Hi Xerxes I've attached more information to the main description of the bug which should cover kernel version.
I'm using an OMAP4 Pandaboard - not sure how I check hardware revision TBH. I've not got a chroot environment setup for ARM so can't test the natty kernel stuff (yet). With reference to jenkins this was a fresh install with no configuration - so it was not actually doing anything other than general jenkins background stuff like checking for updates etc.. ** Description changed: I'm using an up-to-date oneiric ARM server image running jenkins - after a short period of time (< 1 hour) the server locks up - hard reboot and I can see these messages in the syslog: Sep 8 21:50:51 winehouse kernel: [ 7920.496795] INFO: task java:20973 blocked for more than 120 seconds. Sep 8 21:50:51 winehouse kernel: [ 7920.496795] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Sep 8 21:50:51 winehouse kernel: [ 7920.497009] java D c05ca9e0 0 20973 561 0x00000000 Sep 8 21:50:51 winehouse kernel: [ 7920.497222] [<c05ca9e0>] (schedule+0x540/0x618) from [<c05cc728>] (__down_read+0xc0/0xd8) Sep 8 21:50:51 winehouse kernel: [ 7920.497222] [<c05cc728>] (__down_read+0xc0/0xd8) from [<c05cf5e8>] (do_page_fault.part.2+0x80/0x1e0) Sep 8 21:50:51 winehouse kernel: [ 7920.497222] [<c05cf5e8>] (do_page_fault.part.2+0x80/0x1e0) from [<c05cf7e4>] (do_page_fault+0x9c/0xac) Sep 8 21:50:51 winehouse kernel: [ 7920.497222] [<c05cf7e4>] (do_page_fault+0x9c/0xac) from [<c004c410>] (do_DataAbort+0x34/0x98) Sep 8 21:50:51 winehouse kernel: [ 7920.497406] [<c004c410>] (do_DataAbort+0x34/0x98) from [<c05cd210>] (__dabt_svc+0x70/0xa0) Sep 8 21:50:51 winehouse kernel: [ 7920.497436] Exception stack(0xec91dec0 to 0xec91df08) Sep 8 21:50:51 winehouse kernel: [ 7920.497467] dec0: 56e0f000 56e12000 00000020 0000001f ef248040 56e110c0 56e0f44c ef248000 Sep 8 21:50:51 winehouse kernel: [ 7920.497467] dee0: 00000000 ec91c000 00000000 56b4446c 56e11000 ec91df08 c00553d4 c005d198 Sep 8 21:50:51 winehouse kernel: [ 7920.497497] df00: 800f0013 ffffffff Sep 8 21:50:51 winehouse kernel: [ 7920.497497] [<c05cd210>] (__dabt_svc+0x70/0xa0) from [<c005d198>] (v7_coherent_kern_range+0x1c/0x7c) Sep 8 21:50:51 winehouse kernel: [ 7920.497497] [<c005d198>] (v7_coherent_kern_range+0x1c/0x7c) from [<c00553d4>] (arm_syscall+0x140/0x294) Sep 8 21:50:51 winehouse kernel: [ 7920.497497] [<c00553d4>] (arm_syscall+0x140/0x294) from [<c0051220>] (ret_fast_syscall+0x0/0x30) + + ProblemType: Bug + Architecture: armel + Date: Fri Sep 9 08:51:09 2011 + Dependencies: + ca-certificates 20110502+nmu1 + ca-certificates-java 20110531 + coreutils 8.5-1ubuntu6 + debconf 1.5.40ubuntu1 + dpkg 1.16.0.3ubuntu3 + gcc-4.6-base 4.6.1-9ubuntu2 + icedtea-6-jre-jamvm 6b23~pre8-1ubuntu1 + java-common 0.42ubuntu1 + libacl1 2.2.51-3 + libattr1 1:2.4.46-3 + libavahi-client3 0.6.30-4ubuntu1 + libavahi-common-data 0.6.30-4ubuntu1 + libavahi-common3 0.6.30-4ubuntu1 + libbz2-1.0 1.0.5-6ubuntu1 + libc-bin 2.13-17ubuntu2 + libc6 2.13-17ubuntu2 + libcomerr2 1.41.14-1ubuntu3 + libcups2 1.5.0-5 + libdbus-1-3 1.4.14-1ubuntu1 + libfreetype6 2.4.4-2ubuntu1 + libgcc1 1:4.6.1-9ubuntu2 + libgcrypt11 1.5.0-1 + libgnutls26 2.10.5-1ubuntu3 + libgpg-error0 1.10-0.3ubuntu1 + libgssapi-krb5-2 1.9.1+dfsg-1ubuntu1 + libjpeg62 6b1-1ubuntu2 + libk5crypto3 1.9.1+dfsg-1ubuntu1 + libkeyutils1 1.4-6 + libkrb5-3 1.9.1+dfsg-1ubuntu1 + libkrb5support0 1.9.1+dfsg-1ubuntu1 + liblcms1 1.19.dfsg-1ubuntu1 + liblzma2 5.0.0-2 + libnspr4 4.8.7-0ubuntu3 + libnss3 3.12.9+ckbi-1.82-0ubuntu4 + libnss3-1d 3.12.9+ckbi-1.82-0ubuntu4 + libselinux1 2.0.98-1.1 + libsqlite3-0 3.7.7-2ubuntu1 + libssl1.0.0 1.0.0d-2ubuntu2 + libstdc++6 4.6.1-9ubuntu2 + libtasn1-3 2.9-4 + multiarch-support 2.13-17ubuntu2 + openjdk-6-jre-headless 6b23~pre8-1ubuntu1 + openjdk-6-jre-lib 6b23~pre8-1ubuntu1 + openssl 1.0.0d-2ubuntu2 + perl-base 5.12.4-4 + tzdata 2011g-0ubuntu0.11.04 + tzdata-java 2011g-0ubuntu0.11.04 + xz-utils 5.0.0-2 + zlib1g 1:1.2.3.4.dfsg-3ubuntu3 + DistroRelease: Ubuntu 11.10 + Package: openjdk-6-jre-headless 6b23~pre8-1ubuntu1 + PackageArchitecture: armel + ProcEnviron: + LANGUAGE=en_GB: + LANG=en_GB.UTF-8 + SHELL=/bin/bash + ProcVersionSignature: Ubuntu 3.0.0-1204.9-omap4 3.0.3 + SourcePackage: openjdk-6 + Tags: oneiric + Uname: Linux 3.0.0-1204-omap4 armv7l + UpgradeStatus: No upgrade log present (probably fresh install) ** Tags added: oneiric ** Description changed: I'm using an up-to-date oneiric ARM server image running jenkins - after a short period of time (< 1 hour) the server locks up - hard reboot and I can see these messages in the syslog: Sep 8 21:50:51 winehouse kernel: [ 7920.496795] INFO: task java:20973 blocked for more than 120 seconds. Sep 8 21:50:51 winehouse kernel: [ 7920.496795] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Sep 8 21:50:51 winehouse kernel: [ 7920.497009] java D c05ca9e0 0 20973 561 0x00000000 Sep 8 21:50:51 winehouse kernel: [ 7920.497222] [<c05ca9e0>] (schedule+0x540/0x618) from [<c05cc728>] (__down_read+0xc0/0xd8) Sep 8 21:50:51 winehouse kernel: [ 7920.497222] [<c05cc728>] (__down_read+0xc0/0xd8) from [<c05cf5e8>] (do_page_fault.part.2+0x80/0x1e0) Sep 8 21:50:51 winehouse kernel: [ 7920.497222] [<c05cf5e8>] (do_page_fault.part.2+0x80/0x1e0) from [<c05cf7e4>] (do_page_fault+0x9c/0xac) Sep 8 21:50:51 winehouse kernel: [ 7920.497222] [<c05cf7e4>] (do_page_fault+0x9c/0xac) from [<c004c410>] (do_DataAbort+0x34/0x98) Sep 8 21:50:51 winehouse kernel: [ 7920.497406] [<c004c410>] (do_DataAbort+0x34/0x98) from [<c05cd210>] (__dabt_svc+0x70/0xa0) Sep 8 21:50:51 winehouse kernel: [ 7920.497436] Exception stack(0xec91dec0 to 0xec91df08) Sep 8 21:50:51 winehouse kernel: [ 7920.497467] dec0: 56e0f000 56e12000 00000020 0000001f ef248040 56e110c0 56e0f44c ef248000 Sep 8 21:50:51 winehouse kernel: [ 7920.497467] dee0: 00000000 ec91c000 00000000 56b4446c 56e11000 ec91df08 c00553d4 c005d198 Sep 8 21:50:51 winehouse kernel: [ 7920.497497] df00: 800f0013 ffffffff Sep 8 21:50:51 winehouse kernel: [ 7920.497497] [<c05cd210>] (__dabt_svc+0x70/0xa0) from [<c005d198>] (v7_coherent_kern_range+0x1c/0x7c) Sep 8 21:50:51 winehouse kernel: [ 7920.497497] [<c005d198>] (v7_coherent_kern_range+0x1c/0x7c) from [<c00553d4>] (arm_syscall+0x140/0x294) Sep 8 21:50:51 winehouse kernel: [ 7920.497497] [<c00553d4>] (arm_syscall+0x140/0x294) from [<c0051220>] (ret_fast_syscall+0x0/0x30) - ProblemType: Bug Architecture: armel Date: Fri Sep 9 08:51:09 2011 Dependencies: - ca-certificates 20110502+nmu1 - ca-certificates-java 20110531 - coreutils 8.5-1ubuntu6 - debconf 1.5.40ubuntu1 - dpkg 1.16.0.3ubuntu3 - gcc-4.6-base 4.6.1-9ubuntu2 - icedtea-6-jre-jamvm 6b23~pre8-1ubuntu1 - java-common 0.42ubuntu1 - libacl1 2.2.51-3 - libattr1 1:2.4.46-3 - libavahi-client3 0.6.30-4ubuntu1 - libavahi-common-data 0.6.30-4ubuntu1 - libavahi-common3 0.6.30-4ubuntu1 - libbz2-1.0 1.0.5-6ubuntu1 - libc-bin 2.13-17ubuntu2 - libc6 2.13-17ubuntu2 - libcomerr2 1.41.14-1ubuntu3 - libcups2 1.5.0-5 - libdbus-1-3 1.4.14-1ubuntu1 - libfreetype6 2.4.4-2ubuntu1 - libgcc1 1:4.6.1-9ubuntu2 - libgcrypt11 1.5.0-1 - libgnutls26 2.10.5-1ubuntu3 - libgpg-error0 1.10-0.3ubuntu1 - libgssapi-krb5-2 1.9.1+dfsg-1ubuntu1 - libjpeg62 6b1-1ubuntu2 - libk5crypto3 1.9.1+dfsg-1ubuntu1 - libkeyutils1 1.4-6 - libkrb5-3 1.9.1+dfsg-1ubuntu1 - libkrb5support0 1.9.1+dfsg-1ubuntu1 - liblcms1 1.19.dfsg-1ubuntu1 - liblzma2 5.0.0-2 - libnspr4 4.8.7-0ubuntu3 - libnss3 3.12.9+ckbi-1.82-0ubuntu4 - libnss3-1d 3.12.9+ckbi-1.82-0ubuntu4 - libselinux1 2.0.98-1.1 - libsqlite3-0 3.7.7-2ubuntu1 - libssl1.0.0 1.0.0d-2ubuntu2 - libstdc++6 4.6.1-9ubuntu2 - libtasn1-3 2.9-4 - multiarch-support 2.13-17ubuntu2 - openjdk-6-jre-headless 6b23~pre8-1ubuntu1 - openjdk-6-jre-lib 6b23~pre8-1ubuntu1 - openssl 1.0.0d-2ubuntu2 - perl-base 5.12.4-4 - tzdata 2011g-0ubuntu0.11.04 - tzdata-java 2011g-0ubuntu0.11.04 - xz-utils 5.0.0-2 - zlib1g 1:1.2.3.4.dfsg-3ubuntu3 + ca-certificates 20110502+nmu1 + ca-certificates-java 20110531 + coreutils 8.5-1ubuntu6 + debconf 1.5.40ubuntu1 + dpkg 1.16.0.3ubuntu3 + gcc-4.6-base 4.6.1-9ubuntu2 + icedtea-6-jre-jamvm 6b23~pre8-1ubuntu1 + java-common 0.42ubuntu1 + libacl1 2.2.51-3 + libattr1 1:2.4.46-3 + libavahi-client3 0.6.30-4ubuntu1 + libavahi-common-data 0.6.30-4ubuntu1 + libavahi-common3 0.6.30-4ubuntu1 + libbz2-1.0 1.0.5-6ubuntu1 + libc-bin 2.13-17ubuntu2 + libc6 2.13-17ubuntu2 + libcomerr2 1.41.14-1ubuntu3 + libcups2 1.5.0-5 + libdbus-1-3 1.4.14-1ubuntu1 + libfreetype6 2.4.4-2ubuntu1 + libgcc1 1:4.6.1-9ubuntu2 + libgcrypt11 1.5.0-1 + libgnutls26 2.10.5-1ubuntu3 + libgpg-error0 1.10-0.3ubuntu1 + libgssapi-krb5-2 1.9.1+dfsg-1ubuntu1 + libjpeg62 6b1-1ubuntu2 + libk5crypto3 1.9.1+dfsg-1ubuntu1 + libkeyutils1 1.4-6 + libkrb5-3 1.9.1+dfsg-1ubuntu1 + libkrb5support0 1.9.1+dfsg-1ubuntu1 + liblcms1 1.19.dfsg-1ubuntu1 + liblzma2 5.0.0-2 + libnspr4 4.8.7-0ubuntu3 + libnss3 3.12.9+ckbi-1.82-0ubuntu4 + libnss3-1d 3.12.9+ckbi-1.82-0ubuntu4 + libselinux1 2.0.98-1.1 + libsqlite3-0 3.7.7-2ubuntu1 + libssl1.0.0 1.0.0d-2ubuntu2 + libstdc++6 4.6.1-9ubuntu2 + libtasn1-3 2.9-4 + multiarch-support 2.13-17ubuntu2 + openjdk-6-jre-headless 6b23~pre8-1ubuntu1 + openjdk-6-jre-lib 6b23~pre8-1ubuntu1 + openssl 1.0.0d-2ubuntu2 + perl-base 5.12.4-4 + tzdata 2011g-0ubuntu0.11.04 + tzdata-java 2011g-0ubuntu0.11.04 + xz-utils 5.0.0-2 + zlib1g 1:1.2.3.4.dfsg-3ubuntu3 DistroRelease: Ubuntu 11.10 Package: openjdk-6-jre-headless 6b23~pre8-1ubuntu1 PackageArchitecture: armel ProcEnviron: - LANGUAGE=en_GB: - LANG=en_GB.UTF-8 - SHELL=/bin/bash + LANGUAGE=en_GB: + LANG=en_GB.UTF-8 + SHELL=/bin/bash ProcVersionSignature: Ubuntu 3.0.0-1204.9-omap4 3.0.3 SourcePackage: openjdk-6 - Tags: oneiric Uname: Linux 3.0.0-1204-omap4 armv7l UpgradeStatus: No upgrade log present (probably fresh install) -- 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/845158 Title: Frequent java task hang on ARM server Status in “openjdk-6” package in Ubuntu: New Bug description: I'm using an up-to-date oneiric ARM server image running jenkins - after a short period of time (< 1 hour) the server locks up - hard reboot and I can see these messages in the syslog: Sep 8 21:50:51 winehouse kernel: [ 7920.496795] INFO: task java:20973 blocked for more than 120 seconds. Sep 8 21:50:51 winehouse kernel: [ 7920.496795] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Sep 8 21:50:51 winehouse kernel: [ 7920.497009] java D c05ca9e0 0 20973 561 0x00000000 Sep 8 21:50:51 winehouse kernel: [ 7920.497222] [<c05ca9e0>] (schedule+0x540/0x618) from [<c05cc728>] (__down_read+0xc0/0xd8) Sep 8 21:50:51 winehouse kernel: [ 7920.497222] [<c05cc728>] (__down_read+0xc0/0xd8) from [<c05cf5e8>] (do_page_fault.part.2+0x80/0x1e0) Sep 8 21:50:51 winehouse kernel: [ 7920.497222] [<c05cf5e8>] (do_page_fault.part.2+0x80/0x1e0) from [<c05cf7e4>] (do_page_fault+0x9c/0xac) Sep 8 21:50:51 winehouse kernel: [ 7920.497222] [<c05cf7e4>] (do_page_fault+0x9c/0xac) from [<c004c410>] (do_DataAbort+0x34/0x98) Sep 8 21:50:51 winehouse kernel: [ 7920.497406] [<c004c410>] (do_DataAbort+0x34/0x98) from [<c05cd210>] (__dabt_svc+0x70/0xa0) Sep 8 21:50:51 winehouse kernel: [ 7920.497436] Exception stack(0xec91dec0 to 0xec91df08) Sep 8 21:50:51 winehouse kernel: [ 7920.497467] dec0: 56e0f000 56e12000 00000020 0000001f ef248040 56e110c0 56e0f44c ef248000 Sep 8 21:50:51 winehouse kernel: [ 7920.497467] dee0: 00000000 ec91c000 00000000 56b4446c 56e11000 ec91df08 c00553d4 c005d198 Sep 8 21:50:51 winehouse kernel: [ 7920.497497] df00: 800f0013 ffffffff Sep 8 21:50:51 winehouse kernel: [ 7920.497497] [<c05cd210>] (__dabt_svc+0x70/0xa0) from [<c005d198>] (v7_coherent_kern_range+0x1c/0x7c) Sep 8 21:50:51 winehouse kernel: [ 7920.497497] [<c005d198>] (v7_coherent_kern_range+0x1c/0x7c) from [<c00553d4>] (arm_syscall+0x140/0x294) Sep 8 21:50:51 winehouse kernel: [ 7920.497497] [<c00553d4>] (arm_syscall+0x140/0x294) from [<c0051220>] (ret_fast_syscall+0x0/0x30) Architecture: armel Date: Fri Sep 9 08:51:09 2011 Dependencies: ca-certificates 20110502+nmu1 ca-certificates-java 20110531 coreutils 8.5-1ubuntu6 debconf 1.5.40ubuntu1 dpkg 1.16.0.3ubuntu3 gcc-4.6-base 4.6.1-9ubuntu2 icedtea-6-jre-jamvm 6b23~pre8-1ubuntu1 java-common 0.42ubuntu1 libacl1 2.2.51-3 libattr1 1:2.4.46-3 libavahi-client3 0.6.30-4ubuntu1 libavahi-common-data 0.6.30-4ubuntu1 libavahi-common3 0.6.30-4ubuntu1 libbz2-1.0 1.0.5-6ubuntu1 libc-bin 2.13-17ubuntu2 libc6 2.13-17ubuntu2 libcomerr2 1.41.14-1ubuntu3 libcups2 1.5.0-5 libdbus-1-3 1.4.14-1ubuntu1 libfreetype6 2.4.4-2ubuntu1 libgcc1 1:4.6.1-9ubuntu2 libgcrypt11 1.5.0-1 libgnutls26 2.10.5-1ubuntu3 libgpg-error0 1.10-0.3ubuntu1 libgssapi-krb5-2 1.9.1+dfsg-1ubuntu1 libjpeg62 6b1-1ubuntu2 libk5crypto3 1.9.1+dfsg-1ubuntu1 libkeyutils1 1.4-6 libkrb5-3 1.9.1+dfsg-1ubuntu1 libkrb5support0 1.9.1+dfsg-1ubuntu1 liblcms1 1.19.dfsg-1ubuntu1 liblzma2 5.0.0-2 libnspr4 4.8.7-0ubuntu3 libnss3 3.12.9+ckbi-1.82-0ubuntu4 libnss3-1d 3.12.9+ckbi-1.82-0ubuntu4 libselinux1 2.0.98-1.1 libsqlite3-0 3.7.7-2ubuntu1 libssl1.0.0 1.0.0d-2ubuntu2 libstdc++6 4.6.1-9ubuntu2 libtasn1-3 2.9-4 multiarch-support 2.13-17ubuntu2 openjdk-6-jre-headless 6b23~pre8-1ubuntu1 openjdk-6-jre-lib 6b23~pre8-1ubuntu1 openssl 1.0.0d-2ubuntu2 perl-base 5.12.4-4 tzdata 2011g-0ubuntu0.11.04 tzdata-java 2011g-0ubuntu0.11.04 xz-utils 5.0.0-2 zlib1g 1:1.2.3.4.dfsg-3ubuntu3 DistroRelease: Ubuntu 11.10 Package: openjdk-6-jre-headless 6b23~pre8-1ubuntu1 PackageArchitecture: armel ProcEnviron: LANGUAGE=en_GB: LANG=en_GB.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 3.0.0-1204.9-omap4 3.0.3 SourcePackage: openjdk-6 Uname: Linux 3.0.0-1204-omap4 armv7l UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openjdk-6/+bug/845158/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~openjdk Post to : [email protected] Unsubscribe : https://launchpad.net/~openjdk More help : https://help.launchpad.net/ListHelp

