ubuntu-kernel-tests

zram03 in kernel_misc from ubuntu_ltp failed with Failed to close FILE on E-oracle / B-5.4-oracle / F-5.4 / F-5.8 / F-5.11

Bug #1887742 reported by Po-Hsu Lin
12
This bug affects 2 people
Affects Status Importance Assigned to Milestone
ubuntu-kernel-tests
New
Undecided
Unassigned

Bug Description

Issue found on E-Oracle 5.3.0-1030.32

Only spotted on instance VM.Standard2.1 passed on VM.Standard2.16

 tag=zram03 stime=1594710365 dur=0 exit=exited stat=2 core=no cu=0 cs=0
 startup='Tue Jul 14 07:06:05 2020'
 zram03 0 TINFO : create a zram device with 536870912 bytes in size.
 zram03 1 TBROK : safe_file_ops.c:299: Failed to close FILE '/sys/block/zram0/disksize' at zram03.c:87: errno=EBUSY(16): Device or resource busy
 zram03 2 TBROK : safe_file_ops.c:299: Remaining cases broken

Might be caused by the echo error in the previous zram02 test:
 tag=zram02 stime=1594710360 dur=0 exit=exited stat=0 core=no cu=4 cs=19
 startup='Tue Jul 14 07:06:00 2020'
 zram02 1 TINFO: timeout per run is 0h 5m 0s
 zram02 1 TINFO: create '1' zram device(s)
 zram02 1 TPASS: test succeeded
 zram02 1 TCONF: The device attribute max_comp_streams was introduced in kernel 3.15 and deprecated in 4.7
 zram02 2 TINFO: set disk size to zram device(s)
 zram02 2 TINFO: /sys/block/zram0/disksize = '107374182400' (1/1)
 zram02 2 TPASS: test succeeded
 zram02 3 TINFO: set memory limit to zram device(s)
 zram02 3 TINFO: /sys/block/zram0/mem_limit = '1M' (1/1)
 zram02 3 TPASS: test succeeded
 zram02 4 TINFO: make swap with zram device(s)
 Setting up swapspace version 1, size = 100 GiB (107374178304 bytes)
 no label, UUID=75d269f2-80d0-4ca0-b327-9b4553944447
 zram02 4 TINFO: done with /dev/zram0
 zram02 4 TPASS: making zram swap succeeded
 zram02 5 TPASS: swapoff completed
 /opt/ltp/testcases/bin/zram02.sh: 27: echo: echo: I/O error

 Summary:
 passed 5
 failed 0
 skipped 1
 warnings 0

Po-Hsu Lin (cypressyew)
tags: added: 5.3 eoan kqa-blocker oracle sru-20200629 ubuntu-ltp
Revision history for this message
Po-Hsu Lin (cypressyew) wrote : Re: zram03 in kernel_misc from ubuntu_ltp failed with Failed to close FILE on E-oracle / B-5.4-oracle

Failed on VM.DenseIO2.8 passed with VM.Standard2.1

 5.4.0-1021.21~18.04.1 B-oracle-5.4

tags: added: 5.4 sru-20200720
summary: zram03 in kernel_misc from ubuntu_ltp failed with Failed to close FILE
- on E-oracle
+ on E-oracle / B-5.4-oracle
Revision history for this message
Po-Hsu Lin (cypressyew) wrote :

Spotted on VM.DenseIO2.8 with 4.15.0-1051.55-oracle
(passed on VM.Standard2.1)

tags: added: 4.15 bionic
tags: added: sru-20200810
Revision history for this message
Po-Hsu Lin (cypressyew) wrote :

Spotted on F-5.4 amd64 generic / lowlatency on node amaura
5.4.0-44.48

tags: added: focal
summary: zram03 in kernel_misc from ubuntu_ltp failed with Failed to close FILE
- on E-oracle / B-5.4-oracle
+ on E-oracle / B-5.4-oracle / F-5.4
Revision history for this message
Kelsey Steele (kelsey-steele) wrote : Re: zram03 in kernel_misc from ubuntu_ltp failed with Failed to close FILE on E-oracle / B-5.4-oracle / F-5.4

Spotted on Bionic aws : 4.15.0-1084.88 : amd64

tags: added: sru-20200921
Revision history for this message
Po-Hsu Lin (cypressyew) wrote :

Still visible on 5.4.0-1030.32~18.04.1 - oracle
VM.DenseIO2.8 only

tags: added: sru-20201109
Revision history for this message
Kelsey Steele (kelsey-steele) wrote :

Found on Groovy/linux 5.8.0-31.33

tags: added: 5.8 amd64 groovy
Revision history for this message
Kelsey Steele (kelsey-steele) wrote :

Found on bionic/ibm-gt 4.15.0-1084.93

tags: added: ibm-gt sru-20210104
Kelsey Steele (kelsey-steele)
tags: added: hwe-5.8
Kelsey Steele (kelsey-steele)
tags: added: sru-20210222
Kelsey Steele (kelsey-steele)
tags: added: sru-20210315
Kelsey Steele (kelsey-steele)
tags: added: hwe
Revision history for this message
Marcelo Cerri (mhcerri) wrote :

Also seen in bionic linux-fips 4.15.0-1057.65 for sru-20210315

Kelsey Steele (kelsey-steele)
tags: added: sru-20210412
Kelsey Steele (kelsey-steele)
tags: removed: ibm-gt
Kelsey Steele (kelsey-steele)
tags: added: fips
Revision history for this message
Kleber Sacilotto de Souza (kleber-souza) wrote :

Seen with bionic/linux 4.15.0-144.148, SRU Cycle 2021.05.10.

tags: added: sru-20210510
Revision history for this message
Po-Hsu Lin (cypressyew) wrote :

Found on 5.11.0-1005.5 - intel with node kili / spitfire.

tags: added: sru-20210531
summary: zram03 in kernel_misc from ubuntu_ltp failed with Failed to close FILE
- on E-oracle / B-5.4-oracle / F-5.4
+ on E-oracle / B-5.4-oracle / F-5.4 / F-5.11
tags: added: 5.11
Kelsey Steele (kelsey-steele)
tags: added: hirsute
Revision history for this message
Krzysztof Kozlowski (krzk) wrote : Re: zram03 in kernel_misc from ubuntu_ltp failed with Failed to close FILE on E-oracle / B-5.4-oracle / F-5.4 / F-5.11

Found on focal/oracle 5.8.0-1032.33~20.04.1 (instance VM.DenseIO2.8).
Looks like failure of cleanup from zram02 (previous) test:

zram02 5 TINFO: done with /dev/zram0
zram02 5 TPASS: making zram swap succeeded
zram02 6 TPASS: swapoff completed
/opt/ltp/testcases/bin/zram02.sh: 29: echo: echo: I/O error
...
zram03 0 TINFO : create a zram device with 536870912 bytes in size.
zram03 1 TBROK : zram03.c:87: Failed to close FILE '/sys/block/zram0/disksize': errno=EBUSY(16): Device or resource busy
zram03 2 TBROK : zram03.c:87: Remaining cases broken

summary: zram03 in kernel_misc from ubuntu_ltp failed with Failed to close FILE
- on E-oracle / B-5.4-oracle / F-5.4 / F-5.11
+ on E-oracle / B-5.4-oracle / F-5.4 / F-5.8 / F-5.11
Revision history for this message
Krzysztof Kozlowski (krzk) wrote (last edit ):

Found on groovy/oracle 5.8.0-1032.33 (only instance VM.DenseIO2.8, passed on VM.Standard2.1).

Krzysztof Kozlowski (krzk)
Changed in ubuntu-kernel-tests:
assignee: nobody → Krzysztof Kozlowski (krzk)
Revision history for this message
Krzysztof Kozlowski (krzk) wrote :

Found on hirsute/gcp 5.11.0-1009.10-gcp (only few instances, e.g.: n1-standard-8, n1-standard-64, n1-highmem-8).

tags: added: gcp
Revision history for this message
Krzysztof Kozlowski (krzk) wrote (last edit ):

Tried to reproduce it manually with autotest on Oracle VM.DenseIO2.8, Focal v5.8, but everything worked fine. However when scheduled a test build it failed there as usual on Oracle VM.DenseIO2.8:
16:07:14 DEBUG| [stdout] /opt/ltp/testcases/bin/zram02.sh: 29: echo: echo: I/O error
...
16:07:14 DEBUG| [stdout] zram03 1 TBROK : zram03.c:87: Failed to close FILE '/sys/block/zram0/disksize': errno=EBUSY(16): Device or resource busy

Revision history for this message
Krzysztof Kozlowski (krzk) wrote :

Found on groovy/aws 5.8.0-1036.38-aws (only instance x1e.xlarge).

Kelsey Steele (kelsey-steele)
tags: added: impish
Kelsey Steele (kelsey-steele)
tags: added: sru-20210621
Revision history for this message
Krzysztof Kozlowski (krzk) wrote :

Fouund on groovy 5.8.0-61.68 metal-dryden.ppc64el

Kelsey Steele (kelsey-steele)
tags: added: sru-20210719
Krzysztof Kozlowski (krzk)
tags: added: hinted
Revision history for this message
Stefan Bader (smb) wrote :

Seen on arm64, generic-64k on helo-kernel for sru-20210906

tags: added: sru-20210906
Revision history for this message
Kleber Sacilotto de Souza (kleber-souza) wrote :

Found with focal/linux 5.4.0-85.95 on node dryden ppc64el.

Revision history for this message
Ian May (ian-may) wrote :

Found with bionic/linux-oracle-5.4: 5.4.0-1056.60~18.04.1 n1-highcpu-4

Kleber Sacilotto de Souza (kleber-souza)
tags: added: sru-20211129
Revision history for this message
Thadeu Lima de Souza Cascardo (cascardo) wrote :

On focal/linux-gcp 5.4.0-1093, instance type n2d-standard-2, saw:

   18425 tst_test.c:1526: TINFO: Timeout per run is 0h 00m 30s
      18426 zram03.c:181: TINFO: zram module already loaded, kernel supports zram-control interface
      18427 zram03.c:40: TINFO: create a zram device with 536870912 bytes in size
      18428 zram03.c:50: TINFO: map this zram device into memory
      18429 zram03.c:54: TINFO: write all the memory
      18430 zram03.c:105: TINFO: /sys/block/zram1
      18431 zram03.c:108: TINFO: /sys/block/zram1/initstate is 1
      18432 zram03.c:105: TINFO: /sys/block/zram1
      18433 zram03.c:108: TINFO: /sys/block/zram1/disksize is 536870912
      18434 zram03.c:131: TINFO: orig_data_size from /sys/block/zram1/mm_stat is 536870912
      18435 zram03.c:132: TINFO: compr_data_size from /sys/block/zram1/mm_stat is 46
      18436 zram03.c:133: TINFO: mem_used_total from /sys/block/zram1/mm_stat is 4096
      18437 zram03.c:134: TINFO: zero/same_pages from /sys/block/zram1/mm_stat is 131071
      18438 zram03.c:118: TINFO: num_reads from /sys/block/zram1/stat is 131072
      18439 zram03.c:119: TINFO: num_writes from /sys/block/zram1/stat is 131072
      18440 zram03.c:68: TINFO: verify contents from device
      18441 zram03.c:85: TPASS: data read from zram device is consistent with those are written
      18442 zram03.c:96: TINFO: Reset zram
      18443 zram03.c:98: TBROK: Failed to close FILE '/sys/block/zram1/reset': EBUSY (16)
      18444 zram03.c:230: TWARN: Failed to close FILE '/sys/class/zram-control/hot_remove': EBUSY (16)

This may be caused by fclose calling write, and the reset_store and zram_remove may return -EBUSY in case there are still openers of the block device. This could be caused by udev looking at the block device, for example.

Po-Hsu Lin (cypressyew)
tags: added: gke sru-20230227
Po-Hsu Lin (cypressyew)
Changed in ubuntu-kernel-tests:
assignee: Krzysztof Kozlowski (krzk) → nobody
tags: added: ubuntu-ltp-kernel-misc
removed: ubuntu-ltp
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