Error Message

Panic stack shows as below.

1. try to call volsioctl_real() and panic

vxio(unloaded text):0x7c07a764(genunix:cdev_ioctl?)()
vxdmp:dmp_signal_vold+0x1ac()
vxdmp:dmp_throttle_paths+0x440()
vxdmp:dmp_process_stats+0x240(0x0)
vxdmp:dmp_daemons_loop+0x164(0x0, 0x0)
unix:thread_start+0x4()

2. try to call volsopen_real() and panic

vxdmp:dmp_dev_open+0x134(, 0x1, 0x4, 0xc40033803dc8, 0x0)
vxdmp:dmp_signal_vold+0x6c()
vxdmp:dmp_throttle_paths+0x440()
vxdmp:dmp_process_stats+0x240(0x0)
vxdmp:dmp_daemons_loop+0x164(0x0, 0x0)
unix:thread_start+0x4()

Applies To

 - VxVM 6.0.3.200 and 6.0.5 and 6.1 that includes Etrack 3358407 fix.
    (Etrack 3358407 issue was occurred on VxVM 6.0.1 and 6.0.3)

 - VxVM 6.2 that includes Etrack 3736633 fix.

Dmp i/o statistic function (dmp_daemons_loop()) calls vxio function even though the vxio driver has been unloaded by vxvm-shutdown script. Etrack 3358407 fix "vxdmpadm iostat stop" remains incomplete for this issue.

Workaround

-comment out modunload process in /lib/svc/method/vxvm-shutdown

Details of changes:

bash-2.05$ diff ORIGINAL_vxvm-shutdown  Fixed_vxvm-shutdown

104,110c104,110

< for v in vxspec vxio vxdmp

< do

<       mid=`/usr/sbin/modinfo|/usr/bin/grep -w "$v"|/usr/bin/awk '{print $1}'`

<       [ -n "$mid" ] && {

<               /usr/sbin/modunload -i $mid >/dev/null 2>&1 || break

<       }

< done &

---

> #for v in vxspec vxio vxdmp

> #do

> #     mid=`/usr/sbin/modinfo|/usr/bin/grep -w "$v"|/usr/bin/awk '{print $1}'`

> #     [ -n "$mid" ] && {

> #             /usr/sbin/modunload -i $mid >/dev/null 2>&1 || break

> #     }

> #done &

- 6.0.5.300 fixed this issue.

 vm-sol11_sparc-Patch-6.0.5.300 (for solaris 11)

vm-sol10_sparc-Patch-6.0.5.300 (for solaris 10)

- 6.1.000.100 fixed this issue.

vm-sol11_sparc-6.1.0.100   (for solaris11)

vm-sol10_sparc-6.1.0.100   (for solaris10)

- 6.2 approached in different way to address this issue, but panic re-occured and reported in e3847745.
 
 For Solaris 11, 6.2.1.200 is published.
 vm-sol11_sparc-Patch-6.2.1.200

For Solaris 10, private hotfix was created, if you need this hotfix, please contact Veritas Technical Support.