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Message #10188
[Bug 1647400] Re: system freeze when swapping to encrypted swap partition
This bug was fixed in the package linux - 4.4.0-59.80
---------------
linux (4.4.0-59.80) xenial; urgency=low
[ John Donnelly ]
* Release Tracking Bug
- LP: #1654282
* [2.1.1] MAAS has nvme0n1 set as boot disk, curtin fails (LP: #1651602)
- (fix) nvme: only require 1 interrupt vector, not 2+
linux (4.4.0-58.79) xenial; urgency=low
[ Luis Henriques ]
* Release Tracking Bug
- LP: #1651402
* Support ACPI probe for IIO sensor drivers from ST Micro (LP: #1650123)
- SAUCE: iio: st_sensors: match sensors using ACPI handle
- SAUCE: iio: st_accel: Support sensor i2c probe using acpi
- SAUCE: iio: st_pressure: Support i2c probe using acpi
- [Config] CONFIG_HTS221=m, CONFIG_HTS221_I2C=m, CONFIG_HTS221_SPI=m
* Fix channel data parsing in ST Micro sensor IIO drivers (LP: #1650189)
- SAUCE: iio: common: st_sensors: fix channel data parsing
* ST Micro lng2dm 3-axis "femto" accelerometer support (LP: #1650112)
- SAUCE: iio: st-accel: add support for lis2dh12
- SAUCE: iio: st_sensors: support active-low interrupts
- SAUCE: iio: accel: Add support for the h3lis331dl accelerometer
- SAUCE: iio: st_sensors: verify interrupt event to status
- SAUCE: iio: st_sensors: support open drain mode
- SAUCE: iio:st_sensors: fix power regulator usage
- SAUCE: iio: st_sensors: switch to a threaded interrupt
- SAUCE: iio: accel: st_accel: Add lis3l02dq support
- SAUCE: iio: st_sensors: fix scale configuration for h3lis331dl
- SAUCE: iio: accel: st_accel: add support to lng2dm
- SAUCE: iio: accel: st_accel: inline per-sensor data
- SAUCE: Documentation: dt: iio: accel: add lng2dm sensor device binding
* ST Micro hts221 relative humidity sensor support (LP: #1650116)
- SAUCE: iio: humidity: add support to hts221 rh/temp combo device
- SAUCE: Documentation: dt: iio: humidity: add hts221 sensor device binding
- SAUCE: iio: humidity: remove
- SAUCE: iio: humidity: Support acpi probe for hts211
* crypto : tolerate new crypto hardware for z Systems (LP: #1644557)
- s390/zcrypt: Introduce CEX6 toleration
* Acer, Inc ID 5986:055a is useless after 14.04.2 installed. (LP: #1433906)
- uvcvideo: uvc_scan_fallback() for webcams with broken chain
* vmxnet3 driver could causes kernel panic with v4.4 if LRO enabled.
(LP: #1650635)
- vmxnet3: segCnt can be 1 for LRO packets
* system freeze when swapping to encrypted swap partition (LP: #1647400)
- mm, oom: rework oom detection
- mm: throttle on IO only when there are too many dirty and writeback pages
* Kernel Fixes to get TCMU File Backed Optical to work (LP: #1646204)
- target/user: Use sense_reason_t in tcmu_queue_cmd_ring
- target/user: Return an error if cmd data size is too large
- target/user: Fix comments to not refer to data ring
- SAUCE: (no-up) target/user: Fix use-after-free of tcmu_cmds if they are
expired
* CVE-2016-9756
- KVM: x86: drop error recovery in em_jmp_far and em_ret_far
* Dell Precision 5520 & 3520 freezes at login screent (LP: #1650054)
- ACPI / blacklist: add _REV quirks for Dell Precision 5520 and 3520
* CVE-2016-9794
- ALSA: pcm : Call kill_fasync() in stream lock
* Allow fuse user namespace mounts by default in xenial (LP: #1634964)
- (namespace) mnt: Move the FS_USERNS_MOUNT check into sget_userns
- (namespace) Revert "UBUNTU: SAUCE: fs: Refuse uid/gid changes which don't
map into s_user_ns"
- (namespace) fs: Refuse uid/gid changes which don't map into s_user_ns
- (namespace) Revert "UBUNTU: SAUCE: fs: Update posix_acl support to handle
user namespace mounts"
- (namespace) vfs: Verify acls are valid within superblock's s_user_ns.
- SAUCE: (namespace) posix_acl: Export posix_acl_fix_xattr_userns() to modules
- SAUCE: (namespace) fuse: Translate ids in posix acl xattrs
- (namespace) vfs: Don't modify inodes with a uid or gid unknown to the vfs
- (namespace) vfs: Don't create inodes with a uid or gid unknown to the vfs
- (namespace) Revert "UBUNTU: SAUCE: quota: Require that qids passed to
dqget() be valid and map into s_user_ns"
- (namespace) Revert "UBUNTU: SAUCE: quota: Convert ids relative to s_user_ns"
- (namespace) quota: Ensure qids map to the filesystem
- (namespace) quota: Handle quota data stored in s_user_ns in quota_setxquota
- (namespace) dquot: For now explicitly don't support filesystems outside of
init_user_ns
- (namespace) Revert "UBUNTU: SAUCE: ima/evm: Allow root in s_user_ns to set
xattrs"
- SAUCE: (namespace) security/integrity: Harden against malformed xattrs
- (namespace) Revert "UBUNTU: SAUCE: fs: Allow superblock owner to change
ownership of inodes with unmappable ids"
- SAUCE: (namespace) fs: Allow superblock owner to change ownership of inodes
- (namespace) Revert "UBUNTU: SAUCE: fs: Don't remove suid for CAP_FSETID in
s_user_ns"
- SAUCE: (namespace) fs: Don't remove suid for CAP_FSETID for userns root
- SAUCE: (namespace) fuse: Allow user namespace mounts by default
* Boot crash in xen_send_IPI_one (LP: #1649821)
- xen/qspinlock: Don't kick CPU if IRQ is not initialized
* linux: Staging modules should be unsigned (LP: #1642368)
- [Debian] Suppress module signing for staging drivers
- SAUCE: Add rtl drivers to signature inclusion list
* Ethernet not work after upgrade from kernel 3.19 to 4.4 [10ec:8168]
(LP: #1648279)
- ACPI / blacklist: Make Dell Latitude 3350 ethernet work
* CVE-2016-9793
- net: avoid signed overflows for SO_{SND|RCV}BUFFORCE
* [Hyper-V] Kernel panic not functional on 32bit Ubuntu 14.10, 15.04, and
15.10 (LP: #1400319)
- Drivers: hv: avoid vfree() on crash
* [Hyper-V] netvsc: fix incorrect receive checksum offloading (LP: #1636656)
- netvsc: fix incorrect receive checksum offloading
-- John Donnelly <john.donnelly@xxxxxxxxxxxxx> Thu, 05 Jan 2017
12:49:16 +0000
** Changed in: linux (Ubuntu Xenial)
Status: Fix Committed => Fix Released
** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2016-9756
** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2016-9793
** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2016-9794
--
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भाषा समायोजकहरुको समूह, which is subscribed to Xenial.
Matching subscriptions: Ubuntu 16.04 Bugs
https://bugs.launchpad.net/bugs/1647400
Title:
system freeze when swapping to encrypted swap partition
Status in Ubuntu on IBM z Systems:
Fix Committed
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Xenial:
Fix Released
Bug description:
== Comment: #0 - Bernd-Rainer Bresser <BRESSERB@xxxxxxxxxx> - 2016-12-05 04:27:00 ==
+++ This bug was initially created as a clone of Bug #147836 +++
---Problem Description---
When the system is installed with encrypted swap partition the attempt to swap ends in a system freeze. No error, no dump, the system needs to be reloaded.
Contact Information = Bernd-Rainer Bresser/Germany/IBM, Wen Yi AG Gao/China/IBM
---uname output---
Linux s38lp65 4.4.0-36-generic #55-Ubuntu SMP Thu Aug 11 18:05:09 UTC 2016 s390x s390x s390x GNU/Linux
Machine Type = z13 LPAR
---System Hang---
System is frozen. No error, no dump, the system needs to be reloaded.
---Debugger---
A debugger is not configured
---Steps to Reproduce---
1. install a system with encrypted swap partition. This can be done using the installer or via manual updates to /etc/fstab and /etc/crypttab.
2. Verify encrypted swap partition exists
cryptsetup status kvmibm-swap
/dev/mapper/kvmibm-swap is active and is in use.
type: PLAIN
cipher: aes-xts-plain64:sha256
keysize: 256 bits
device: /dev/dasda2
offset: 0 sectors
size: 8388672 sectors
mode: read/write
3. force swapping
this can be done by a command like this (if the system has 8GB memory)
dd if=/dev/zero of=/dev/null ibs=16k obs=8G count=2MB
Stack trace output:
no
Oops output:
no
System Dump Location:
*Additional Instructions for Bernd-Rainer Bresser/Germany/IBM, Wen Yi AG Gao/China/IBM:
-Attach sysctl -a output output to the bug.
== Comment: #1 - Bernd-Rainer Bresser <BRESSERB@xxxxxxxxxx> - 2016-12-05 04:33:24 ==
- the problem was originally found on KVM for IBM z 1.1.3
- test on Ubuntu 16.04.1 showed the same issue here
- on KVM for IBM z 1.1.3 the problem could be solved/circumvented by reverting
commit 564e81a57f9788b1475127012e0fd44e9049e342
Author: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>
Date: Fri Feb 5 15:36:30 2016 -0800
mm, vmstat: fix wrong WQ sleep when memory reclaim doesn't make any progress
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