 12 19:05:02 CF-N10 /netbsd: ahcisata0 port 1: PHY offline
Mar 12 19:05:02 CF-N10 /netbsd: ahcisata0 port 0: device present, speed: 3.0Gb/s
Mar 12 19:05:02 CF-N10 /netbsd: cbb0: interrupting at ioapic0 pin 19
Mar 12 19:05:02 CF-N10 /netbsd: fatal protection fault in supervisor mode
Mar 12 19:05:02 CF-N10 /netbsd: trap type 4 code 0 rip ffffffff802824ba cs 8 rflags 10046 cr2 ffff800047ea40be ilevel 8 rsp fffffe8040b3aec8
Mar 12 19:05:02 CF-N10 /netbsd: curlwp 0xfffffe811c2ddb60 pid 343.1 lowest kstack 0xfffffe8040b382c0
Mar 12 19:05:02 CF-N10 /netbsd: fatal protection fault in supervisor mode
Mar 12 19:05:02 CF-N10 /netbsd: panic: trap
Mar 12 19:05:02 CF-N10 /netbsd: cpu2: Begin traceback...
Mar 12 19:05:02 CF-N10 /netbsd: trap type 4 code 0 rip ffffffff802824ba cs 8 rflags 10046 cr2 7f7ff7b05020 ilevel 8 rsp fffffe8040b1fec8
Mar 12 19:05:02 CF-N10 /netbsd: curlwp 0xfffffe81083686e0 pid 543.1 lowest kstack 0xfffffe8040b1d2c0
Mar 12 19:05:02 CF-N10 /netbsd: vpanic() at netbsd:vpanic+0x13c
Mar 12 19:05:02 CF-N10 /netbsd: snprintf() at netbsd:snprintf
Mar 12 19:05:02 CF-N10 /netbsd: startlwp() at netbsd:startlwp
Mar 12 19:05:02 CF-N10 /netbsd: alltraps() at netbsd:alltraps+0x96
Mar 12 19:05:02 CF-N10 /netbsd: cpu2: End traceback...
Mar 12 19:05:02 CF-N10 /netbsd: 
Mar 12 19:05:02 CF-N10 /netbsd: dumping to dev 0,1 (offset=3064, size=1019705):
Mar 12 19:05:02 CF-N10 /netbsd: dump
CF-N10@root 10:37:57/170325(/var/crash)% crash -M netbsd.16.core -N netbsd.16
Crash version 7.1_RC2, image version 7.1_RC1.
WARNING: versions differ, you may not be able to examine this image.
System panicked: trap
Backtrace from time of crash is available.
crash> bt
_KERNEL_OPT_NARCNET() at 0
_KERNEL_OPT_ACPI_SCANPCI() at _KERNEL_OPT_ACPI_SCANPCI+0x7
vpanic() at vpanic+0x145
snprintf() at snprintf
startlwp() at startlwp
calltrap() at calltrap+0x11
crash> 
crash> ps
PID LID S CPU     FLAGS       STRUCT LWP *               NAME WAIT
661      1 2   0   8020000   fffffe811905c020             sysctl
588      1 3   0   8020080   fffffe8116cae880                 sh wait
171      1 3   0   8020080   fffffe81085a4b40                 sh pipe_rd
137      1 3   0   8020080   fffffe811a01c340                 sh pipe_rd
42       1 3   0   8020080   fffffe8108368b00                 sh wait
543  >   1 7   3   8020000   fffffe81083686e0                top
542      1 8   0   8020000   fffffe81083ac2e0                 sh
525      1 3   0   8020080   fffffe811a009360              getty ttyraw
537      1 3   0   8020080   fffffe811a009780              getty ttyraw
516      1 3   0   8020080   fffffe81085a4300              getty ttyraw
515      1 3   0   8020080   fffffe8108019280              login wait
509      1 2   0   8020000   fffffe8119375000               cron
476      1 3   0   8020080   fffffe8119375420              inetd kqueue
399      1 2   0   8020000   fffffe811c2dd740           sendmail
343  >   1 7   2         0   fffffe811c2ddb60           sendmail
391      1 3   0   8020080   fffffe811a01c760               sshd select
358      1 3   0   8020080   fffffe811a009ba0             powerd wait
334      1 2   3   8020000   fffffe811c2dd320           ifwatchd
186      1 3   1   8020000   fffffe81085a4720            syslogd uvn_fp2
1        1 3   0   8020080   fffffe8107eab660               init wait
0       72 3   0       200   fffffe8107efe680            physiod physiod
0       71 3   0       200   fffffe81080196a0           aiodoned aiodoned
0       70 3   3       200   fffffe8108019ac0            ioflush tstile
0       69 3   0       200   fffffe8107efe260           pgdaemon pgdaemon
0       65 3   0       200   fffffe8107da81c0               usb1 usbevt
0       64 3   0       200   fffffe8107efeaa0               usb0 usbevt
0       63 3   0       200   fffffe8107e8f1e0          coretemp1 coretemp1
0       62 3   0       200   fffffe8107e70a40          coretemp0 coretemp0
0       61 3   0       200   fffffe8107e70620            acpitz1 acpitz1
0       60 3   0       200   fffffe8107e70200            acpitz0 acpitz0
0       59 3   0       200   fffffe8107e8f600           acpibat0 acpibat0
0       58 3   0       200   fffffe8107eab240          cryptoret crypto_w
0       57 3   0       200   fffffe8107eaba80              unpgc unpgc
0       56 2   1       200   fffffe8107e79a60        vmem_rehash
0       55 3   0       200   fffffe8107e79220             sdmmc1 mmctaskq
0       54 3   0       200   fffffe8107e79640             sdmmc0 mmctaskq
0       45 3   2       200   fffffe8107da85e0               iic0 iicintr
0       44 3   0       200   fffffe8107da8a00            atabus1 atath
0       43 3   0       200   fffffe8107b9e1a0            atabus0 atath
0       42 3   0       200   fffffe8107b9e5c0          cardslot0 cardslotev
0       41 3   0       200   fffffe8107b9e9e0         usbtask-dr usbtsk
0       40 3   0       200   fffffe81073dc180         usbtask-hc usbtsk
0       39 3   0       200   fffffe81073dc5a0            intelfb intelfb
0       38 3   0       200   fffffe81073dc9c0               i915 i915
0       37 3   0       200   fffffe8107200160           lnxsyswq lnxsyswq
0       36 3   0       200   fffffe8107200580               pms0 pmsreset
0       35 3   0       200   fffffe81072009a0    acpiec sci thre ecsci
0       34 3   3       200   fffffe810713f140            xcall/3 xcall
0       33 1   3       200   fffffe810713f560          softser/3
0       32 1   3       200   fffffe810713f980          softclk/3
0       31 1   3       200   fffffe8107130120          softbio/3
0       30 1   3       200   fffffe8107130540          softnet/3
0       29 1   3       201   fffffe8107130960             idle/3
0       28 3   2       200   fffffe8107143100            xcall/2 xcall
0       27 1   2       200   fffffe8107143520          softser/2
0       26 1   2       200   fffffe8107143940          softclk/2
0       25 1   2       200   fffffe81071320e0          softbio/2
0       24 1   2       200   fffffe8107132500          softnet/2
0       23 1   2       201   fffffe8107132920             idle/2
0       22 3   1       200   fffffe81071230c0            xcall/1 xcall
0       21 1   1       200   fffffe81071234e0          softser/1
0       20 1   1       200   fffffe8107123900          softclk/1
0       19 1   1       200   fffffe810711c0a0          softbio/1
0       18 1   1       200   fffffe810711c4c0          softnet/1
0       17 1   1       201   fffffe810711c8e0             idle/1
0       16 2   1       200   fffffe811d30b080             sysmon
0       15 3   0       200   fffffe811d30b4a0         pmfsuspend pmfsuspend
0       14 3   0       200   fffffe811d30b8c0           pmfevent pmfevent
0       13 3   0       200   fffffe811db27060         sopendfree sopendfr
0       12 3   0       200   fffffe811db27480           nfssilly nfssilly
0       11 3   3       200   fffffe811db278a0            cachegc cachegc
0       10 3   3       200   fffffe811e12a040              vrele vrele
0        9 2   1       200   fffffe811e12a460             vdrain
0        8 3   0       200   fffffe811e12a880          modunload mod_unld
0        7 3   0       200   fffffe811e136020            xcall/0 xcall
0        6 1   0       200   fffffe811e136440          softser/0
0        5 1   0       200   fffffe811e136860          softclk/0
0        4 1   0       200   fffffe811e13f000          softbio/0
0        3 1   0       200   fffffe811e13f420          softnet/0
0        2 1   0       201   fffffe811e13f840             idle/0
0    >   1 7   1       200   ffffffff80fe5460            swapper
crash> 



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