I repeated the Natty test with some extended debugging on another micro instance. The (annotated) output is below. As far as I understand it xen_set_pud() initiates a mmu_update multicall but by the time it gets flushed, there is still only one call present. This is a MMU_UPDATE hypervisor call. If I understand the description right, the lower two bits not set in ptr mean a normal PT update. The hypercall itself succeeds but the result is -EINVAL. There are many repetitions of this in the log. The ptr address seems to be the same in all cases, but val is always different.
[ 178.878707] [<c0104c57>] ? xen_mc_flush+0x137/0x230 [ 178.878710] [<c01068fd>] ? xen_set_pud_hyper+0x7d/0x80 [ 178.878712] [<c0106947>] ? xen_set_pud+0x47/0x60 [ 178.878715] [<c013a715>] ? pud_populate+0x45/0x90 [ 178.878717] [<c020af53>] ? __pmd_alloc+0x73/0x90 [ 178.878720] [<c020bbb4>] ? handle_mm_fault+0x174/0x190 [ 178.878722] [<c0639b40>] ? do_page_fault+0x0/0x490 [ 178.878725] [<c0639c9e>] ? do_page_fault+0x15e/0x490 [ 178.878728] [<c0210133>] ? sys_mmap_pgoff+0x73/0x1d0 [ 178.878731] [<c021050b>] ? sys_munmap+0x4b/0x60 [ 178.878733] [<c0639b40>] ? do_page_fault+0x0/0x490 [ 178.878736] [<c0636eaf>] ? error_code+0x67/0x6c [ 178.878739] call 1/1: op=1 result=-22 (-EINVAL) xen_extend_mmu_update+0x4a/0x70 [ 178.878740] arg[0] = e620d960 (address of argument array) [ 178.878742] arg[1] = 1 (one pair of arguments) [ 178.878743] arg[2] = 0 [ 178.878744] arg[3] = 7ff0 (DOMID_SELF) ptr = 0x00000001 58b59008 val= 0x00000001 4c01f001 -- 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 “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: New 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 _______________________________________________ Mailing list: https://launchpad.net/~openjdk Post to : [email protected] Unsubscribe : https://launchpad.net/~openjdk More help : https://help.launchpad.net/ListHelp
