Comment 3 for bug 1822247

Similar failure could be found on X-4.15, AMD64 (onibi) / i386 (pepe)

* Command:
/home/ubuntu/autotest/client/tests/ubuntu_nbd_smoke_test/ubuntu_nbd_smoke
_test.sh
Exit status: 1
Duration: 8.1468269825

stdout:
creating backing nbd image /tmp/nbd_image.img

--------------------------------------------------------------------------------
Image path: /tmp/nbd_image.img
Mount point: /mnt/nbd-test-18217
Date: Fri Mar 29 07:44:02 UTC 2019
Host: onibi
Kernel: 4.15.0-47-generic #50~16.04.1-Ubuntu SMP Fri Mar 15 16:06:21 UTC 2019
Machine: onibi x86_64 x86_64
CPUs online: 4
CPUs total: 4
Page size: 4096
Pages avail: 1340920
Pages total: 2038430
Free space:
Filesystem Size Used Avail Use% Mounted on
udev 3.9G 0 3.9G 0% /dev
tmpfs 797M 17M 780M 3% /run
/dev/sda1 917G 9.1G 861G 2% /
tmpfs 3.9G 4.0K 3.9G 1% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup
tmpfs 797M 0 797M 0% /run/user/1000
tmpfs 100K 0 100K 0% /var/lib/lxd/shmounts
tmpfs 100K 0 100K 0% /var/lib/lxd/devlxd
cgmfs 100K 0 100K 0% /run/cgmanager/fs
--------------------------------------------------------------------------------

NBD device /dev/nbd0 created
found nbd export
NBD exports found:
test
starting client with NBD device /dev/nbd0
Negotiation: ..size = 128MB
creating ext4 on /dev/nbd0
mkfs on /dev/nbd0 succeeded after 0 attempt(s)
checking ext4 on /dev/nbd0
fsck from util-linux 2.27.1
/dev/nbd0: clean, 11/32768 files, 9787/131072 blocks

mount:
/dev/nbd0 on /mnt/nbd-test-18217 type ext4 (rw,relatime,data=ordered)
mounted on /dev/nbd0

free:
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/nbd0 122835 1550 112111 2% /mnt/nbd-test-18217

creating large file /mnt/nbd-test-18217/largefile
-rw-r--r-- 1 root root 100M Mar 29 07:44 /mnt/nbd-test-18217/largefile

free:
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/nbd0 122835 103951 9710 92% /mnt/nbd-test-18217

removing file /mnt/nbd-test-18217/largefile
unmounting /mnt/nbd-test-18217
stopping client
disconnect, sock, done
Found kernel warning, IO error and/or call trace
echo
[ 4088.409864] creating backing nbd image /tmp/nbd_image.img
[ 4090.412514] NBD device /dev/nbd0 created
[ 4090.464858] found nbd export
[ 4091.510701] starting client with NBD device /dev/nbd0
[ 4091.512739] creating ext4 on /dev/nbd0
[ 4091.799747] mkfs on /dev/nbd0 succeeded after 0 attempt(s)
[ 4092.155113] checking ext4 on /dev/nbd0
[ 4092.232523] EXT4-fs (nbd0): mounted filesystem with ordered data mode. Opts: (null)
[ 4092.237839] mounted on /dev/nbd0
[ 4092.239111] creating large file /mnt/nbd-test-18217/largefile
[ 4093.429863] removing file /mnt/nbd-test-18217/largefile
[ 4093.685500] unmounting /mnt/nbd-test-18217
[ 4094.741235] stopping client
[ 4094.741850] block nbd0: NBD_DISCONNECT
[ 4094.741892] block nbd0: shutting down sockets
[ 4094.741988] nbd0: detected capacity change from 0 to 134217728
[ 4094.742025] print_req_error: 1 callbacks suppressed
[ 4094.742026] print_req_error: I/O error, dev nbd0, sector 0
[ 4094.742053] Buffer I/O error on dev nbd0, logical block 0, async page read
[ 4094.742091] print_req_error: I/O error, dev nbd0, sector 0
[ 4094.742113] Buffer I/O error on dev nbd0, logical block 0, async page read
[ 4094.742147] print_req_error: I/O error, dev nbd0, sector 0
[ 4094.742169] Buffer I/O error on dev nbd0, logical block 0, async page read
[ 4094.742197] ldm_validate_partition_table(): Disk read failed.
[ 4094.742204] print_req_error: I/O error, dev nbd0, sector 0
[ 4094.742225] Buffer I/O error on dev nbd0, logical block 0, async page read
[ 4094.742288] print_req_error: I/O error, dev nbd0, sector 0
[ 4094.742313] Buffer I/O error on dev nbd0, logical block 0, async page read
[ 4094.742354] print_req_error: I/O error, dev nbd0, sector 0
[ 4094.742378] Buffer I/O error on dev nbd0, logical block 0, async page read
[ 4094.742419] print_req_error: I/O error, dev nbd0, sector 0
[ 4094.742440] Buffer I/O error on dev nbd0, logical block 0, async page read
[ 4094.742468] Dev nbd0: unable to read RDB block 0
[ 4094.742492] print_req_error: I/O error, dev nbd0, sector 0
[ 4094.742513] Buffer I/O error on dev nbd0, logical block 0, async page read
[ 4094.742599] print_req_error: I/O error, dev nbd0, sector 24
[ 4094.742625] Buffer I/O error on dev nbd0, logical block 3, async page read
[ 4094.742723] print_req_error: I/O error, dev nbd0, sector 0
[ 4094.742749] Buffer I/O error on dev nbd0, logical block 0, async page read
[ 4094.742918] nbd0: unable to read partition table
[ 4095.465090] Found kernel warning, IO error and/or call trace
[ 4095.465145] echo
killing server
================================================================================

Completed

Kernel issues:

Found kernel warning, IO error and/or call trace:

TEST:

[ 4088.409864] creating backing nbd image /tmp/nbd_image.img
[ 4090.412514] NBD device /dev/nbd0 created
[ 4090.464858] found nbd export
[ 4091.510701] starting client with NBD device /dev/nbd0
[ 4091.512739] creating ext4 on /dev/nbd0
[ 4091.799747] mkfs on /dev/nbd0 succeeded after 0 attempt(s)
[ 4092.155113] checking ext4 on /dev/nbd0
[ 4092.232523] EXT4-fs (nbd0): mounted filesystem with ordered data mode. Opts: (null)
[ 4092.237839] mounted on /dev/nbd0
[ 4092.239111] creating large file /mnt/nbd-test-18217/largefile
[ 4093.429863] removing file /mnt/nbd-test-18217/largefile
[ 4093.685500] unmounting /mnt/nbd-test-18217
[ 4094.741235] stopping client
[ 4094.741850] block nbd0: NBD_DISCONNECT
[ 4094.741892] block nbd0: shutting down sockets
[ 4094.741988] nbd0: detected capacity change from 0 to 134217728
[ 4094.742025] print_req_error: 1 callbacks suppressed
[ 4094.742026] print_req_error: I/O error, dev nbd0, sector 0
[ 4094.742053] Buffer I/O error on dev nbd0, logical block 0, async page read
[ 4094.742091] print_req_error: I/O error, dev nbd0, sector 0
[ 4094.742113] Buffer I/O error on dev nbd0, logical block 0, async page read
[ 4094.742147] print_req_error: I/O error, dev nbd0, sector 0
[ 4094.742169] Buffer I/O error on dev nbd0, logical block 0, async page read
[ 4094.742197] ldm_validate_partition_table(): Disk read failed.
[ 4094.742204] print_req_error: I/O error, dev nbd0, sector 0
[ 4094.742225] Buffer I/O error on dev nbd0, logical block 0, async page read
[ 4094.742288] print_req_error: I/O error, dev nbd0, sector 0
[ 4094.742313] Buffer I/O error on dev nbd0, logical block 0, async page read
[ 4094.742354] print_req_error: I/O error, dev nbd0, sector 0
[ 4094.742378] Buffer I/O error on dev nbd0, logical block 0, async page read
[ 4094.742419] print_req_error: I/O error, dev nbd0, sector 0
[ 4094.742440] Buffer I/O error on dev nbd0, logical block 0, async page read
[ 4094.742468] Dev nbd0: unable to read RDB block 0
[ 4094.742492] print_req_error: I/O error, dev nbd0, sector 0
[ 4094.742513] Buffer I/O error on dev nbd0, logical block 0, async page read
[ 4094.742599] print_req_error: I/O error, dev nbd0, sector 24
[ 4094.742625] Buffer I/O error on dev nbd0, logical block 3, async page read
[ 4094.742723] print_req_error: I/O error, dev nbd0, sector 0
[ 4094.742749] Buffer I/O error on dev nbd0, logical block 0, async page read
[ 4094.742918] nbd0: unable to read partition table
[ 4095.465090] Found kernel warning, IO error and/or call trace
[ 4095.465145] echo
stderr:
bs=1024, sz=134217728 bytes
timeout=30
e2fsck 1.42.13 (17-May-2015)