Re: [OpenIndiana-discuss] get no system dumps: skipping system dump - no dump device configured

[Carsten Grzemba]

On 11.08.17 12:31, "Udo Grabowski (IMK)"   wrote: 
> 
> On 11/08/2017 12:03, Carsten Grzemba wrote:
> >I try to investigate boot hangs with latest hipster. Unfortunately "send 
> >break" is not possible on X4200 and dump after NMI is not working, however 
> >dumpadm shows:
> >
> >$ sudo dumpadm
> >Password:
> > Dump content: all pages
> > Dump device: /dev/zvol/dsk/rpool/dump (dedicated)
> >Savecore directory: /var/crash/gnom
> > Savecore enabled: yes
> > Save compressed: on
> >
> >and:
> >$ zfs list rpool/dump
> >NAME USED AVAIL REFER MOUNTPOINT
> >rpool/dump 8.00G 310G 8.00G -
> >
> >
> >Any ideas why system after NMI means dump devices is not configured
> >
> 
> You need to set this in /etc/system and reboot:
> 
> * disable multithread dump (hangs)
> set dump_plat_mincpu=0
> set dump_bzip2_level=1
> * enable panic on NMI
> set pcplusmp:apic_panic_on_nmi=1
> 
Could it be, that system dump works only if the dump driver is already loaded?
perhaps it is possible to forceload the dump driver
 
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Re: [OpenIndiana-discuss] get no system dumps: skipping system dump - no dump device configured

[Carsten Grzemba]

On 11.08.17 12:31, "Udo Grabowski (IMK)"   wrote: 
> 
> On 11/08/2017 12:03, Carsten Grzemba wrote:
> >I try to investigate boot hangs with latest hipster. Unfortunately "send 
> >break" is not possible on X4200 and dump after NMI is not working, however 
> >dumpadm shows:
> >
> >$ sudo dumpadm
> >Password:
> > Dump content: all pages
> > Dump device: /dev/zvol/dsk/rpool/dump (dedicated)
> >Savecore directory: /var/crash/gnom
> > Savecore enabled: yes
> > Save compressed: on
> >
> >and:
> >$ zfs list rpool/dump
> >NAME USED AVAIL REFER MOUNTPOINT
> >rpool/dump 8.00G 310G 8.00G -
> >
> >
> >Any ideas why system after NMI means dump devices is not configured
> >
> 
> You need to set this in /etc/system and reboot:
> 
> * disable multithread dump (hangs)
> set dump_plat_mincpu=0
> set dump_bzip2_level=1
> * enable panic on NMI
> set pcplusmp:apic_panic_on_nmi=1
> 
This I have already set so; no change.
  
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Re: [OpenIndiana-discuss] get no system dumps: skipping system dump - no dump device configured

[Udo Grabowski (IMK)]

On 11/08/2017 12:03, Carsten Grzemba wrote:

I try to investigate boot hangs with latest hipster. Unfortunately "send break" 
is not possible on X4200 and dump after NMI is not working, however dumpadm shows:

$ sudo dumpadm
Password:
 Dump content: all pages
 Dump device: /dev/zvol/dsk/rpool/dump (dedicated)
Savecore directory: /var/crash/gnom
 Savecore enabled: yes
 Save compressed: on

and:
$ zfs list rpool/dump
NAME USED AVAIL REFER MOUNTPOINT
rpool/dump 8.00G 310G 8.00G -


Any ideas why system after NMI means dump devices is not configured



You need to set this in /etc/system and reboot:

* disable multithread dump (hangs)
set dump_plat_mincpu=0
set dump_bzip2_level=1
* enable panic on NMI
set pcplusmp:apic_panic_on_nmi=1

--
Dr.Udo Grabowski   Inst.f.Meteorology & Climate Research IMK-ASF-SAT
http://www.imk-asf.kit.edu/english/sat.php
KIT - Karlsruhe Institute of Technology   http://www.kit.edu
Postfach 3640,76021 Karlsruhe,Germany T:(+49)721 608-26026 F:-926026

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