Hi There,
The MAAS images use the kernels that are available in the archive. Since
this is a kernel issue, I'm retargetting to the linux package in Ubuntu.
If this is already fixed, MAAS will automatically update new images once
the packages are available in the archive, otherwise, please feel free
to use a different kernel (e.g. hwe-16.04) and see if that fixes your
issue. Just make sure your images are latest.
** Changed in: maas
Status: New => Invalid
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1756337
Title:
kernel bug at fscache/operation.c
Status in MAAS:
Invalid
Status in linux package in Ubuntu:
Incomplete
Bug description:
MAAS deployed Ubuntu 16.04 LTS hosts began suffering from either
[577275.774627] FS-Cache:
[577275.777530] FS-Cache: Assertion failed
[577275.781945] FS-Cache: 6 == 5 is false
[577275.786304] ------------[ cut here ]------------
[577275.791662] kernel BUG at
/build/linux-Fk60NP/linux-4.10.0/fs/fscache/operation.c:494!
[577275.800740] invalid opcode: 0000 [#1] SMP
[577275.805415] Modules linked in: vhost_net vhost macvtap macvlan
nf_conntrack_ipv6 nf_defrag_ipv6 xt_physdev br_netfilter ip_set nfnetlink
rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace sunrpc cachefiles fscache $
[577275.885578] ib_core configfs iscsi_tcp libiscsi_tcp libiscsi
scsi_transport_iscsi autofs4 btrfs raid10 raid456 async_raid6_recov
async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0
multipa$
[577275.925771] CPU: 52 PID: 39395 Comm: kworker/u161:1 Not tainted
4.10.0-19-generic #21-Ubuntu
[577275.940896] Hardware name: Dell Inc. PowerEdge R430/0CN7X8, BIOS 2.6.0
10/31/2017
or
[126530.552030] FS-Cache:
[126530.554868] FS-Cache: Assertion failed
[126530.559250] FS-Cache: 1 > 0 is false
[126530.563472] ------------[ cut here ]------------
[126530.568822] kernel BUG at
/build/linux-Fk60NP/linux-4.10.0/fs/fscache/operation.c:68!
[126530.577792] invalid opcode: 0000 [#1] SMP
[126530.582464] Modules linked in: vhost_net vhost macvtap macvlan
nf_conntrack_ipv6 nf_defrag_ipv6 xt_physdev br_netfilter ip_set nfnetlink
rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace sunrpc cachefiles fscache $
[126530.662615] libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 btrfs
raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor
raid6_pq libcrc32c raid1 raid0 multipath linear crct10dif_pclmul $
[126530.700165] CPU: 6 PID: 13971 Comm: CPU 1/KVM Not tainted
4.10.0-19-generic #21-Ubuntu
[126530.709227] Hardware name: Dell Inc. PowerEdge R430/0CN7X8, BIOS 2.7.1
01/26/2018
Possible solution here: https://patchwork.kernel.org/patch/10234815/
Using MAAS: MAAS version: 2.2.2 (6099-g8751f91-0ubuntu1~16.04.1)
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