Public bug reported:
9.3.189.114 (root/.pasroot) (Host Machine)
Run the follwoing command to go to the guest victim machine from
(/var/lib/libvirt/images/jagan/new_ubuntu_alpha1)
qemu-system-ppc64 -enable-kvm -M pseries -cpu POWER8 -smp 1 -m 10G
-nographic -nodefaults -monitor stdio -serial pty -append
"root=/dev/sda" -kernel trusty-server-cloudimg-ppc64el-vmlinuz-generic
-device spapr-vscsi -device spapr-vlan,netdev=net0,mac=6c:ae:8b:69:16:15
-netdev bridge,br=virbr0,id=net0 -drive file=trusty-server-cloudimg-
ppc64el.img.qcow2
after this command you will get the screen number.
example:
QEMU 1.6.0 monitor - type 'help' for more information
(qemu) char device redirected to /dev/pts/16 (label serial0)
Then open another host session and execute the below command
# screen /dev/pts/16
(qemu)
Here the screen number is /dev/pts/16
-->>Then you will get a blank screen so press ENTER key.
The guest machine login: ubuntu/passw0rd
Then do --->sudo -i
Environment:
===========
Host: Power8
Guest : ubuntu hosted on Power8
The issue:
======
sigaltstack system call unable send proper return value.
How to run :
========
-->cd /root/ltp-full-20130904/testcases/kernel/syscalls/sigaltstack
--> ./sigaltstack02 ==> Getting the below error
sigaltstack02 1 TPASS : stgaltstack() fails, Invalid Flag value, errno:22
sigaltstack02 2 TFAIL : sigaltstack() returned 0, expected -1, errno:12
=====>> FAIL
<<<test_start>>>
tag=sigaltstack02 stime=1386653793
cmdline="sigaltstack02"
contacts=""
analysis=exit
<<<test_output>>>
sigaltstack02 1 TPASS : stgaltstack() fails, Invalid Flag value, errno:22
sigaltstack02 2 TFAIL : sigaltstack() returned 0, expected -1, errno:12
<<<execution_status>>>
initiation_status="ok"
duration=0 termination_type=exited termination_id=1 corefile=no
cutime=0 cstime=0
<<<test_end>>>
sigaltstack() should fail and set errno to ENOMEM when the size of alternate
stack area is less than MINSIGSTKSZ.
But here its sigaltstack() is returning 0.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Incomplete
** Tags: ppc64el
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https://bugs.launchpad.net/bugs/1267062
Title:
sigaltstack system call unable to send proper return code (error12)
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