>From: Youzhong Yang [mailto:[email protected]]
>Sent: 星期三, 一月 27, 2016 11:41
>To: Fred Liu
>Cc: Richard Elling; [email protected]; illumos-developer
>Subject: Re: [developer] [smartos-discuss] Is zfs dead man timer tunable?
> -d
> Disregard dump header valid flag. Force savecore to
> attempt to save a crash dump even if the header
> information stored on the dump device indicates the dump
> has already been saved.
It works well this time. Thank you, Youzhong!
[root@pluto ~]# savecore -vd /zones/debug
savecore: System dump time: Mon Jan 25 19:24:52 2016
savecore: Saving compressed system crash dump in /zones/debug/vmdump.0
savecore: Copying /dev/zvol/dsk/zones/dump to /zones/debug/vmdump.0
savecore: Decompress the crash dump with
'savecore -vf /zones/debug/vmdump.0'
0:05 dump copy is done
[root@pluto ~]# cd /zones/debug
[root@pluto /zones/debug]# ls
bounds METRICS.csv vmdump.0
[root@pluto /zones/debug]# ls -la
total 4818248
drwxr-xr-x 2 root root 5 Jan 27 13:17 .
drwxr-xr-x 16 root root 19 Jan 25 19:21 ..
-rw-r--r-- 1 root root 2 Jan 27 13:17 bounds
-rw-r--r-- 1 root root 1058 Jan 27 13:17 METRICS.csv
-rw-r--r-- 1 root root 4305518592 Jan 27 13:17 vmdump.0
[root@pluto /zones/debug]# du -sh *
9K bounds
9K METRICS.csv
2.3G vmdump.0
[root@pluto /zones/debug]# savecore -d -vf vmdump.0 .
savecore: System dump time: Mon Jan 25 19:24:52 2016
savecore: saving system crash dump in ./{unix,vmcore}.0
Constructing namelist ./unix.0
Constructing corefile ./vmcore.0
1:11 100% done: 6186530 of 6186530 pages saved
86613 (1%) zero pages were not written
1:11 dump decompress is done
[root@pluto /zones/debug]# ls -la
total 15270811
drwxr-xr-x 2 root root 7 Jan 27 13:20 .
drwxr-xr-x 16 root root 19 Jan 25 19:21 ..
-rw-r--r-- 1 root root 2 Jan 27 13:17 bounds
-rw-r--r-- 1 root root 1233 Jan 27 13:21 METRICS.csv
-rw-r--r-- 1 root root 2086628 Jan 27 13:20 unix.0
-rw-r--r-- 1 root root 25727160320 Jan 27 13:21 vmcore.0
-rw-r--r-- 1 root root 4305518592 Jan 27 13:17 vmdump.0
[root@pluto /zones/debug]# du -sh *
9K bounds
9K METRICS.csv
1.1M unix.0
5.0G vmcore.0
2.3G vmdump.0
[root@pluto /zones/debug]# mdb -k unix.0 vmcore.0
mdb: failed to read panicbuf and panic_reg -- current register set will be
unavailable
Loading modules: [ unix genunix specfs dtrace mac cpu.generic uppc apix
scsi_vhci ufs ip hook neti sockfs arp usba stmf_sbd stmf zfs mm sd lofs idm
sata crypto random cpc logindmux ptm kvm sppp nsmb smbsrv nfs ipc ]
> ::zio_state
ADDRESS TYPE STAGE WAITER TIME_ELAPSED
fffff0857784d8e8 NULL OPEN - -
fffff0857791f1a8 NULL OPEN - -
Thanks.
Fred
Thanks.
Fred
-------------------------------------------
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