Fix occasional boot time crash in hns driver

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-cosmic' to 'verification-done-cosmic'. If the problem still exists, change the tag 'verification-needed-cosmic' to 'verification-failed-cosmic'.

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!

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!

Verification:

= Disco =
ubuntu@d05-3:~$ cat /proc/version
Linux version 5.0.0-21-generic (buildd@bos02-arm64-046) (gcc version 7.4.0 (Ubuntu/Linaro 7.4.0-1ubuntu1~18.04.1)) #22~18.04.1-Ubuntu SMP Thu Jul 4 17:25:45 UTC 2019
ubuntu@d05-3:~$ dmesg | grep hns
[ 9.183430] hns_dsaf HISI00B2:00: no mc-mac-mask property, set to default value.
[ 9.964208] hns_dsaf HISI00B2:00: no mc-mac-mask property, set to default value.
[ 10.206824] hns_dsaf HISI00B2:00: no mc-mac-mask property, set to default value.
[ 10.228666] hns_dsaf HISI00B2:00: no mc-mac-mask property, set to default value.
[ 10.522229] hns-nic HISI00C2:00 enahisic2i0: renamed from eth0
[ 10.573215] hns-nic HISI00C2:01 enahisic2i1: renamed from eth0
[ 10.629089] hns-nic HISI00C2:02 enahisic2i2: renamed from eth0
[ 10.704777] hns-nic HISI00C2:03 enahisic2i3: renamed from eth1
[ 51.988203] hns-nic HISI00C2:01 enahisic2i1: link up
[ 196.115843] hns-nic HISI00C2:01 enahisic2i1: link
ubuntu@d05-3:~$ dmesg --level=err
[ 1.675454] Couldn't get size: 0x800000000000000e
[ 1.675455] MODSIGN: Couldn't get UEFI db list
[ 1.675465] Couldn't get size: 0x800000000000000e
[ 1.675477] Couldn't get size: 0x800000000000000e
[ 10.195043] cma: cma_alloc: alloc failed, req-size: 32 pages, ret: -12
[ 10.202314] cma: cma_alloc: alloc failed, req-size: 32 pages, ret: -12
[ 10.212589] cma: cma_alloc: alloc failed, req-size: 32 pages, ret: -12
[ 10.230484] cma: cma_alloc: alloc failed, req-size: 32 pages, ret: -12
[ 10.244378] cma: cma_alloc: alloc failed, req-size: 32 pages, ret: -12
[ 10.263688] cma: cma_alloc: alloc failed, req-size: 32 pages, ret: -12
[ 10.270394] cma: cma_alloc: alloc failed, req-size: 32 pages, ret: -12
[ 10.277101] cma: cma_alloc: alloc failed, req-size: 32 pages, ret: -12
[ 26.047067] sd 3:0:0:0: [sdc] No Caching mode page found
[ 26.047069] sd 3:0:0:0: [sdc] Assuming drive cache: write through
[ 41.137188] ipmi_si dmi-ipmi-si.0: Interface detection failed

= Cosmic =
ubuntu@d05-3:~$ cat /proc/version
Linux version 4.18.0-26-generic (buildd@bos02-arm64-042) (gcc version 8.3.0 (Ubuntu 8.3.0-6ubuntu1~18.10.1)) #27-Ubuntu SMP Tue Jul 2 15:36:34 UTC 2019
ubuntu@d05-3:~$ dmesg | grep hns
[ 8.820811] hns_dsaf HISI00B2:00: no mc-mac-mask property, set to default value.
[ 9.501482] hns_dsaf HISI00B2:00: no mc-mac-mask property, set to default value.
[ 9.790848] hns_dsaf HISI00B2:00: no mc-mac-mask property, set to default value.
[ 9.820309] hns_dsaf HISI00B2:00: no mc-mac-mask property, set to default value.
[ 10.228363] hns-nic HISI00C2:00 enahisic2i0: renamed from eth0
[ 10.323629] hns-nic HISI00C2:01 enahisic2i1: renamed from eth0
[ 10.379501] hns-nic HISI00C2:02 enahisic2i2: renamed from eth0
[ 10.447618] hns-nic HISI00C2:03 enahisic2i3: renamed from eth0
[ 43.274888] hns-nic HISI00C2:01 enahisic2i1: link up
ubuntu@d05-3:~$ dmesg --level=err
[ 25.609748] sd 3:0:0:0: [sdc] No Caching mode page found
[ 25.609750] sd 3:0:0:0: [sdc] Assuming drive cache: write through
[ 37.140540] ipmi_si dmi-ipmi-si.0: Interface detection failed

= Bionic =
ubuntu@d05-3:~$ cat /proc/version
Linux version 4.15.0-55-generic (buildd@bo...

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
...

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!