Confirmed that on a working system, just updating to the new kernel breaks it.
So that SRU kernel is definitely broken and should not be shipped.
[ 8.996651] BUG: unable to handle kernel NULL pointer dereference at
00000000e12c1a77
[ 8.998738] IP: [<00000000b372dc06>] fuse_do_setattr+0x52/0x640
[ 9.000546] PGD 80000002717c7067 PUD 270e5d067 PMD 0
[ 9.001915] Oops: 0000 [#1] SMP
[ 9.003041] Modules linked in: binfmt_misc veth ip6table_filter ip6_tables
xt_CHECKSUM iptable_mangle xt_comment xt_tcpudp iptable_filter ip_tables
x_tables kvm_intel kvm irqbypass bridge stp llc joydev input_leds serio_raw
lpc_ich 9pnet_virtio 9pnet virtio_rng virtio_input shpchp 8250_fintek mac_hid
ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr 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
multipath linear crct10dif_pclmul crc32_pclmul ghash_clmulni_intel virtio_gpu
ttm aesni_intel drm_kms_helper aes_x86_64 lrw syscopyarea gf128mul glue_helper
ablk_helper sysfillrect ahci sysimgblt cryptd fb_sys_fops psmouse drm libahci
virtio_scsi
[ 9.019982] CPU: 2 PID: 1929 Comm: mount Not tainted 4.4.0-207-generic
#239-Ubuntu
[ 9.021887] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009)/LXD, BIOS
0.0.0 02/06/2015
[ 9.023893] task: 00000000b85f1580 ti: 0000000046f8cfc7 task.ti:
0000000046f8cfc7
[ 9.025775] RIP: 0010:[<ffffffff813307b2>] [<00000000b372dc06>]
fuse_do_setattr+0x52/0x640
[ 9.027974] RSP: 0018:ffff880272eb7c20 EFLAGS: 00010246
[ 9.029627] RAX: 0000000000000000 RBX: ffff880272eb7e28 RCX: 000000000000000e
[ 9.031507] RDX: 0000000000000000 RSI: ffff880272eb7e28 RDI: ffff880272eb7cf8
[ 9.033447] RBP: ffff880272eb7d98 R08: 0000000000019580 R09: ffffffff8122c764
[ 9.035159] R10: ffffea0009cd8400 R11: ffff88027203c300 R12: 0000000000000000
[ 9.037004] R13: ffff880272eb7e28 R14: ffff88027203c470 R15: ffff88027203c300
[ 9.038737] FS: 00007f01e82d9840(0000) GS:ffff88027fd00000(0000)
knlGS:0000000000000000
[ 9.040811] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9.042470] CR2: 0000000000000458 CR3: 0000000273654000 CR4: 0000000000160670
[ 9.044488] Stack:
[ 9.045578] ffffffff81227c54 ffff880272eb7c84 0000000000000001
000000028186639d
[ 9.047599] 5318e6f4d6b61d94 ffff880272eb7d70 ffff880272eb7d80
ffff880272eb7d70
[ 9.049606] 0000000000000000 ffff880272eb7cf8 ffff880272eb7cf0
ffff880270e50320
[ 9.051576] Call Trace:
[ 9.052746] [<000000004f4fb5e7>] ? lookup_fast+0x184/0x340
[ 9.054366] [<000000004f4fb5e7>] ? lookup_fast+0x184/0x340
[ 9.055970] [<00000000c60c3075>] ? unlazy_walk+0xc1/0x150
[ 9.057542] [<00000000d5cd4375>] ? terminate_walk+0x66/0xd0
[ 9.059307] [<0000000051dc2989>] ? putname+0x54/0x60
[ 9.060934] [<000000005d276838>] fuse_setattr+0xa5/0xf0
[ 9.062454] [<00000000e045b853>] notify_change+0x2dc/0x430
[ 9.064177] [<000000008ae20288>] utimes_common+0xd1/0x1b0
[ 9.065694] [<000000003571704c>] do_utimes+0x125/0x160
[ 9.067102] [<00000000e85b7804>] SyS_utimensat+0x67/0xa0
[ 9.068721] [<00000000fb35cea1>] entry_SYSCALL_64_fastpath+0x22/0xd0
[ 9.070383] Code: 4c 8b 77 30 65 48 8b 04 25 28 00 00 00 48 89 84 24 48 01
00 00 31 c0 48 8d bc 24 d8 00 00 00 c7 44 24 14 00 00 00 00 49 8b 46 28 <4c> 8b
b8 58 04 00 00 31 c0 f3 48 ab 41 0f b6 9f 2c 01 00 00 c0
[ 9.076396] RIP [<00000000b372dc06>] fuse_do_setattr+0x52/0x640
[ 9.078006] RSP <ffff880272eb7c20>
[ 9.079316] CR2: 0000000000000458
[ 9.080677] ---[ end trace 05c28a02c4628343 ]---
** Changed in: linux (Ubuntu)
Status: New => Triaged
** Changed in: linux (Ubuntu)
Importance: Undecided => Critical
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https://bugs.launchpad.net/bugs/1921969
Title:
lxd 2.0.11-0ubuntu1~16.04.4 ADT test failure with linux 4.4.0-207.239
Status in linux package in Ubuntu:
Triaged
Bug description:
Testing failed on:
amd64:
https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-xenial/xenial/amd64/l/lxd/20210331_002001_322ce@/log.gz
arm64:
https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-xenial/xenial/arm64/l/lxd/20210330_023432_11c32@/log.gz
i386:
https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-xenial/xenial/i386/l/lxd/20210331_001905_1aecd@/log.gz
ppc64el:
https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-xenial/xenial/ppc64el/l/lxd/20210331_001557_b82c6@/log.gz
s390x:
https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-xenial/xenial/s390x/l/lxd/20210331_001215_7b9ae@/log.gz
Starting c1
action=start creation date=2021-03-30T02:42:13+0000 ephemeral=false lvl=eror
msg="Failed starting container" name=c1 stateful=false
t=2021-03-30T02:42:14+0000
error: Error calling 'lxd forkstart c1
/tmp/autopkgtest.mceqas/build.1QA/src/test/tmp.MBH/dyt/containers
/tmp/autopkgtest.mceqas/build.1QA/src/test/tmp.MBH/dyt/logs/c1/lxc.conf':
err='Failed to run: /usr/bin/lxd forkstart c1
/tmp/autopkgtest.mceqas/build.1QA/src/test/tmp.MBH/dyt/containers
/tmp/autopkgtest.mceqas/build.1QA/src/test/tmp.MBH/dyt/logs/c1/lxc.conf: '
lxc 20210330024214.649 ERROR lxc_conf - conf.c:run_buffer:286 - Script
exited with status 137.
lxc 20210330024214.649 ERROR lxc_conf - conf.c:lxc_setup:3356 - failed to
run mount hooks for container 'c1'.
lxc 20210330024214.649 ERROR lxc_start - start.c:do_start:1248 - Failed to
setup container "c1".
lxc 20210330024214.649 ERROR lxc_sync - sync.c:__sync_wait:59 - An error
occurred in another process (expected sequence number 5)
lxc 20210330024214.662 ERROR lxc_start - start.c:__lxc_start:1802 - Failed
to spawn container "c1".
lxc 20210330024214.663 ERROR lxc_container -
lxccontainer.c:wait_on_daemonized_start:804 - Received container state
"ABORTING" instead of "RUNNING"
Try `lxc info --show-log lxd2:c1` for more info
==> Cleaning up
==> Killing LXD at /tmp/autopkgtest.mceqas/build.1QA/src/test/tmp.MBH/zOt
==> Deleting all containers
==> Deleting all images
==> Deleting all profiles
Profile default deleted
Profile docker deleted
==> Checking for locked DB tables
==> Checking for leftover files
==> Checking for leftover DB entries
==> Tearing down directory backend in
/tmp/autopkgtest.mceqas/build.1QA/src/test/tmp.MBH/zOt
==> Killing LXD at /tmp/autopkgtest.mceqas/build.1QA/src/test/tmp.MBH/dyt
==> Deleting all containers
==> Deleting all images
==> Deleting all profiles
Profile default deleted
Profile docker deleted
==> Checking for locked DB tables
==> Checking for leftover files
==> Checking for leftover DB entries
==> Tearing down directory backend in
/tmp/autopkgtest.mceqas/build.1QA/src/test/tmp.MBH/dyt
==> TEST DONE: remote usage
==> Test result: failure
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