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zlogin to solaris container causes segmentation fault and core dump

1. whenever I login to a zone either thru ssh or zlogin I get a segmentation fault
2. running sparc solaris 10 10/09 version with recommended patches dated 2010.03.07
3. machine is T6300 blade

here is my zone config export

# zonecfg -z zone1 export
create -b
set zonepath=/zones/zone1
set autoboot=false
set ip-type=shared
add inherit-pkg-dir
set dir=/lib
end
add inherit-pkg-dir
set dir=/platform
end
add inherit-pkg-dir
set dir=/sbin
end
add inherit-pkg-dir
set dir=/usr
end
add net
set address=10.20.11.105
set physical=e1000g0
set defrouter=10.20.11.254
end

any idea what is causing this?

edwinbmiller

ASKER

just found out the direct cause of the segmentation fault was the login trying to run the quota command from the /etc/profile

case "$0" in
-sh | -ksh | -jsh | -bash)

if [ ! -f .hushlogin ]
then
/usr/sbin/quota

if I run the quota command within the container it will segment fault

turning on .hushlogin in the home directory keeps quota from running and no error occur during login

-----------------------------------

running as root gives same error, running quota from host os works fine.

truss of running quota from a zone

munmap(0xFF090000, 32768) = 0
brk(0x000249C8) = 0
brk(0x000269C8) = 0
open("/dev/zfs", O_RDWR) = 3
open("/etc/mnttab", O_RDONLY) = 4
open("/etc/dfs/sharetab", O_RDONLY) = 5
open("/etc/mnttab", O_RDONLY) = 6
ioctl(6, MNTIOC_GETMNTENT, 0xFFBFF6D4) = 0
Incurred fault #6, FLTBOUNDS %pc = 0xFF131D40
siginfo: SIGSEGV SEGV_MAPERR addr=0x00000000
Received signal #11, SIGSEGV [default]
siginfo: SIGSEGV SEGV_MAPERR addr=0x00000000

Brian Utterback

Do you get a core file produced? If so, please run pstack on the core and post the results. Can you login okay if you comment out the quota call?

edwinbmiller

ASKER

# pstack core
core 'core' of 27618: quota
ff131d40 strcmp (7, 0, 0, 0, 246b8, 0) + 160
000113e8 main (1, ffbffc24, ffbffc2c, 24000, 0, 12c00) + 11c
000111a0 _start (0, 0, 0, 0, 0, 0) + 108
#
if i comment out the quota I login fine.

edwinbmiller

ASKER

if i truss quota within the container

unmap(0xFEC38000, 65536) = 0
memcntl(0xFEC20000, 25572, MC_ADVISE, MADV_WILLNEED, 0, 0) = 0
close(3) = 0
stat64("/lib/libxml2.so.2", 0xFFBFE950) Err#2 ENOENT
munmap(0xFF090000, 32768) = 0
brk(0x000249C8) = 0
brk(0x000269C8) = 0
open("/dev/zfs", O_RDWR) = 3
open("/etc/mnttab", O_RDONLY) = 4
open("/etc/dfs/sharetab", O_RDONLY) = 5
open("/etc/mnttab", O_RDONLY) = 6
ioctl(6, MNTIOC_GETMNTENT, 0xFFBFF714) = 0
Incurred fault #6, FLTBOUNDS %pc = 0xFF131D40
siginfo: SIGSEGV SEGV_MAPERR addr=0x00000000
Received signal #11, SIGSEGV [default]
siginfo: SIGSEGV SEGV_MAPERR addr=0x00000000
#
looks like it's having problems with /etc/mnttab

ASKER CERTIFIED SOLUTION

Brian Utterback

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