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Date:      Mon, 16 Mar 2015 16:40:56 +0300
From:      Michael BlackHeart <amdmiek@gmail.com>
To:        freebsd-stable <freebsd-stable@freebsd.org>
Subject:   savecore problem
Message-ID:  <CA%2BAz77No%2B0k=S4xq5MPK-YEgm7HGh%2B%2BSBNRHeV0hHq7AqOc0Tw@mail.gmail.com>

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Hello there. I've got a problem. Recently my personal server issued a
kernel panic. Then there's a dump and so on. But there's no dump
information after reboot. I do not know what was really the panic cause but
assume that savecore failed because of RAID.

Problem - minidump was done (I saw it was) but was not recovered by
savecore after reboot into /var/vrash

Filesystem is UFS

FreeBSD diablo.miekoff.local 10.1-STABLE FreeBSD 10.1-STABLE #0 r277169:
Thu Jan 15 10:22:34 MSK 2015
amd_miek@diablo.miekoff.local:/usr/obj/usr/src/sys/DIABLO64
 amd64

rc.conf configuration

dumpdev="AUTO"
dumpdir="/var/crash/"



RAID 1 via graid configuration (JMicron based)

graid list
Geom name: JMicron-6e1c79e
State: OPTIMAL
Metadata: JMicron
Providers:
1. Name: raid/r0
   Mediasize: 120024203264 (112G)
   Sectorsize: 512
   Mode: r6w6e16
   Subdisks: ada0 (ACTIVE), ada1 (ACTIVE)
   Dirty: No
   State: OPTIMAL
   Strip: 1024
   Components: 2
   Transformation: RAID1
   RAIDLevel: RAID1
   Label: SYSMIRROR
   descr: JMicron RAID1 volume
Consumers:
1. Name: ada0
   Mediasize: 120034123776 (112G)
   Sectorsize: 512
   Mode: r1w1e1
   ReadErrors: 0
   Subdisks: r0(SYSMIRROR):0@0
   State: ACTIVE (ACTIVE)
2. Name: ada1
   Mediasize: 120034123776 (112G)
   Sectorsize: 512
   Mode: r1w1e1
   ReadErrors: 0
   Subdisks: r0(SYSMIRROR):1@0
   State: ACTIVE (ACTIVE)

/etc/fstab

# Device                Mountpoint      FStype  Options
    Dump    Pass#
/dev/ufs/rootfs         /               ufs     rw,noatime
     1       1
/dev/raid/r0p3          none            swap    sw
     0       0
/dev/ufs/varfs          /var            ufs     rw,noatime
     2       2
/dev/ufs/tmpfs          /tmp            ufs     rw,noatime
     2       2
/dev/ufs/usrfs          /usr            ufs     rw,noatime
     2       2
/dev/ufs/configfs       /config         ufs     rw,noatime
     2       2
tmpfs                   /usr/tmpfs      tmpfs   rw
     0       0
proc                    /proc           procfs  rw
     0       0
fdesc                   /dev/fd         fdescfs rw
     0       0

In kernel configuration DEBUG -g is disabled.

-- 
amd_miek
Think different.
Just superior.



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