Hello, Verified this problem with 3.13.0-14-generic OS on a KVM guest running on Power 8 and the issue is no more reproducible
I tried the mentioned scenarios like - apt-get install perl* - dio test run from LTP Both scenarios were successfull with out any problem or error message in dmesg More details: root@ubuntu:~# dmesg | tail [ 12.026629] type=1400 audit(1393859454.002:8): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/sbin/dhclient" pid=744 comm="apparmor_parser" [ 12.026640] type=1400 audit(1393859454.002:9): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=744 comm="apparmor_parser" [ 12.026647] type=1400 audit(1393859454.002:10): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/connman/scripts/dhclient-script" pid=744 comm="apparmor_parser" [ 12.027157] type=1400 audit(1393859454.002:11): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=744 comm="apparmor_parser" [ 12.583881] init: plymouth-stop pre-start process (848) terminated with status 1 [ 13.361227] e1000: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX [ 13.362023] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 94.161888] random: nonblocking pool is initialized [ 575.930046] audit_printk_skb: 9 callbacks suppressed [ 575.930054] type=1006 audit(1393863692.439:15): pid=9047 uid=0 old auid=4294967295 new auid=1000 old ses=4294967295 new ses=1 res=1 root@ubuntu:~# cat diolog Test Start Time: Mon Mar 3 22:05:30 2014 ----------------------------------------- Testcase Result Exit Value -------- ------ ---------- dio01 PASS 0 dio02 PASS 0 dio03 PASS 0 dio04 PASS 0 dio05 PASS 0 dio06 PASS 0 dio07 PASS 0 dio08 PASS 0 dio09 PASS 0 dio10 PASS 0 dio11 PASS 0 dio12 PASS 0 dio13 PASS 0 dio14 PASS 0 dio15 PASS 0 dio16 PASS 0 dio17 PASS 0 dio18 PASS 0 dio19 PASS 0 dio20 PASS 0 dio21 PASS 0 dio22 PASS 0 dio23 PASS 0 dio24 PASS 0 dio25 PASS 0 dio26 PASS 0 dio27 PASS 0 dio28 PASS 0 ----------------------------------------------- Total Tests: 28 Total Failures: 0 Kernel Version: 3.13.0-14-generic Machine Architecture: ppc64le Hostname: ubuntu Test Start Time: Mon Mar 3 22:26:35 2014 ----------------------------------------- Testcase Result Exit Value -------- ------ ---------- Filecaps PASS 0 ----------------------------------------------- Total Tests: 1 Total Failures: 0 Kernel Version: 3.13.0-14-generic Machine Architecture: ppc64le Hostname: ubuntu root@ubuntu:/opt/ltp/results# cat logfsx Test Start Time: Mon Mar 3 22:26:59 2014 ----------------------------------------- Testcase Result Exit Value -------- ------ ---------- fsx-linux PASS 0 ----------------------------------------------- Total Tests: 1 Total Failures: 0 Kernel Version: 3.13.0-14-generic Machine Architecture: ppc64le Hostname: ubuntu We can close this bug for now, if the issue is seen in future than we can reopen or raise a separate bug. Thanks -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1266737 Title: error sda: WRITE SAME failed when installing package Status in “linux” package in Ubuntu: Confirmed Bug description: Description: ========== Was installing perl packages using apt-get install command. I saw WRITE SAME failed displayed during the process. Command used : apt-get install perl* on my Ubuntu guest to install all perl packages. I saw the message as below . . . . Setting up perlindex (1.606-1) ... Generating index (this may take a while)...sda: WRITE SAME failed. Manually zeroing. done. it took few seconds to complete and later on the process continued. Environment: ============ Host: Power8 Guest : ubuntu hosted on Power8 used below qemu command : [root@localhost ubuntu_alpha1]# cat kvmg.p8.h KERNEL=trusty-server-cloudimg-ppc64el-vmlinuz-generic #FSIMAGE=trusty-server-cloudimg-ppc64el.img FSIMAGE=trusty-server-cloudimg-ppc64el.img.qcow2 MEM=8G qemu-system-ppc64 \ -enable-kvm -M pseries -cpu POWER8 -smp cores=4,threads=1 -m $MEM \ -net nic -net user \ -device spapr-vscsi -drive file=$FSIMAGE \ -kernel $KERNEL \ -append "earlyprintk root=/dev/sda console=hvc0 --no-sessions" \ -nographic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1266737/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp