[Kernel-packages] [Bug 1461078] Re: kdump service fails to start on Power8
This bug was fixed in the package kexec-tools - 1:2.0.6-0ubuntu2.2 --- kexec-tools (1:2.0.6-0ubuntu2.2) trusty; urgency=medium * Fixes kexec load failure on Power8 (LP: #1461078) -- Louis Bouchard louis.bouch...@ubuntu.com Fri, 10 Jul 2015 11:42:41 -0500 ** Changed in: kexec-tools (Ubuntu Trusty) Status: Fix Committed = Fix Released -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to kexec-tools in Ubuntu. https://bugs.launchpad.net/bugs/1461078 Title: kdump service fails to start on Power8 Status in kexec-tools package in Ubuntu: Fix Released Status in kexec-tools source package in Trusty: Fix Released Bug description: [SRU justification] Needed to avoid load failure on Power8 [Impact] Without this fix, kexec will not load on Power8 [Fix] Apply upstream fix present in Dev release [Test Case] 1) sudo apt-get install linux-crashdump 2) reboot server 3) kdump-config load As outlined in the initial description, kdump will fail to load without the fix. [Regression] None expected, fix is already present in the development version (Wily) [Original description of the problem] == Comment: #0 - SACHIN P. SANT ss...@in.ibm.com - 2015-06-01 06:39:56 == ---Problem Description--- kdump service fails to start Contact Information = Sachin Sant / ss...@in.ibm.com ---uname output--- 3.19.0-18-generic Machine Type = POWER8 ---Debugger--- A debugger is not configured ---Steps to Reproduce--- 1) Using latest daily ISO install 14.04.02 as a Power VM guest 2) Upgrade the kernel to 3.19 level (3.19.0-18-generic) 3) Configure kdump kdump-config load command fails with following error: root@alp9:~# cat /proc/cmdline BOOT_IMAGE=/boot/vmlinux-3.19.0-18-generic root=UUID=3ea23bcf-7269-432f-bacc-f82c6cdd774e ro splash crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M vt.handoff=7 root@alp9:~# kdump-config show USE_KDUMP:1 KDUMP_SYSCTL: kernel.panic_on_oops=1 KDUMP_COREDIR:/var/crash crashkernel addr: current state:Not ready to kdump kexec command: no kexec command recorded root@alp9:~# kdump-config load unrecoverable error: short read from/proc/device-tree//ibm,drc-names * failed to load kdump kernel root@alp9:~# Userspace tool common name: kexec-tools The userspace tool has the following bit modes: 64-bit Userspace rpm: kdump-tools(1.5.5-2ubuntu1.2) Userspace tool obtained from project website: na *Additional Instructions for Sachin Sant / ss...@in.ibm.com: -Post a private note with access information to the machine that the bug is occuring on. -Attach ltrace and strace of userspace application. == Comment: #2 - MAMATHA INAMDAR mainam...@in.ibm.com - 2015-06-02 02:23:51 == root@alp9:~# /etc/init.d/kdump-tools start Starting kdump-tools: unrecoverable error: short read from/proc/device-tree//ibm,drc-names * failed to load kdump kernel root@alp9:~# dpkg -l | grep kexec ii kexec-tools 1:2.0.6-0ubuntu2.1 ppc64el tools to support fast kexec reboots root@alp9:~# dpkg -l | grep kdump ii kdump-tools 1.5.5-2ubuntu1.2 all scripts and tools for automating kdump (Linux crash dumps) root@alp9:~# cat /sys/kernel/kexec_crash_loaded 0 root@alp9:~# kdump-config status current state : Not ready to kdump root@alp9:~# dmesg | grep -i crash [0.00] Reserving 2048MB of memory at 128MB for crashkernel (System RAM: 102400MB) [0.00] Kernel command line: BOOT_IMAGE=/boot/vmlinux-3.19.0-18-generic root=UUID=3ea23bcf-7269-432f-bacc-f82c6cdd774e ro splash crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M vt.handoff=7 root@alp9:~# == Comment: #3 - Hari Krishna Bathini hbath...@in.ibm.com - 2015-06-02 07:29:23 == The following upstream commit fixes this issue: --- commit d1932cd592e2a6aaf50ed22cfa2d7562b583854a Author: Anton Blanchard an...@samba.org Date: Tue Dec 2 10:59:40 2014 +1100 kexec/fs2dt: Use slurp_file_len to avoid partial read of files The OPAL firmware is going to embed its symbol map in the device tree. The size is large enough to be more than a page, and it takes multiple reads to get the whole file. This is because sysfs uses the seq_file helpers which do a page at a time. Unfortunately fs2dt has no handling for short reads and we die with: unrecoverable error: short read from/proc/device- tree//ibm,opal/firmware/symbol-map This patch uses the slurp_file_len helper which does the right thing. It moves the explicit open of the file further down for add_usable_mem_property and add_dyn_reconf_usable_mem_property. We should convert both of these to use the buffer provided by slurp_file_len at some stage.
[Kernel-packages] [Bug 1461078] Re: kdump service fails to start on Power8
** Tags removed: targetmilestone-inin--- verification-needed ** Tags added: targetmilestone-inin14043 verification-done -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to kexec-tools in Ubuntu. https://bugs.launchpad.net/bugs/1461078 Title: kdump service fails to start on Power8 Status in kexec-tools package in Ubuntu: Fix Released Status in kexec-tools source package in Trusty: Fix Committed Bug description: [SRU justification] Needed to avoid load failure on Power8 [Impact] Without this fix, kexec will not load on Power8 [Fix] Apply upstream fix present in Dev release [Test Case] 1) sudo apt-get install linux-crashdump 2) reboot server 3) kdump-config load As outlined in the initial description, kdump will fail to load without the fix. [Regression] None expected, fix is already present in the development version (Wily) [Original description of the problem] == Comment: #0 - SACHIN P. SANT ss...@in.ibm.com - 2015-06-01 06:39:56 == ---Problem Description--- kdump service fails to start Contact Information = Sachin Sant / ss...@in.ibm.com ---uname output--- 3.19.0-18-generic Machine Type = POWER8 ---Debugger--- A debugger is not configured ---Steps to Reproduce--- 1) Using latest daily ISO install 14.04.02 as a Power VM guest 2) Upgrade the kernel to 3.19 level (3.19.0-18-generic) 3) Configure kdump kdump-config load command fails with following error: root@alp9:~# cat /proc/cmdline BOOT_IMAGE=/boot/vmlinux-3.19.0-18-generic root=UUID=3ea23bcf-7269-432f-bacc-f82c6cdd774e ro splash crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M vt.handoff=7 root@alp9:~# kdump-config show USE_KDUMP:1 KDUMP_SYSCTL: kernel.panic_on_oops=1 KDUMP_COREDIR:/var/crash crashkernel addr: current state:Not ready to kdump kexec command: no kexec command recorded root@alp9:~# kdump-config load unrecoverable error: short read from/proc/device-tree//ibm,drc-names * failed to load kdump kernel root@alp9:~# Userspace tool common name: kexec-tools The userspace tool has the following bit modes: 64-bit Userspace rpm: kdump-tools(1.5.5-2ubuntu1.2) Userspace tool obtained from project website: na *Additional Instructions for Sachin Sant / ss...@in.ibm.com: -Post a private note with access information to the machine that the bug is occuring on. -Attach ltrace and strace of userspace application. == Comment: #2 - MAMATHA INAMDAR mainam...@in.ibm.com - 2015-06-02 02:23:51 == root@alp9:~# /etc/init.d/kdump-tools start Starting kdump-tools: unrecoverable error: short read from/proc/device-tree//ibm,drc-names * failed to load kdump kernel root@alp9:~# dpkg -l | grep kexec ii kexec-tools 1:2.0.6-0ubuntu2.1 ppc64el tools to support fast kexec reboots root@alp9:~# dpkg -l | grep kdump ii kdump-tools 1.5.5-2ubuntu1.2 all scripts and tools for automating kdump (Linux crash dumps) root@alp9:~# cat /sys/kernel/kexec_crash_loaded 0 root@alp9:~# kdump-config status current state : Not ready to kdump root@alp9:~# dmesg | grep -i crash [0.00] Reserving 2048MB of memory at 128MB for crashkernel (System RAM: 102400MB) [0.00] Kernel command line: BOOT_IMAGE=/boot/vmlinux-3.19.0-18-generic root=UUID=3ea23bcf-7269-432f-bacc-f82c6cdd774e ro splash crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M vt.handoff=7 root@alp9:~# == Comment: #3 - Hari Krishna Bathini hbath...@in.ibm.com - 2015-06-02 07:29:23 == The following upstream commit fixes this issue: --- commit d1932cd592e2a6aaf50ed22cfa2d7562b583854a Author: Anton Blanchard an...@samba.org Date: Tue Dec 2 10:59:40 2014 +1100 kexec/fs2dt: Use slurp_file_len to avoid partial read of files The OPAL firmware is going to embed its symbol map in the device tree. The size is large enough to be more than a page, and it takes multiple reads to get the whole file. This is because sysfs uses the seq_file helpers which do a page at a time. Unfortunately fs2dt has no handling for short reads and we die with: unrecoverable error: short read from/proc/device- tree//ibm,opal/firmware/symbol-map This patch uses the slurp_file_len helper which does the right thing. It moves the explicit open of the file further down for add_usable_mem_property and add_dyn_reconf_usable_mem_property. We should convert both of these to use the buffer provided by slurp_file_len at some stage. Signed-off-by: Anton Blanchard an...@samba.org Signed-off-by: Simon Horman ho...@verge.net.au --- This patch applies cleanly on the kexec-tools version 1:2.0.6-0ubuntu2.1 on Ubuntu 14.04.2. Thanks Hari To manage
[Kernel-packages] [Bug 1461078] Re: kdump service fails to start on Power8
** Branch linked: lp:ubuntu/trusty-proposed/kexec-tools -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to kexec-tools in Ubuntu. https://bugs.launchpad.net/bugs/1461078 Title: kdump service fails to start on Power8 Status in kexec-tools package in Ubuntu: Fix Released Status in kexec-tools source package in Trusty: Fix Committed Bug description: [SRU justification] Needed to avoid load failure on Power8 [Impact] Without this fix, kexec will not load on Power8 [Fix] Apply upstream fix present in Dev release [Test Case] 1) sudo apt-get install linux-crashdump 2) reboot server 3) kdump-config load As outlined in the initial description, kdump will fail to load without the fix. [Regression] None expected, fix is already present in the development version (Wily) [Original description of the problem] == Comment: #0 - SACHIN P. SANT ss...@in.ibm.com - 2015-06-01 06:39:56 == ---Problem Description--- kdump service fails to start Contact Information = Sachin Sant / ss...@in.ibm.com ---uname output--- 3.19.0-18-generic Machine Type = POWER8 ---Debugger--- A debugger is not configured ---Steps to Reproduce--- 1) Using latest daily ISO install 14.04.02 as a Power VM guest 2) Upgrade the kernel to 3.19 level (3.19.0-18-generic) 3) Configure kdump kdump-config load command fails with following error: root@alp9:~# cat /proc/cmdline BOOT_IMAGE=/boot/vmlinux-3.19.0-18-generic root=UUID=3ea23bcf-7269-432f-bacc-f82c6cdd774e ro splash crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M vt.handoff=7 root@alp9:~# kdump-config show USE_KDUMP:1 KDUMP_SYSCTL: kernel.panic_on_oops=1 KDUMP_COREDIR:/var/crash crashkernel addr: current state:Not ready to kdump kexec command: no kexec command recorded root@alp9:~# kdump-config load unrecoverable error: short read from/proc/device-tree//ibm,drc-names * failed to load kdump kernel root@alp9:~# Userspace tool common name: kexec-tools The userspace tool has the following bit modes: 64-bit Userspace rpm: kdump-tools(1.5.5-2ubuntu1.2) Userspace tool obtained from project website: na *Additional Instructions for Sachin Sant / ss...@in.ibm.com: -Post a private note with access information to the machine that the bug is occuring on. -Attach ltrace and strace of userspace application. == Comment: #2 - MAMATHA INAMDAR mainam...@in.ibm.com - 2015-06-02 02:23:51 == root@alp9:~# /etc/init.d/kdump-tools start Starting kdump-tools: unrecoverable error: short read from/proc/device-tree//ibm,drc-names * failed to load kdump kernel root@alp9:~# dpkg -l | grep kexec ii kexec-tools 1:2.0.6-0ubuntu2.1 ppc64el tools to support fast kexec reboots root@alp9:~# dpkg -l | grep kdump ii kdump-tools 1.5.5-2ubuntu1.2 all scripts and tools for automating kdump (Linux crash dumps) root@alp9:~# cat /sys/kernel/kexec_crash_loaded 0 root@alp9:~# kdump-config status current state : Not ready to kdump root@alp9:~# dmesg | grep -i crash [0.00] Reserving 2048MB of memory at 128MB for crashkernel (System RAM: 102400MB) [0.00] Kernel command line: BOOT_IMAGE=/boot/vmlinux-3.19.0-18-generic root=UUID=3ea23bcf-7269-432f-bacc-f82c6cdd774e ro splash crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M vt.handoff=7 root@alp9:~# == Comment: #3 - Hari Krishna Bathini hbath...@in.ibm.com - 2015-06-02 07:29:23 == The following upstream commit fixes this issue: --- commit d1932cd592e2a6aaf50ed22cfa2d7562b583854a Author: Anton Blanchard an...@samba.org Date: Tue Dec 2 10:59:40 2014 +1100 kexec/fs2dt: Use slurp_file_len to avoid partial read of files The OPAL firmware is going to embed its symbol map in the device tree. The size is large enough to be more than a page, and it takes multiple reads to get the whole file. This is because sysfs uses the seq_file helpers which do a page at a time. Unfortunately fs2dt has no handling for short reads and we die with: unrecoverable error: short read from/proc/device- tree//ibm,opal/firmware/symbol-map This patch uses the slurp_file_len helper which does the right thing. It moves the explicit open of the file further down for add_usable_mem_property and add_dyn_reconf_usable_mem_property. We should convert both of these to use the buffer provided by slurp_file_len at some stage. Signed-off-by: Anton Blanchard an...@samba.org Signed-off-by: Simon Horman ho...@verge.net.au --- This patch applies cleanly on the kexec-tools version 1:2.0.6-0ubuntu2.1 on Ubuntu 14.04.2. Thanks Hari To manage notifications about this bug go to:
[Kernel-packages] [Bug 1461078] Re: kdump service fails to start on Power8
Hello bugproxy, or anyone else affected, Accepted kexec-tools into trusty-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/kexec- tools/1:2.0.6-0ubuntu2.2 in a few hours, and then in the -proposed repository. Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users. If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision. Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance! ** Changed in: kexec-tools (Ubuntu Trusty) Status: In Progress = Fix Committed ** Tags added: verification-needed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to kexec-tools in Ubuntu. https://bugs.launchpad.net/bugs/1461078 Title: kdump service fails to start on Power8 Status in kexec-tools package in Ubuntu: Fix Released Status in kexec-tools source package in Trusty: Fix Committed Bug description: [SRU justification] Needed to avoid load failure on Power8 [Impact] Without this fix, kexec will not load on Power8 [Fix] Apply upstream fix present in Dev release [Test Case] 1) sudo apt-get install linux-crashdump 2) reboot server 3) kdump-config load As outlined in the initial description, kdump will fail to load without the fix. [Regression] None expected, fix is already present in the development version (Wily) [Original description of the problem] == Comment: #0 - SACHIN P. SANT ss...@in.ibm.com - 2015-06-01 06:39:56 == ---Problem Description--- kdump service fails to start Contact Information = Sachin Sant / ss...@in.ibm.com ---uname output--- 3.19.0-18-generic Machine Type = POWER8 ---Debugger--- A debugger is not configured ---Steps to Reproduce--- 1) Using latest daily ISO install 14.04.02 as a Power VM guest 2) Upgrade the kernel to 3.19 level (3.19.0-18-generic) 3) Configure kdump kdump-config load command fails with following error: root@alp9:~# cat /proc/cmdline BOOT_IMAGE=/boot/vmlinux-3.19.0-18-generic root=UUID=3ea23bcf-7269-432f-bacc-f82c6cdd774e ro splash crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M vt.handoff=7 root@alp9:~# kdump-config show USE_KDUMP:1 KDUMP_SYSCTL: kernel.panic_on_oops=1 KDUMP_COREDIR:/var/crash crashkernel addr: current state:Not ready to kdump kexec command: no kexec command recorded root@alp9:~# kdump-config load unrecoverable error: short read from/proc/device-tree//ibm,drc-names * failed to load kdump kernel root@alp9:~# Userspace tool common name: kexec-tools The userspace tool has the following bit modes: 64-bit Userspace rpm: kdump-tools(1.5.5-2ubuntu1.2) Userspace tool obtained from project website: na *Additional Instructions for Sachin Sant / ss...@in.ibm.com: -Post a private note with access information to the machine that the bug is occuring on. -Attach ltrace and strace of userspace application. == Comment: #2 - MAMATHA INAMDAR mainam...@in.ibm.com - 2015-06-02 02:23:51 == root@alp9:~# /etc/init.d/kdump-tools start Starting kdump-tools: unrecoverable error: short read from/proc/device-tree//ibm,drc-names * failed to load kdump kernel root@alp9:~# dpkg -l | grep kexec ii kexec-tools 1:2.0.6-0ubuntu2.1 ppc64el tools to support fast kexec reboots root@alp9:~# dpkg -l | grep kdump ii kdump-tools 1.5.5-2ubuntu1.2 all scripts and tools for automating kdump (Linux crash dumps) root@alp9:~# cat /sys/kernel/kexec_crash_loaded 0 root@alp9:~# kdump-config status current state : Not ready to kdump root@alp9:~# dmesg | grep -i crash [0.00] Reserving 2048MB of memory at 128MB for crashkernel (System RAM: 102400MB) [0.00] Kernel command line: BOOT_IMAGE=/boot/vmlinux-3.19.0-18-generic root=UUID=3ea23bcf-7269-432f-bacc-f82c6cdd774e ro splash crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M vt.handoff=7 root@alp9:~# == Comment: #3 - Hari Krishna Bathini hbath...@in.ibm.com - 2015-06-02 07:29:23 == The following upstream commit fixes this issue: --- commit d1932cd592e2a6aaf50ed22cfa2d7562b583854a Author: Anton Blanchard an...@samba.org Date: Tue Dec 2 10:59:40 2014 +1100 kexec/fs2dt: Use slurp_file_len to avoid partial read
[Kernel-packages] [Bug 1461078] Re: kdump service fails to start on Power8
** Summary changed: - kdump service fails to start + kdump service fails to start on Power8 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to kexec-tools in Ubuntu. https://bugs.launchpad.net/bugs/1461078 Title: kdump service fails to start on Power8 Status in kexec-tools package in Ubuntu: Fix Released Status in kexec-tools source package in Trusty: In Progress Bug description: [SRU justification] Needed to avoid load failure on Power8 [Impact] Without this fix, kexec will not load on Power8 [Fix] Apply upstream fix present in Dev release [Test Case] 1) sudo apt-get install linux-crashdump 2) reboot server 3) kdump-config load As outlined in the initial description, kdump will fail to load without the fix. [Regression] None expected, fix is already present in the development version (Wily) [Original description of the problem] == Comment: #0 - SACHIN P. SANT ss...@in.ibm.com - 2015-06-01 06:39:56 == ---Problem Description--- kdump service fails to start Contact Information = Sachin Sant / ss...@in.ibm.com ---uname output--- 3.19.0-18-generic Machine Type = POWER8 ---Debugger--- A debugger is not configured ---Steps to Reproduce--- 1) Using latest daily ISO install 14.04.02 as a Power VM guest 2) Upgrade the kernel to 3.19 level (3.19.0-18-generic) 3) Configure kdump kdump-config load command fails with following error: root@alp9:~# cat /proc/cmdline BOOT_IMAGE=/boot/vmlinux-3.19.0-18-generic root=UUID=3ea23bcf-7269-432f-bacc-f82c6cdd774e ro splash crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M vt.handoff=7 root@alp9:~# kdump-config show USE_KDUMP:1 KDUMP_SYSCTL: kernel.panic_on_oops=1 KDUMP_COREDIR:/var/crash crashkernel addr: current state:Not ready to kdump kexec command: no kexec command recorded root@alp9:~# kdump-config load unrecoverable error: short read from/proc/device-tree//ibm,drc-names * failed to load kdump kernel root@alp9:~# Userspace tool common name: kexec-tools The userspace tool has the following bit modes: 64-bit Userspace rpm: kdump-tools(1.5.5-2ubuntu1.2) Userspace tool obtained from project website: na *Additional Instructions for Sachin Sant / ss...@in.ibm.com: -Post a private note with access information to the machine that the bug is occuring on. -Attach ltrace and strace of userspace application. == Comment: #2 - MAMATHA INAMDAR mainam...@in.ibm.com - 2015-06-02 02:23:51 == root@alp9:~# /etc/init.d/kdump-tools start Starting kdump-tools: unrecoverable error: short read from/proc/device-tree//ibm,drc-names * failed to load kdump kernel root@alp9:~# dpkg -l | grep kexec ii kexec-tools 1:2.0.6-0ubuntu2.1 ppc64el tools to support fast kexec reboots root@alp9:~# dpkg -l | grep kdump ii kdump-tools 1.5.5-2ubuntu1.2 all scripts and tools for automating kdump (Linux crash dumps) root@alp9:~# cat /sys/kernel/kexec_crash_loaded 0 root@alp9:~# kdump-config status current state : Not ready to kdump root@alp9:~# dmesg | grep -i crash [0.00] Reserving 2048MB of memory at 128MB for crashkernel (System RAM: 102400MB) [0.00] Kernel command line: BOOT_IMAGE=/boot/vmlinux-3.19.0-18-generic root=UUID=3ea23bcf-7269-432f-bacc-f82c6cdd774e ro splash crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M vt.handoff=7 root@alp9:~# == Comment: #3 - Hari Krishna Bathini hbath...@in.ibm.com - 2015-06-02 07:29:23 == The following upstream commit fixes this issue: --- commit d1932cd592e2a6aaf50ed22cfa2d7562b583854a Author: Anton Blanchard an...@samba.org Date: Tue Dec 2 10:59:40 2014 +1100 kexec/fs2dt: Use slurp_file_len to avoid partial read of files The OPAL firmware is going to embed its symbol map in the device tree. The size is large enough to be more than a page, and it takes multiple reads to get the whole file. This is because sysfs uses the seq_file helpers which do a page at a time. Unfortunately fs2dt has no handling for short reads and we die with: unrecoverable error: short read from/proc/device- tree//ibm,opal/firmware/symbol-map This patch uses the slurp_file_len helper which does the right thing. It moves the explicit open of the file further down for add_usable_mem_property and add_dyn_reconf_usable_mem_property. We should convert both of these to use the buffer provided by slurp_file_len at some stage. Signed-off-by: Anton Blanchard an...@samba.org Signed-off-by: Simon Horman ho...@verge.net.au --- This patch applies cleanly on the kexec-tools version 1:2.0.6-0ubuntu2.1 on Ubuntu 14.04.2. Thanks Hari To manage notifications about this bug go to:
[Kernel-packages] [Bug 1461078] Re: kdump service fails to start on Power8
** Description changed: + [SRU justification] + Needed to avoid load failure on Power8 + + [Impact] + Without this fix, kexec will not load on Power8 + + [Fix] + Apply upstream fix present in Dev release + + [Test Case] + 1) sudo apt-get install linux-crashdump + 2) reboot server + 3) kdump-config load + + As outlined in the initial description, kdump will fail to load without + the fix. + + [Regression] + None expected, fix is already present in the development version (Wily) + + [Original description of the problem] == Comment: #0 - SACHIN P. SANT ss...@in.ibm.com - 2015-06-01 06:39:56 == ---Problem Description--- kdump service fails to start - - Contact Information = Sachin Sant / ss...@in.ibm.com - + + Contact Information = Sachin Sant / ss...@in.ibm.com + ---uname output--- 3.19.0-18-generic - - Machine Type = POWER8 - + + Machine Type = POWER8 + ---Debugger--- A debugger is not configured - + ---Steps to Reproduce--- - 1) Using latest daily ISO install 14.04.02 as a Power VM guest + 1) Using latest daily ISO install 14.04.02 as a Power VM guest 2) Upgrade the kernel to 3.19 level (3.19.0-18-generic) 3) Configure kdump kdump-config load command fails with following error: - root@alp9:~# cat /proc/cmdline + root@alp9:~# cat /proc/cmdline BOOT_IMAGE=/boot/vmlinux-3.19.0-18-generic root=UUID=3ea23bcf-7269-432f-bacc-f82c6cdd774e ro splash crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M vt.handoff=7 root@alp9:~# kdump-config show USE_KDUMP:1 KDUMP_SYSCTL: kernel.panic_on_oops=1 KDUMP_COREDIR:/var/crash - crashkernel addr: + crashkernel addr: current state:Not ready to kdump kexec command: - no kexec command recorded + no kexec command recorded root@alp9:~# kdump-config load unrecoverable error: short read from/proc/device-tree//ibm,drc-names - * failed to load kdump kernel - root@alp9:~# + * failed to load kdump kernel + root@alp9:~# + Userspace tool common name: kexec-tools - - Userspace tool common name: kexec-tools - - The userspace tool has the following bit modes: 64-bit + The userspace tool has the following bit modes: 64-bit Userspace rpm: kdump-tools(1.5.5-2ubuntu1.2) - Userspace tool obtained from project website: na - - *Additional Instructions for Sachin Sant / ss...@in.ibm.com: + Userspace tool obtained from project website: na + + *Additional Instructions for Sachin Sant / ss...@in.ibm.com: -Post a private note with access information to the machine that the bug is occuring on. -Attach ltrace and strace of userspace application. == Comment: #2 - MAMATHA INAMDAR mainam...@in.ibm.com - 2015-06-02 02:23:51 == root@alp9:~# /etc/init.d/kdump-tools start Starting kdump-tools: unrecoverable error: short read from/proc/device-tree//ibm,drc-names - * failed to load kdump kernel + * failed to load kdump kernel root@alp9:~# dpkg -l | grep kexec ii kexec-tools 1:2.0.6-0ubuntu2.1 ppc64el tools to support fast kexec reboots root@alp9:~# dpkg -l | grep kdump ii kdump-tools 1.5.5-2ubuntu1.2 all scripts and tools for automating kdump (Linux crash dumps) root@alp9:~# cat /sys/kernel/kexec_crash_loaded 0 root@alp9:~# kdump-config status current state : Not ready to kdump root@alp9:~# dmesg | grep -i crash [0.00] Reserving 2048MB of memory at 128MB for crashkernel (System RAM: 102400MB) [0.00] Kernel command line: BOOT_IMAGE=/boot/vmlinux-3.19.0-18-generic root=UUID=3ea23bcf-7269-432f-bacc-f82c6cdd774e ro splash crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M vt.handoff=7 root@alp9:~# == Comment: #3 - Hari Krishna Bathini hbath...@in.ibm.com - 2015-06-02 07:29:23 == The following upstream commit fixes this issue: --- commit d1932cd592e2a6aaf50ed22cfa2d7562b583854a Author: Anton Blanchard an...@samba.org Date: Tue Dec 2 10:59:40 2014 +1100 - kexec/fs2dt: Use slurp_file_len to avoid partial read of files - - The OPAL firmware is going to embed its symbol map in the device tree. - The size is large enough to be more than a page, and it takes - multiple reads to get the whole file. This is because sysfs uses - the seq_file helpers which do a page at a time. - - Unfortunately fs2dt has no handling for short reads and we die with: - - unrecoverable error: short read from/proc/device-tree//ibm,opal/firmware/symbol-map - - This patch uses the slurp_file_len helper which does the right thing. - It moves the explicit open of the file further down for - add_usable_mem_property and add_dyn_reconf_usable_mem_property. - We should convert both of these to use the buffer provided by - slurp_file_len at some stage. - - Signed-off-by: Anton Blanchard an...@samba.org -
