** No longer affects: linux (Ubuntu)
** No longer affects: linux (Ubuntu Bionic)
** No longer affects: linux (Ubuntu Cosmic)
** No longer affects: linux (Ubuntu Disco)
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This bug was fixed in the package initramfs-tools - 0.131ubuntu19
---
initramfs-tools (0.131ubuntu19) disco; urgency=medium
* Add modules for nvme path components on multipath nvme. LP: #1778844
-- Thadeu Lima de Souza Cascardo Tue, 26 Mar
2019 14:49:29 -0300
** Changed in:
initramfs-tools uploaded for disco. Thadeu, do you want to prepare a
separate debdiff for bionic and cosmic?
** Changed in: initramfs-tools (Ubuntu Disco)
Status: In Progress => Fix Committed
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Hi Thadeu, thanks for the update.
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https://bugs.launchpad.net/bugs/1778844
Title:
nvme multipath does not report path relationships
Status in The Ubuntu-power-systems
Hi, Andrew, with the debdiff attached and ubuntu sponsors team
subscribed, now we should wait for someone on that team to sponsor that
update. With the SRU template attached, the only thing blocking that
sponsorship now is that disco is now on freeze, so the sponsor is the
one who would decide
Next step: Thadeu to propose the diff described in comment #53 into the archive.
(If this incorrect, please flag.)
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https://bugs.launchpad.net/bugs/1778844
Title:
nvme
** No longer affects: makedumpfile (Ubuntu)
** No longer affects: makedumpfile (Ubuntu Bionic)
** No longer affects: makedumpfile (Ubuntu Cosmic)
** No longer affects: makedumpfile (Ubuntu Disco)
** Changed in: initramfs-tools (Ubuntu Bionic)
Importance: Undecided => Critical
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** Changed in: ubuntu-power-systems
Status: Won't Fix => In Progress
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https://bugs.launchpad.net/bugs/1778844
Title:
nvme multipath does not report path
** Patch added: "initramfs-tools_0.131ubuntu19.debdiff"
https://bugs.launchpad.net/ubuntu-power-systems/+bug/1778844/+attachment/5249521/+files/initramfs-tools_0.131ubuntu19.debdiff
** Description changed:
+ [Impact]
+ initramfs created with MODULES=dep or kdump initrd won't boot a system
That's an OOM problem. Just increase the reserved crashkernel memory
size and test again, please.
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https://bugs.launchpad.net/bugs/1778844
Title:
nvme multipath
Hi, Andrew and Hari.
The original issue is only resolved by using an initramfs-tools from my
ppa. We still need to get this fix included in our releases. I will
start working to get this in disco.
Cascardo.
** Changed in: initramfs-tools (Ubuntu)
Status: Invalid => In Progress
** Also
Thanks. Closing out the bug.
** Changed in: ubuntu-power-systems
Status: In Progress => Won't Fix
** Changed in: initramfs-tools (Ubuntu)
Status: Confirmed => Invalid
** Changed in: initramfs-tools (Ubuntu Bionic)
Status: Confirmed => Invalid
** Changed in: initramfs-tools
** Changed in: ubuntu-power-systems
Status: Confirmed => In Progress
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https://bugs.launchpad.net/bugs/1778844
Title:
nvme multipath does not report path
The system has too many devices, so too many drivers are using too much
memory. So, the system goes out-of-memory before makedumpfile is
complete. Please, reserve more memory on crashkernel, reboot the system
and repeat the crash test.
To reserve more memory on crashkernel, edit file
** Changed in: ubuntu-power-systems
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1778844
Title:
nvme multipath does not report path
** Changed in: ubuntu-power-systems
Status: In Progress => Incomplete
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https://bugs.launchpad.net/bugs/1778844
Title:
nvme multipath does not report path
I have pushed a version of initramfs-tools to my ppa that seems to fix
the problem. Can IBM test it?
add-apt-repository ppa:cascardo/kdump2
It's a version for bionic. Only initramfs-tools should come from this
source. kdump-tools and makedumpfile should be from bionic-updates or
bionic.
After
On 01/15/2019 09:26 AM, Thadeu Lima de Souza Cascardo wrote:
> Upstream is a little reluctant to accept my changes, and seems to
> suggest that we find out the layout of the paths some other way (which
> is possible, but would be such a special case on initramfs-tools, only
> for nvme).
>
>
Upstream is a little reluctant to accept my changes, and seems to
suggest that we find out the layout of the paths some other way (which
is possible, but would be such a special case on initramfs-tools, only
for nvme).
Cascardo.
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https://lore.kernel.org/linux-block/20181213113549.GA7543@calabresa/T/#t
Upstream discussion in progress.
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https://bugs.launchpad.net/bugs/1778844
Title:
nvme
Upstream discussion is progressing. I have tested some patches from hch,
will send him some feedback later today and post the links here.
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I have been working upstream to get this fixed on the nvme driver, but
it might still take some time, I already have done a back and forth with
hch. Will send a v3 later this month.
Meanwhile, there are multiple workarounds we documented so far in the
bug, namely:
1) Disable nvme multipath,
** Changed in: ubuntu-power-systems
Status: Triaged => In Progress
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https://bugs.launchpad.net/bugs/1778844
Title:
nvme multipath does not report path
First piece of the puzzle submitted:
http://lists.infradead.org/pipermail/linux-nvme/2018-September/020174.html
Tested with a small change on initramfs-tools, though I will wait for
comments on the first one before submitting that to initramfs-tools
upstream.
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Just create a /etc/modprobe.d/nvme.conf file with the following
contents, recreate initrd, remove kdump initrds so they are recreated in
the next boot, then reboot.
# cat /etc/modprobe.d/nvme.conf
options nvme-core multipath=0
# update-initramfs -u
# rm /var/lib/kdump/initrd.img*
# reboot
--
i downloaded that, and tried to poke it.
First of all, i've never seen a 77MB tarball of /sys alone.
Also unpacking that, is dangerous as it does explode in size. However, is
debugging that, please only _list_ the files present in the tarball and only
extract things you need/want.
Reuploaded to
As a workaround, I suggest setting nvme-core.ko multipath=0 parameter.
Can you try that, rebooting, recreating the kdump-tools initrd, then
crashing?
Cascardo.
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So, the hidden disk was introduced by hch as commit
8ddcd653257c18a669fcb75ee42c37054908e0d6 just to support nvme multipath.
This thing prevented lsblk from working when there were slaves under the
multipath nvme, as lsblk would postpone processing those, and lsblk
could not process the paths
** Summary changed:
- ISST-LTE:PNV:Ubuntu180401:Witherspoon:woo: After triggering crash,kdump is
not working and system enters into initramfs state
+ nvme multipath does not report path relationships
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