We have investigated the problem and can confirm that the bug lies in the underlying EC2 hypervisor; this bug cannot be fixed at the AMI level. The problem only affects launches on 32-bit t1.micro instances.
Canonical has been in contact with and remains in contact with Amazon regarding a final resolution of this issue. As more information becomes available, Canonical will share it with the community. We recommend that users who need Java on 32-bit t1.micros launch a m1.small, install Java and then change the instance type to a t1.micro. This can be done by doing stopping the instance and modifying the instance type using either the AWS console or using the command line tools. Users who have existing 32-bit t1.micros and need Java use the same method to change their instance(s) to m1.smalls, install Java and then switch back to t1.micro. However, we have had some reports that the work around may not work for some users of 32-bit t1.micros. Users who use the work-around to install Java may hit the hyper-visor bug running Java in production. Users who hit the bug after employing the work around, should consider using a m1.small. We are not aware of a specific time-line to permanently resolve the underlying hypervisor issue at this time. Users that need more specific information about this issue should contact Amazon Web Services directly. -- You received this bug notification because you are a member of OpenJDK, which is subscribed to openjdk-6 in Ubuntu. https://bugs.launchpad.net/bugs/634487 Title: t1.micro instance hangs when installing java Status in Release Notes for Ubuntu: Fix Released Status in “linux” package in Ubuntu: Confirmed Status in “linux-ec2” package in Ubuntu: Invalid Status in “openjdk-6” package in Ubuntu: Invalid Status in “sun-java6” package in Ubuntu: Invalid Status in “linux” source package in Lucid: Invalid Status in “linux-ec2” source package in Lucid: Confirmed Status in “openjdk-6” source package in Lucid: Invalid Status in “sun-java6” source package in Lucid: Invalid Status in “linux” source package in Maverick: Confirmed Status in “linux-ec2” source package in Maverick: Invalid Status in “openjdk-6” source package in Maverick: Invalid Status in “sun-java6” source package in Maverick: Invalid Status in “linux” source package in Natty: Confirmed Status in “linux-ec2” source package in Natty: Invalid Status in “openjdk-6” source package in Natty: Invalid Status in “sun-java6” source package in Natty: Invalid Bug description: Binary package hint: cloud-init I booted the 32bit EBS lucid AMI (ami-1234de7b) for a t1.micro instance. I attempted to install Sun Java. The instance hung during the install. Repros every time. Only repros on t1.micro instances. I tried adding swap in case it was an out-of-memory condition, and it still repro'd. No reboots or anything else like that were involved so it's not the same issue as #634102 Console log snippet (full one attached): [ 525.195499] ------------[ cut here ]------------ [ 525.195515] kernel BUG at /build/buildd/linux-ec2-2.6.32/arch/x86/mm/hypervisor.c:461! [ 525.195522] invalid opcode: 0000 [#1] SMP [ 525.195527] last sysfs file: /sys/kernel/uevent_seqnum [ 525.195531] Modules linked in: ipv6 [ 525.195537] [ 525.195541] Pid: 8663, comm: java Not tainted (2.6.32-308-ec2 #15-Ubuntu) [ 525.195545] EIP: 0061:[<c0118550>] EFLAGS: 00010282 CPU: 0 [ 525.195553] EIP is at T.566+0x150/0x180 [ 525.195557] EAX: ffffffea EBX: c1f17e70 ECX: 00000002 EDX: 00000000 [ 525.195561] ESI: 0d537000 EDI: 00000004 EBP: c1f17ebc ESP: c1f17e60 [ 525.195565] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0069 [ 525.195580] Process java (pid: 8663, ti=c1f16000 task=e5373200 task.ti=c1f16000) [ 525.195588] Stack: [ 525.195591] c103a020 c1f17ee0 80000000 00000061 0000000e 00000000 c1c81000 0d537061 [ 525.195603] <0> 80000004 00000000 00000000 00000040 00000001 ffffffea c1f17ee0 00000001 [ 525.195617] <0> 00000000 00007ff0 00000000 00000000 0d537001 00000004 c14e5000 c1f17efc [ 525.195632] Call Trace: [ 525.195640] [<c01188dd>] ? xen_l3_entry_update+0x12d/0x1b0 [ 525.195647] [<c01145de>] ? pud_populate+0x9e/0xc0 [ 525.195654] [<c01aed59>] ? __pmd_alloc+0x99/0xa0 [ 525.195659] [<c01b2eb9>] ? handle_mm_fault+0x509/0x5b0 [ 525.195665] [<c01b7b2a>] ? do_munmap+0x22a/0x2b0 [ 525.195672] [<c05370f9>] ? do_page_fault+0x119/0x340 [ 525.195677] [<c0536fe0>] ? do_page_fault+0x0/0x340 [ 525.195683] [<c0535525>] ? error_code+0x3d/0x44 [ 525.195687] Code: c3 64 a0 cc 40 6f c0 84 c0 75 28 8b 5d a8 b9 01 00 00 00 31 d2 be f0 7f 00 00 e8 dc 8a fe ff 85 c0 79 d6 0f 0b eb fe 8d 74 26 00 <0f> 0b eb fe 0f 0b eb fe 8b 45 a8 31 c9 ba 01 00 00 00 c7 04 24 [ 525.195754] EIP: [<c0118550>] T.566+0x150/0x180 SS:ESP 0069:c1f17e60 [ 525.195769] ---[ end trace 9706b235d81a7968 ]--- Script which can 100% repro the problem: #!/bin/bash export DEBIAN_FRONTEND=noninteractive add-apt-repository "deb http://archive.canonical.com/ lucid partner" apt-get update echo 'sun-java6-bin shared/accepted-sun-dlj-v1-1 boolean true sun-java6-jdk shared/accepted-sun-dlj-v1-1 boolean true sun-java6-jre shared/accepted-sun-dlj-v1-1 boolean true sun-java6-jre sun-java6-jre/stopthread boolean true sun-java6-jre sun-java6-jre/jcepolicy note sun-java6-bin shared/present-sun-dlj-v1-1 note sun-java6-jdk shared/present-sun-dlj-v1-1 note sun-java6-jre shared/present-sun-dlj-v1-1 note '|debconf-set-selections apt-get -y install sun-java6-jdk To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-release-notes/+bug/634487/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~openjdk Post to : [email protected] Unsubscribe : https://launchpad.net/~openjdk More help : https://help.launchpad.net/ListHelp
