[Kernel-packages] [Bug 1772412] Re: zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that hangs the system completely
This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
xenial' to 'verification-done-xenial'. If the problem still exists,
change the tag 'verification-needed-xenial' to 'verification-failed-
xenial'.
If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.
See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!
** Tags added: verification-needed-xenial
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https://bugs.launchpad.net/bugs/1772412
Title:
zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343)
that hangs the system completely
Status in linux package in Ubuntu:
Invalid
Status in zfs-linux package in Ubuntu:
Fix Released
Status in linux source package in Bionic:
Fix Released
Status in zfs-linux source package in Bionic:
Fix Released
Bug description:
SRU Bionic
== SRU Justification ==
Intensive I/O such as performed by ZFS send/receive can cause hangs because
of monopolization of the global system_taskq. The outcome is that z_zvol hung
tasks occur and I/O gets blocked.
== Fix ==
Upstream ZFS commit 77d8a0f1a4d0b2f59cee63088f7987cb38e66538 ("Fix
hung z_zvol tasks during 'zfs receive'") fixes this issue, it adds a
dedicated per-pool prefetch taskq that prevents the traverse code from
monopolizing the global (and limited) system_taskq by inappropriately
scheduling long running tasks on it. This fixes the z_zvol hung tasks.
A trivial backport is required for Bionic ZFS.
== Testcase ==
Perform large send/receives. Occasionally they lock up. With the fix,
this issue is addressed and no more lockups occur. Also must pass the
full ZFS ubuntu autotest tests to prove no regressions occur.
== Regression Potential ==
This fix adds more per-pool prefetch taskq's so we have more kernel
resources being used. There is therefore a very small risk that this
may impact ZFS running on memory and CPU constrained systems.
However, the fix is small, has been upstream for a while and is in
Cosmic+ releases and has not caused any regressions, so I think this
is a relatively safe fix.
--
I have experienced the problems fixed by this commit
https://github.com/zfsonlinux/zfs/pull/7343 a few times on my NAS. The
system hangs completely when it occurs. It looks like 0.7.9 brings
other interesting bug fixes that potentially freeze the system.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1772412/+subscriptions
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[Kernel-packages] [Bug 1772412] Re: zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that hangs the system completely
** Tags added: cscc
--
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Packages, which is subscribed to zfs-linux in Ubuntu.
https://bugs.launchpad.net/bugs/1772412
Title:
zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343)
that hangs the system completely
Status in linux package in Ubuntu:
Invalid
Status in zfs-linux package in Ubuntu:
Fix Released
Status in linux source package in Bionic:
Fix Released
Status in zfs-linux source package in Bionic:
Fix Released
Bug description:
SRU Bionic
== SRU Justification ==
Intensive I/O such as performed by ZFS send/receive can cause hangs because
of monopolization of the global system_taskq. The outcome is that z_zvol hung
tasks occur and I/O gets blocked.
== Fix ==
Upstream ZFS commit 77d8a0f1a4d0b2f59cee63088f7987cb38e66538 ("Fix
hung z_zvol tasks during 'zfs receive'") fixes this issue, it adds a
dedicated per-pool prefetch taskq that prevents the traverse code from
monopolizing the global (and limited) system_taskq by inappropriately
scheduling long running tasks on it. This fixes the z_zvol hung tasks.
A trivial backport is required for Bionic ZFS.
== Testcase ==
Perform large send/receives. Occasionally they lock up. With the fix,
this issue is addressed and no more lockups occur. Also must pass the
full ZFS ubuntu autotest tests to prove no regressions occur.
== Regression Potential ==
This fix adds more per-pool prefetch taskq's so we have more kernel
resources being used. There is therefore a very small risk that this
may impact ZFS running on memory and CPU constrained systems.
However, the fix is small, has been upstream for a while and is in
Cosmic+ releases and has not caused any regressions, so I think this
is a relatively safe fix.
--
I have experienced the problems fixed by this commit
https://github.com/zfsonlinux/zfs/pull/7343 a few times on my NAS. The
system hangs completely when it occurs. It looks like 0.7.9 brings
other interesting bug fixes that potentially freeze the system.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1772412/+subscriptions
--
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[Kernel-packages] [Bug 1772412] Re: zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that hangs the system completely
** Changed in: zfs-linux (Ubuntu)
Status: In Progress => Fix Released
--
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Packages, which is subscribed to zfs-linux in Ubuntu.
https://bugs.launchpad.net/bugs/1772412
Title:
zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343)
that hangs the system completely
Status in linux package in Ubuntu:
Invalid
Status in zfs-linux package in Ubuntu:
Fix Released
Status in linux source package in Bionic:
Fix Released
Status in zfs-linux source package in Bionic:
Fix Released
Bug description:
SRU Bionic
== SRU Justification ==
Intensive I/O such as performed by ZFS send/receive can cause hangs because
of monopolization of the global system_taskq. The outcome is that z_zvol hung
tasks occur and I/O gets blocked.
== Fix ==
Upstream ZFS commit 77d8a0f1a4d0b2f59cee63088f7987cb38e66538 ("Fix
hung z_zvol tasks during 'zfs receive'") fixes this issue, it adds a
dedicated per-pool prefetch taskq that prevents the traverse code from
monopolizing the global (and limited) system_taskq by inappropriately
scheduling long running tasks on it. This fixes the z_zvol hung tasks.
A trivial backport is required for Bionic ZFS.
== Testcase ==
Perform large send/receives. Occasionally they lock up. With the fix,
this issue is addressed and no more lockups occur. Also must pass the
full ZFS ubuntu autotest tests to prove no regressions occur.
== Regression Potential ==
This fix adds more per-pool prefetch taskq's so we have more kernel
resources being used. There is therefore a very small risk that this
may impact ZFS running on memory and CPU constrained systems.
However, the fix is small, has been upstream for a while and is in
Cosmic+ releases and has not caused any regressions, so I think this
is a relatively safe fix.
--
I have experienced the problems fixed by this commit
https://github.com/zfsonlinux/zfs/pull/7343 a few times on my NAS. The
system hangs completely when it occurs. It looks like 0.7.9 brings
other interesting bug fixes that potentially freeze the system.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1772412/+subscriptions
--
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[Kernel-packages] [Bug 1772412] Re: zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that hangs the system completely
This bug was fixed in the package zfs-linux - 0.7.5-1ubuntu16.6
---
zfs-linux (0.7.5-1ubuntu16.6) bionic; urgency=medium
* Fix hung z_zvol tasks during 'zfs receive' (LP: #1772412)
- Adds a dedicated, per-pool, prefetch taskq to prevent the traverse
code from monopolizing the global (and limited) system_taskq by
inappropriately scheduling long running tasks on it. This fixes
z_zvol hung tasks.
zfs-linux (0.7.5-1ubuntu16.5) bionic; urgency=medium
* Fix build error with tracepoints enabled (LP: #1828763)
- In b49151d684f44 (bionic kernel master-next branch) tx_waited has been
renamed to tx_dirty_delayed, but only in the tracepoint definition (in
trace_dmu.h) and not in the rest of the code, causing build errors if
zfs tracepoints are enabled; fix by reverting tx_dirty_delayed back to
the original name tx_waited.
-- Colin Ian King Wed, 29 May 2019 17:24:22
+0100
** Changed in: zfs-linux (Ubuntu Bionic)
Status: Fix Committed => Fix Released
--
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1772412
Title:
zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343)
that hangs the system completely
Status in linux package in Ubuntu:
Invalid
Status in zfs-linux package in Ubuntu:
In Progress
Status in linux source package in Bionic:
Fix Released
Status in zfs-linux source package in Bionic:
Fix Released
Bug description:
SRU Bionic
== SRU Justification ==
Intensive I/O such as performed by ZFS send/receive can cause hangs because
of monopolization of the global system_taskq. The outcome is that z_zvol hung
tasks occur and I/O gets blocked.
== Fix ==
Upstream ZFS commit 77d8a0f1a4d0b2f59cee63088f7987cb38e66538 ("Fix
hung z_zvol tasks during 'zfs receive'") fixes this issue, it adds a
dedicated per-pool prefetch taskq that prevents the traverse code from
monopolizing the global (and limited) system_taskq by inappropriately
scheduling long running tasks on it. This fixes the z_zvol hung tasks.
A trivial backport is required for Bionic ZFS.
== Testcase ==
Perform large send/receives. Occasionally they lock up. With the fix,
this issue is addressed and no more lockups occur. Also must pass the
full ZFS ubuntu autotest tests to prove no regressions occur.
== Regression Potential ==
This fix adds more per-pool prefetch taskq's so we have more kernel
resources being used. There is therefore a very small risk that this
may impact ZFS running on memory and CPU constrained systems.
However, the fix is small, has been upstream for a while and is in
Cosmic+ releases and has not caused any regressions, so I think this
is a relatively safe fix.
--
I have experienced the problems fixed by this commit
https://github.com/zfsonlinux/zfs/pull/7343 a few times on my NAS. The
system hangs completely when it occurs. It looks like 0.7.9 brings
other interesting bug fixes that potentially freeze the system.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1772412/+subscriptions
--
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[Kernel-packages] [Bug 1772412] Re: zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that hangs the system completely
verified zfsutils-linux 0.7.5-1ubuntu16.6 with 4.15.0-55.60, tested
against the Ubuntu zfs regression tests, no failures. Looks good to me.
** Tags removed: verification-needed-bionic
** Tags added: verification-done-bionic
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to zfs-linux in Ubuntu.
https://bugs.launchpad.net/bugs/1772412
Title:
zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343)
that hangs the system completely
Status in linux package in Ubuntu:
Invalid
Status in zfs-linux package in Ubuntu:
In Progress
Status in linux source package in Bionic:
Fix Released
Status in zfs-linux source package in Bionic:
Fix Committed
Bug description:
SRU Bionic
== SRU Justification ==
Intensive I/O such as performed by ZFS send/receive can cause hangs because
of monopolization of the global system_taskq. The outcome is that z_zvol hung
tasks occur and I/O gets blocked.
== Fix ==
Upstream ZFS commit 77d8a0f1a4d0b2f59cee63088f7987cb38e66538 ("Fix
hung z_zvol tasks during 'zfs receive'") fixes this issue, it adds a
dedicated per-pool prefetch taskq that prevents the traverse code from
monopolizing the global (and limited) system_taskq by inappropriately
scheduling long running tasks on it. This fixes the z_zvol hung tasks.
A trivial backport is required for Bionic ZFS.
== Testcase ==
Perform large send/receives. Occasionally they lock up. With the fix,
this issue is addressed and no more lockups occur. Also must pass the
full ZFS ubuntu autotest tests to prove no regressions occur.
== Regression Potential ==
This fix adds more per-pool prefetch taskq's so we have more kernel
resources being used. There is therefore a very small risk that this
may impact ZFS running on memory and CPU constrained systems.
However, the fix is small, has been upstream for a while and is in
Cosmic+ releases and has not caused any regressions, so I think this
is a relatively safe fix.
--
I have experienced the problems fixed by this commit
https://github.com/zfsonlinux/zfs/pull/7343 a few times on my NAS. The
system hangs completely when it occurs. It looks like 0.7.9 brings
other interesting bug fixes that potentially freeze the system.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1772412/+subscriptions
--
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Post to : kernel-packages@lists.launchpad.net
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More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1772412] Re: zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that hangs the system completely
This bug was fixed in the package linux - 4.15.0-55.60 --- linux (4.15.0-55.60) bionic; urgency=medium * linux: 4.15.0-55.60 -proposed tracker (LP: #1834954) * Request backport of ceph commits into bionic (LP: #1834235) - ceph: use atomic_t for ceph_inode_info::i_shared_gen - ceph: define argument structure for handle_cap_grant - ceph: flush pending works before shutdown super - ceph: send cap releases more aggressively - ceph: single workqueue for inode related works - ceph: avoid dereferencing invalid pointer during cached readdir - ceph: quota: add initial infrastructure to support cephfs quotas - ceph: quota: support for ceph.quota.max_files - ceph: quota: don't allow cross-quota renames - ceph: fix root quota realm check - ceph: quota: support for ceph.quota.max_bytes - ceph: quota: update MDS when max_bytes is approaching - ceph: quota: add counter for snaprealms with quota - ceph: avoid iput_final() while holding mutex or in dispatch thread * QCA9377 isn't being recognized sometimes (LP: #1757218) - SAUCE: USB: Disable USB2 LPM at shutdown * hns: fix ICMP6 neighbor solicitation messages discard problem (LP: #1833140) - net: hns: fix ICMP6 neighbor solicitation messages discard problem - net: hns: fix unsigned comparison to less than zero * Fix occasional boot time crash in hns driver (LP: #1833138) - net: hns: Fix probabilistic memory overwrite when HNS driver initialized * use-after-free in hns_nic_net_xmit_hw (LP: #1833136) - net: hns: fix KASAN: use-after-free in hns_nic_net_xmit_hw() * hns: attempt to restart autoneg when disabled should report error (LP: #1833147) - net: hns: Restart autoneg need return failed when autoneg off * systemd 237-3ubuntu10.14 ADT test failure on Bionic ppc64el (test-seccomp) (LP: #1821625) - powerpc: sys_pkey_alloc() and sys_pkey_free() system calls - powerpc: sys_pkey_mprotect() system call * [UBUNTU] pkey: Indicate old mkvp only if old and curr. mkvp are different (LP: #1832625) - pkey: Indicate old mkvp only if old and current mkvp are different * [UBUNTU] kernel: Fix gcm-aes-s390 wrong scatter-gather list processing (LP: #1832623) - s390/crypto: fix gcm-aes-s390 selftest failures * System crashes on hot adding a core with drmgr command (4.15.0-48-generic) (LP: #1833716) - powerpc/numa: improve control of topology updates - powerpc/numa: document topology_updates_enabled, disable by default * Kernel modules generated incorrectly when system is localized to a non- English language (LP: #1828084) - scripts: override locale from environment when running recordmcount.pl * [UBUNTU] kernel: Fix wrong dispatching for control domain CPRBs (LP: #1832624) - s390/zcrypt: Fix wrong dispatching for control domain CPRBs * CVE-2019-11815 - net: rds: force to destroy connection if t_sock is NULL in rds_tcp_kill_sock(). * Sound device not detected after resume from hibernate (LP: #1826868) - drm/i915: Force 2*96 MHz cdclk on glk/cnl when audio power is enabled - drm/i915: Save the old CDCLK atomic state - drm/i915: Remove redundant store of logical CDCLK state - drm/i915: Skip modeset for cdclk changes if possible * Handle overflow in proc_get_long of sysctl (LP: #1833935) - sysctl: handle overflow in proc_get_long * Dell XPS 13 (9370) defaults to s2idle sleep/suspend instead of deep, NVMe drains lots of power under s2idle (LP: #1808957) - Revert "UBUNTU: SAUCE: pci/nvme: prevent WDC PC SN720 NVMe from entering D3 and being disabled" - Revert "UBUNTU: SAUCE: nvme: add quirk to not call disable function when suspending" - Revert "UBUNTU: SAUCE: pci: prevent Intel NVMe SSDPEKKF from entering D3" - Revert "SAUCE: nvme: add quirk to not call disable function when suspending" - Revert "SAUCE: pci: prevent sk hynix nvme from entering D3" - PCI: PM: Avoid possible suspend-to-idle issue - PCI: PM: Skip devices in D0 for suspend-to-idle - nvme-pci: Sync queues on reset - nvme: Export get and set features - nvme-pci: Use host managed power state for suspend * linux v4.15 ftbfs on a newer host kernel (e.g. hwe) (LP: #1823429) - selinux: use kernel linux/socket.h for genheaders and mdp * 32-bit x86 kernel 4.15.0-50 crash in vmalloc_sync_all (LP: #1830433) - x86/mm/pat: Disable preemption around __flush_tlb_all() - x86/mm: Drop usage of __flush_tlb_all() in kernel_physical_mapping_init() - x86/mm: Disable ioremap free page handling on x86-PAE - ioremap: Update pgtable free interfaces with addr - x86/mm: Add TLB purge to free pmd/pte page interfaces - x86/init: fix build with CONFIG_SWAP=n - x86/mm: provide pmdp_establish() helper - x86/mm: Use WRITE_ONCE() when setting PTEs * hinic: fix oops due to race in set_rx_mode (LP: #1832048) - hinic: fix a bug in
[Kernel-packages] [Bug 1772412] Re: zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that hangs the system completely
This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
bionic' to 'verification-done-bionic'. If the problem still exists,
change the tag 'verification-needed-bionic' to 'verification-failed-
bionic'.
If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.
See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!
** Tags added: verification-needed-bionic
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to zfs-linux in Ubuntu.
https://bugs.launchpad.net/bugs/1772412
Title:
zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343)
that hangs the system completely
Status in linux package in Ubuntu:
Invalid
Status in zfs-linux package in Ubuntu:
In Progress
Status in linux source package in Bionic:
Fix Committed
Status in zfs-linux source package in Bionic:
Fix Committed
Bug description:
SRU Bionic
== SRU Justification ==
Intensive I/O such as performed by ZFS send/receive can cause hangs because
of monopolization of the global system_taskq. The outcome is that z_zvol hung
tasks occur and I/O gets blocked.
== Fix ==
Upstream ZFS commit 77d8a0f1a4d0b2f59cee63088f7987cb38e66538 ("Fix
hung z_zvol tasks during 'zfs receive'") fixes this issue, it adds a
dedicated per-pool prefetch taskq that prevents the traverse code from
monopolizing the global (and limited) system_taskq by inappropriately
scheduling long running tasks on it. This fixes the z_zvol hung tasks.
A trivial backport is required for Bionic ZFS.
== Testcase ==
Perform large send/receives. Occasionally they lock up. With the fix,
this issue is addressed and no more lockups occur. Also must pass the
full ZFS ubuntu autotest tests to prove no regressions occur.
== Regression Potential ==
This fix adds more per-pool prefetch taskq's so we have more kernel
resources being used. There is therefore a very small risk that this
may impact ZFS running on memory and CPU constrained systems.
However, the fix is small, has been upstream for a while and is in
Cosmic+ releases and has not caused any regressions, so I think this
is a relatively safe fix.
--
I have experienced the problems fixed by this commit
https://github.com/zfsonlinux/zfs/pull/7343 a few times on my NAS. The
system hangs completely when it occurs. It looks like 0.7.9 brings
other interesting bug fixes that potentially freeze the system.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1772412/+subscriptions
--
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Post to : kernel-packages@lists.launchpad.net
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More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1772412] Re: zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that hangs the system completely
Hello Sam, or anyone else affected,
Accepted zfs-linux into bionic-proposed. The package will build now and
be available at https://launchpad.net/ubuntu/+source/zfs-
linux/0.7.5-1ubuntu16.6 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 on 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-bionic to verification-done-bionic. If it does not
fix the bug for you, please add a comment stating that, and change the
tag to verification-failed-bionic. In either case, without details of
your testing we will not be able to proceed.
Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in
advance for helping!
N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.
** Changed in: zfs-linux (Ubuntu Bionic)
Status: New => Fix Committed
--
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https://bugs.launchpad.net/bugs/1772412
Title:
zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343)
that hangs the system completely
Status in linux package in Ubuntu:
Invalid
Status in zfs-linux package in Ubuntu:
In Progress
Status in linux source package in Bionic:
Fix Committed
Status in zfs-linux source package in Bionic:
Fix Committed
Bug description:
SRU Bionic
== SRU Justification ==
Intensive I/O such as performed by ZFS send/receive can cause hangs because
of monopolization of the global system_taskq. The outcome is that z_zvol hung
tasks occur and I/O gets blocked.
== Fix ==
Upstream ZFS commit 77d8a0f1a4d0b2f59cee63088f7987cb38e66538 ("Fix
hung z_zvol tasks during 'zfs receive'") fixes this issue, it adds a
dedicated per-pool prefetch taskq that prevents the traverse code from
monopolizing the global (and limited) system_taskq by inappropriately
scheduling long running tasks on it. This fixes the z_zvol hung tasks.
A trivial backport is required for Bionic ZFS.
== Testcase ==
Perform large send/receives. Occasionally they lock up. With the fix,
this issue is addressed and no more lockups occur. Also must pass the
full ZFS ubuntu autotest tests to prove no regressions occur.
== Regression Potential ==
This fix adds more per-pool prefetch taskq's so we have more kernel
resources being used. There is therefore a very small risk that this
may impact ZFS running on memory and CPU constrained systems.
However, the fix is small, has been upstream for a while and is in
Cosmic+ releases and has not caused any regressions, so I think this
is a relatively safe fix.
--
I have experienced the problems fixed by this commit
https://github.com/zfsonlinux/zfs/pull/7343 a few times on my NAS. The
system hangs completely when it occurs. It looks like 0.7.9 brings
other interesting bug fixes that potentially freeze the system.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1772412/+subscriptions
--
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[Kernel-packages] [Bug 1772412] Re: zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that hangs the system completely
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: New
** Also affects: zfs-linux (Ubuntu Bionic)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu)
Status: New => Invalid
** Changed in: linux (Ubuntu Bionic)
Status: New => Fix Committed
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https://bugs.launchpad.net/bugs/1772412
Title:
zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343)
that hangs the system completely
Status in linux package in Ubuntu:
Invalid
Status in zfs-linux package in Ubuntu:
In Progress
Status in linux source package in Bionic:
Fix Committed
Status in zfs-linux source package in Bionic:
New
Bug description:
SRU Bionic
== SRU Justification ==
Intensive I/O such as performed by ZFS send/receive can cause hangs because
of monopolization of the global system_taskq. The outcome is that z_zvol hung
tasks occur and I/O gets blocked.
== Fix ==
Upstream ZFS commit 77d8a0f1a4d0b2f59cee63088f7987cb38e66538 ("Fix
hung z_zvol tasks during 'zfs receive'") fixes this issue, it adds a
dedicated per-pool prefetch taskq that prevents the traverse code from
monopolizing the global (and limited) system_taskq by inappropriately
scheduling long running tasks on it. This fixes the z_zvol hung tasks.
A trivial backport is required for Bionic ZFS.
== Testcase ==
Perform large send/receives. Occasionally they lock up. With the fix,
this issue is addressed and no more lockups occur. Also must pass the
full ZFS ubuntu autotest tests to prove no regressions occur.
== Regression Potential ==
This fix adds more per-pool prefetch taskq's so we have more kernel
resources being used. There is therefore a very small risk that this
may impact ZFS running on memory and CPU constrained systems.
However, the fix is small, has been upstream for a while and is in
Cosmic+ releases and has not caused any regressions, so I think this
is a relatively safe fix.
--
I have experienced the problems fixed by this commit
https://github.com/zfsonlinux/zfs/pull/7343 a few times on my NAS. The
system hangs completely when it occurs. It looks like 0.7.9 brings
other interesting bug fixes that potentially freeze the system.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1772412/+subscriptions
--
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More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1772412] Re: zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that hangs the system completely
Fix sent to kernel team mailing list for review:
https://lists.ubuntu.com/archives/kernel-team/2019-May/100990.html
** Description changed:
SRU Bionic
== SRU Justification ==
Intensive I/O such as performed by ZFS send/receive can cause hangs because
of monopolization of the global system_taskq. The outcome is that z_zvol hung
tasks occur and I/O gets blocked.
== Fix ==
Upstream ZFS commit 77d8a0f1a4d0b2f59cee63088f7987cb38e66538 ("Fix hung
- z_zvol tasks during 'zfs receive'" fixes this issue, it adds a dedicated
- per-pool prefetch taskq that prevents the traverse code from
+ z_zvol tasks during 'zfs receive'") fixes this issue, it adds a
+ dedicated per-pool prefetch taskq that prevents the traverse code from
monopolizing the global (and limited) system_taskq by inappropriately
scheduling long running tasks on it. This fixes the z_zvol hung tasks. A
trivial backport is required for Bionic ZFS.
== Testcase ==
Perform large send/receives. Occasionally they lock up. With the fix,
this issue is addressed and no more lockups occur. Also must pass the
full ZFS ubuntu autotest tests to prove no regressions occur.
== Regression Potential ==
This fix adds more per-pool prefetch taskq's so we have more kernel
resources being used. There is therefore a very small risk that this may
impact ZFS running on memory and CPU constrained systems. However, the
fix is small, has been upstream for a while and is in Cosmic+ releases
and has not caused any regressions, so I think this is a relatively safe
fix.
--
I have experienced the problems fixed by this commit
https://github.com/zfsonlinux/zfs/pull/7343 a few times on my NAS. The
system hangs completely when it occurs. It looks like 0.7.9 brings other
interesting bug fixes that potentially freeze the system.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to zfs-linux in Ubuntu.
https://bugs.launchpad.net/bugs/1772412
Title:
zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343)
that hangs the system completely
Status in zfs-linux package in Ubuntu:
In Progress
Bug description:
SRU Bionic
== SRU Justification ==
Intensive I/O such as performed by ZFS send/receive can cause hangs because
of monopolization of the global system_taskq. The outcome is that z_zvol hung
tasks occur and I/O gets blocked.
== Fix ==
Upstream ZFS commit 77d8a0f1a4d0b2f59cee63088f7987cb38e66538 ("Fix
hung z_zvol tasks during 'zfs receive'") fixes this issue, it adds a
dedicated per-pool prefetch taskq that prevents the traverse code from
monopolizing the global (and limited) system_taskq by inappropriately
scheduling long running tasks on it. This fixes the z_zvol hung tasks.
A trivial backport is required for Bionic ZFS.
== Testcase ==
Perform large send/receives. Occasionally they lock up. With the fix,
this issue is addressed and no more lockups occur. Also must pass the
full ZFS ubuntu autotest tests to prove no regressions occur.
== Regression Potential ==
This fix adds more per-pool prefetch taskq's so we have more kernel
resources being used. There is therefore a very small risk that this
may impact ZFS running on memory and CPU constrained systems.
However, the fix is small, has been upstream for a while and is in
Cosmic+ releases and has not caused any regressions, so I think this
is a relatively safe fix.
--
I have experienced the problems fixed by this commit
https://github.com/zfsonlinux/zfs/pull/7343 a few times on my NAS. The
system hangs completely when it occurs. It looks like 0.7.9 brings
other interesting bug fixes that potentially freeze the system.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1772412/+subscriptions
--
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Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1772412] Re: zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that hangs the system completely
** Description changed:
+ SRU Bionic
+
+ == SRU Justification ==
+
+ Intensive I/O such as performed by ZFS send/receive can cause hangs because
of monopolization of the global system_taskq. The outcome is that z_zvol hung
+ tasks occur and I/O gets blocked.
+
+ == Fix ==
+
+ Upstream ZFS commit 77d8a0f1a4d0b2f59cee63088f7987cb38e66538 ("Fix hung
+ z_zvol tasks during 'zfs receive'" fixes this issue, it adds a dedicated
+ per-pool prefetch taskq that prevents the traverse code from
+ monopolizing the global (and limited) system_taskq by inappropriately
+ scheduling long running tasks on it. This fixes the z_zvol hung tasks. A
+ trivial backport is required for Bionic ZFS.
+
+ == Testcase ==
+
+ Perform large send/receives. Occasionally they lock up. With the fix,
+ this issue is addressed and no more lockups occur. Also must pass the
+ full ZFS ubuntu autotest tests to prove no regressions occur.
+
+ == Regression Potential ==
+
+ This fix adds more per-pool prefetch taskq's so we have more kernel
+ resources being used. There is therefore a very small risk that this may
+ impact ZFS running on memory and CPU constrained systems. However, the
+ fix is small, has been upstream for a while and is in Cosmic+ releases
+ and has not caused any regressions, so I think this is a relatively safe
+ fix.
+
+ --
+
I have experienced the problems fixed by this commit
https://github.com/zfsonlinux/zfs/pull/7343 a few times on my NAS. The
system hangs completely when it occurs. It looks like 0.7.9 brings other
interesting bug fixes that potentially freeze the system.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to zfs-linux in Ubuntu.
https://bugs.launchpad.net/bugs/1772412
Title:
zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343)
that hangs the system completely
Status in zfs-linux package in Ubuntu:
In Progress
Bug description:
SRU Bionic
== SRU Justification ==
Intensive I/O such as performed by ZFS send/receive can cause hangs because
of monopolization of the global system_taskq. The outcome is that z_zvol hung
tasks occur and I/O gets blocked.
== Fix ==
Upstream ZFS commit 77d8a0f1a4d0b2f59cee63088f7987cb38e66538 ("Fix
hung z_zvol tasks during 'zfs receive'" fixes this issue, it adds a
dedicated per-pool prefetch taskq that prevents the traverse code from
monopolizing the global (and limited) system_taskq by inappropriately
scheduling long running tasks on it. This fixes the z_zvol hung tasks.
A trivial backport is required for Bionic ZFS.
== Testcase ==
Perform large send/receives. Occasionally they lock up. With the fix,
this issue is addressed and no more lockups occur. Also must pass the
full ZFS ubuntu autotest tests to prove no regressions occur.
== Regression Potential ==
This fix adds more per-pool prefetch taskq's so we have more kernel
resources being used. There is therefore a very small risk that this
may impact ZFS running on memory and CPU constrained systems.
However, the fix is small, has been upstream for a while and is in
Cosmic+ releases and has not caused any regressions, so I think this
is a relatively safe fix.
--
I have experienced the problems fixed by this commit
https://github.com/zfsonlinux/zfs/pull/7343 a few times on my NAS. The
system hangs completely when it occurs. It looks like 0.7.9 brings
other interesting bug fixes that potentially freeze the system.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1772412/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1772412] Re: zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that hangs the system completely
** Changed in: zfs-linux (Ubuntu) Status: Fix Released => In Progress ** Changed in: zfs-linux (Ubuntu) Importance: Undecided => High ** Changed in: zfs-linux (Ubuntu) Assignee: (unassigned) => Colin Ian King (colin-king) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in Ubuntu. https://bugs.launchpad.net/bugs/1772412 Title: zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that hangs the system completely Status in zfs-linux package in Ubuntu: In Progress Bug description: I have experienced the problems fixed by this commit https://github.com/zfsonlinux/zfs/pull/7343 a few times on my NAS. The system hangs completely when it occurs. It looks like 0.7.9 brings other interesting bug fixes that potentially freeze the system. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1772412/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1772412] Re: zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that hangs the system completely
Your upgrade is done, but for the record, installing the HWE kernel doesn't remove the old kernel. So you still have the option to go back to that in the GRUB menu. Also, once you're sure the HWE kernel is working, you'll probably want to remove the linux-image-generic package so you're not continuously upgrading two sets of kernels. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in Ubuntu. https://bugs.launchpad.net/bugs/1772412 Title: zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that hangs the system completely Status in zfs-linux package in Ubuntu: Fix Released Bug description: I have experienced the problems fixed by this commit https://github.com/zfsonlinux/zfs/pull/7343 a few times on my NAS. The system hangs completely when it occurs. It looks like 0.7.9 brings other interesting bug fixes that potentially freeze the system. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1772412/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1772412] Re: zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that hangs the system completely
Thanks - I upgraded the server which was receiving the ZFS snapshot and things _seem_ to be working well. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in Ubuntu. https://bugs.launchpad.net/bugs/1772412 Title: zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that hangs the system completely Status in zfs-linux package in Ubuntu: Fix Released Bug description: I have experienced the problems fixed by this commit https://github.com/zfsonlinux/zfs/pull/7343 a few times on my NAS. The system hangs completely when it occurs. It looks like 0.7.9 brings other interesting bug fixes that potentially freeze the system. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1772412/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1772412] Re: zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that hangs the system completely
Check out https://wiki.ubuntu.com/Kernel/LTSEnablementStack. This is the formal way Ubuntu provides newer kernels (and as such newer zfs versions) during the lifecycle of an LTS release. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in Ubuntu. https://bugs.launchpad.net/bugs/1772412 Title: zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that hangs the system completely Status in zfs-linux package in Ubuntu: Fix Released Bug description: I have experienced the problems fixed by this commit https://github.com/zfsonlinux/zfs/pull/7343 a few times on my NAS. The system hangs completely when it occurs. It looks like 0.7.9 brings other interesting bug fixes that potentially freeze the system. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1772412/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1772412] Re: zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that hangs the system completely
Is this answer correct with respect to `hwe` - https://askubuntu.com/a/248936/911062 ? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in Ubuntu. https://bugs.launchpad.net/bugs/1772412 Title: zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that hangs the system completely Status in zfs-linux package in Ubuntu: Fix Released Bug description: I have experienced the problems fixed by this commit https://github.com/zfsonlinux/zfs/pull/7343 a few times on my NAS. The system hangs completely when it occurs. It looks like 0.7.9 brings other interesting bug fixes that potentially freeze the system. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1772412/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1772412] Re: zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that hangs the system completely
What does `hwe` stand for? Is upgrading the kernel like this safe in production? What're the chance that the system is going to not reboot cleanly? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in Ubuntu. https://bugs.launchpad.net/bugs/1772412 Title: zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that hangs the system completely Status in zfs-linux package in Ubuntu: Fix Released Bug description: I have experienced the problems fixed by this commit https://github.com/zfsonlinux/zfs/pull/7343 a few times on my NAS. The system hangs completely when it occurs. It looks like 0.7.9 brings other interesting bug fixes that potentially freeze the system. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1772412/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1772412] Re: zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that hangs the system completely
ZFS 0.7.9 was released in Cosmic (18.10). You could update to Cosmic. Alternatively, on 18.04, you can install the HWE kernel package: linux- image-generic-hwe-18.04 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in Ubuntu. https://bugs.launchpad.net/bugs/1772412 Title: zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that hangs the system completely Status in zfs-linux package in Ubuntu: Fix Released Bug description: I have experienced the problems fixed by this commit https://github.com/zfsonlinux/zfs/pull/7343 a few times on my NAS. The system hangs completely when it occurs. It looks like 0.7.9 brings other interesting bug fixes that potentially freeze the system. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1772412/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1772412] Re: zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that hangs the system completely
I noticed that the status of this bug has been changed to `fix released`. Where/how has the fix been released and how does one patch a live Ubuntu 18.04.2 system to get this bugfix? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in Ubuntu. https://bugs.launchpad.net/bugs/1772412 Title: zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that hangs the system completely Status in zfs-linux package in Ubuntu: Fix Released Bug description: I have experienced the problems fixed by this commit https://github.com/zfsonlinux/zfs/pull/7343 a few times on my NAS. The system hangs completely when it occurs. It looks like 0.7.9 brings other interesting bug fixes that potentially freeze the system. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1772412/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1772412] Re: zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that hangs the system completely
** Changed in: zfs-linux (Ubuntu) Status: New => Fix Released -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in Ubuntu. https://bugs.launchpad.net/bugs/1772412 Title: zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that hangs the system completely Status in zfs-linux package in Ubuntu: Fix Released Bug description: I have experienced the problems fixed by this commit https://github.com/zfsonlinux/zfs/pull/7343 a few times on my NAS. The system hangs completely when it occurs. It looks like 0.7.9 brings other interesting bug fixes that potentially freeze the system. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1772412/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
