Re: [bug report] most of blktests nvme/ failed on the latest linux tree

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On 6/27/23 15:37, Chaitanya Kulkarni wrote:
> On 6/27/23 14:21, Sagi Grimberg wrote:
>>> Hello
>>>
>>> I found this failure on the latest linux tree, and it cannot be
>>> reproduced on v6.4,
>>> it should be one regression recently merged to linux tree after v6.4.
>>> I check the commit recently merged after v6.4, and found below commit
>>> touched the related code, not sure if it was introduced by this
>>> commit.
>>>
>>> commit 959ffef13bac792e4e2e3321d6e2bd2b00c0f5f9
>>> Author: Chaitanya Kulkarni <kch@xxxxxxxxxx>
>>> Date:   Thu Jun 1 23:47:42 2023 -0700
>>>
>>>       nvme-fabrics: open code __nvmf_host_find()
>> That just moved code, no functional change,
>> most likely the below was the offender:
>> ae8bd606e09b ("nvme-fabrics: prevent overriding of existing host")
> For nvme-6.5 blktests are passing with nvme_trtype "loop" and "tcp"
> see [1] with following HEAD :-
>
> commit 99160af413b4ff1c3b4741e8a7583f8e7197f201 (origin/nvme-6.5)
> Author: Sagi Grimberg <sagi@xxxxxxxxxxx>
> Date:   Tue Jun 20 16:07:36 2023 +0300
>
>       nvme-mpath: fix I/O failure with EAGAIN when failing over I/O
>
> Also, didn't find the following error messsage in dmesg.
> blktests (master) # dmesg | grep "found same hostid"
> blktests (master) #
>
> confused exactly how blktests are passing on nvme-6.5 branch ?
>
> I'll try linux v6.4 next and update you soon ..
>
> -ck
>
>

I ran the blktests on linux-block/for-next with following HEAD:-
commit 3261ea42710e9665c9151006049411bd23b5411f (origin/for-next)
Merge: ad73f31646e0 6d85ebf95c44
Author: Jens Axboe <axboe@xxxxxxxxx>
Date:   Mon Jun 26 09:53:41 2023 -0600

     Merge branch 'for-6.5/block-late' into for-next

     * for-6.5/block-late:
       blk-sysfs: add a new attr_group for blk_mq
       blk-iocost: move wbt_enable/disable_default() out of spinlock
       blk-wbt: cleanup rwb_enabled() and wbt_disabled()
       blk-wbt: remove dead code to handle wbt enable/disable with io 
inflight
       blk-wbt: don't create wbt sysfs entry if CONFIG_BLK_WBT is disabled



It's passing, can you pleas share :-

1. git repo link
2. git repo HEAD
3. blktests head

I'll continue to debug the problem  ...

-ck

[1]
linux-block (for-next) # git log -2
commit 0be6b9ec7bd1aa1b5629ebf2701fa3aa7237d313 (HEAD -> for-next)
Merge: 7bbb53e97bb3 3261ea42710e
Author: Chaitanya Kulkarni <kch@xxxxxxxxxx>
Date:   Tue Jun 27 15:40:14 2023 -0700

     Merge branch 'for-next' of git://git.kernel.dk/linux-block into 
for-next

commit 3261ea42710e9665c9151006049411bd23b5411f (origin/for-next)
Merge: ad73f31646e0 6d85ebf95c44
Author: Jens Axboe <axboe@xxxxxxxxx>
Date:   Mon Jun 26 09:53:41 2023 -0600

     Merge branch 'for-6.5/block-late' into for-next

     * for-6.5/block-late:
       blk-sysfs: add a new attr_group for blk_mq
       blk-iocost: move wbt_enable/disable_default() out of spinlock
       blk-wbt: cleanup rwb_enabled() and wbt_disabled()
       blk-wbt: remove dead code to handle wbt enable/disable with io 
inflight
       blk-wbt: don't create wbt sysfs entry if CONFIG_BLK_WBT is disabled
linux-block (for-next) # cdblktests
blktests (master) # ./test-nvme.sh
################nvme_trtype=loop############
nvme/002 (create many subsystems and test discovery) [passed]
     runtime    ...  19.523s
nvme/003 (test if we're sending keep-alives to a discovery controller) 
[passed]
     runtime  10.095s  ...  10.082s
nvme/004 (test nvme and nvmet UUID NS descriptors) [passed]
     runtime  1.458s  ...  1.456s
nvme/005 (reset local loopback target) [passed]
     runtime  1.199s  ...  1.808s
nvme/006 (create an NVMeOF target with a block device-backed ns) [passed]
     runtime  0.059s  ...  0.066s
nvme/007 (create an NVMeOF target with a file-backed ns) [passed]
     runtime  0.044s  ...  0.033s
nvme/008 (create an NVMeOF host with a block device-backed ns) [passed]
     runtime  1.148s  ...  1.476s
nvme/009 (create an NVMeOF host with a file-backed ns) [passed]
     runtime  1.139s  ...  1.435s
nvme/010 (run data verification fio job on NVMeOF block device-backed 
ns) [passed]
     runtime  113.605s  ...  113.720s
nvme/011 (run data verification fio job on NVMeOF file-backed ns) [passed]
     runtime  83.124s  ...  80.072s
nvme/012 (run mkfs and data verification fio job on NVMeOF block 
device-backed ns) [passed]
     runtime  86.374s  ...  93.449s
nvme/013 (run mkfs and data verification fio job on NVMeOF file-backed 
ns) [passed]
     runtime  78.565s  ...  64.751s
nvme/014 (flush a NVMeOF block device-backed ns) [passed]
     runtime  6.617s  ...  7.489s
nvme/015 (unit test for NVMe flush for file backed ns) [passed]
     runtime  5.939s  ...  6.214s
nvme/016 (create/delete many NVMeOF block device-backed ns and test 
discovery) [passed]
     runtime    ...  12.590s
nvme/017 (create/delete many file-ns and test discovery) [passed]
     runtime    ...  12.932s
nvme/018 (unit test NVMe-oF out of range access on a file backend) [passed]
     runtime  1.120s  ...  1.422s
nvme/019 (test NVMe DSM Discard command on NVMeOF block-device ns) [passed]
     runtime  1.148s  ...  1.437s
nvme/020 (test NVMe DSM Discard command on NVMeOF file-backed ns) [passed]
     runtime  1.124s  ...  1.437s
nvme/021 (test NVMe list command on NVMeOF file-backed ns) [passed]
     runtime  1.127s  ...  1.414s
nvme/022 (test NVMe reset command on NVMeOF file-backed ns) [passed]
     runtime  1.164s  ...  1.767s
nvme/023 (test NVMe smart-log command on NVMeOF block-device ns) [passed]
     runtime  1.151s  ...  1.442s
nvme/024 (test NVMe smart-log command on NVMeOF file-backed ns) [passed]
     runtime  1.112s  ...  1.440s
nvme/025 (test NVMe effects-log command on NVMeOF file-backed ns) [passed]
     runtime  1.121s  ...  1.420s
nvme/026 (test NVMe ns-descs command on NVMeOF file-backed ns) [passed]
     runtime  1.121s  ...  1.418s
nvme/027 (test NVMe ns-rescan command on NVMeOF file-backed ns) [passed]
     runtime  1.121s  ...  1.430s
nvme/028 (test NVMe list-subsys command on NVMeOF file-backed ns) [passed]
     runtime  1.130s  ...  1.415s
nvme/029 (test userspace IO via nvme-cli read/write interface) [passed]
     runtime  1.261s  ...  1.564s
nvme/030 (ensure the discovery generation counter is updated 
appropriately) [passed]
     runtime  0.115s  ...  0.205s
nvme/031 (test deletion of NVMeOF controllers immediately after setup) 
[passed]
     runtime  0.802s  ...  3.861s
nvme/038 (test deletion of NVMeOF subsystem without enabling) [passed]
     runtime  0.015s  ...  0.012s
nvme/040 (test nvme fabrics controller reset/disconnect operation during 
I/O) [passed]
     runtime  7.296s  ...  8.020s
nvme/041 (Create authenticated connections) [passed]
     runtime  0.448s  ...  0.759s
nvme/042 (Test dhchap key types for authenticated connections) [passed]
     runtime  2.757s  ...  4.790s
nvme/043 (Test hash and DH group variations for authenticated 
connections) [passed]
     runtime  0.705s  ...  6.904s
nvme/044 (Test bi-directional authentication) [passed]
     runtime  1.227s  ...  1.835s
nvme/045 (Test re-authentication) [passed]
     runtime  3.646s  ...  3.791s
nvme/047 (test different queue types for fabric transports)  [not run]
     runtime  1.718s  ...
     nvme_trtype=loop is not supported in this test
nvme/048 (Test queue count changes on reconnect)             [not run]
     runtime  6.242s  ...
     nvme_trtype=loop is not supported in this test
################nvme_trtype=tcp############
nvme/002 (create many subsystems and test discovery)         [not run]
     runtime  19.523s  ...
     nvme_trtype=tcp is not supported in this test
nvme/003 (test if we're sending keep-alives to a discovery controller) 
[passed]
     runtime  10.082s  ...  10.087s
nvme/004 (test nvme and nvmet UUID NS descriptors) [passed]
     runtime  1.456s  ...  1.145s
nvme/005 (reset local loopback target) [passed]
     runtime  1.808s  ...  1.210s
nvme/006 (create an NVMeOF target with a block device-backed ns) [passed]
     runtime  0.066s  ...  0.055s
nvme/007 (create an NVMeOF target with a file-backed ns) [passed]
     runtime  0.033s  ...  0.045s
nvme/008 (create an NVMeOF host with a block device-backed ns) [passed]
     runtime  1.476s  ...  1.164s
nvme/009 (create an NVMeOF host with a file-backed ns) [passed]
     runtime  1.435s  ...  1.120s
nvme/010 (run data verification fio job on NVMeOF block device-backed 
ns) [passed]
     runtime  113.720s  ...  93.167s
nvme/011 (run data verification fio job on NVMeOF file-backed ns) [passed]
     runtime  80.072s  ...  81.600s
nvme/012 (run mkfs and data verification fio job on NVMeOF block 
device-backed ns) [passed]
     runtime  93.449s  ...  95.264s
nvme/013 (run mkfs and data verification fio job on NVMeOF file-backed 
ns) [passed]
     runtime  64.751s  ...  66.072s
nvme/014 (flush a NVMeOF block device-backed ns) [passed]
     runtime  7.489s  ...  6.727s
nvme/015 (unit test for NVMe flush for file backed ns) [passed]
     runtime  6.214s  ...  5.914s
nvme/016 (create/delete many NVMeOF block device-backed ns and test 
discovery) [not run]
     runtime  12.590s  ...
     nvme_trtype=tcp is not supported in this test
nvme/017 (create/delete many file-ns and test discovery)     [not run]
     runtime  12.932s  ...
     nvme_trtype=tcp is not supported in this test
nvme/018 (unit test NVMe-oF out of range access on a file backend) [passed]
     runtime  1.422s  ...  1.121s
nvme/019 (test NVMe DSM Discard command on NVMeOF block-device ns) [passed]
     runtime  1.437s  ...  1.161s
nvme/020 (test NVMe DSM Discard command on NVMeOF file-backed ns) [passed]
     runtime  1.437s  ...  1.122s
nvme/021 (test NVMe list command on NVMeOF file-backed ns) [passed]
     runtime  1.414s  ...  1.123s
nvme/022 (test NVMe reset command on NVMeOF file-backed ns) [passed]
     runtime  1.767s  ...  1.172s
nvme/023 (test NVMe smart-log command on NVMeOF block-device ns) [passed]
     runtime  1.442s  ...  1.144s
nvme/024 (test NVMe smart-log command on NVMeOF file-backed ns) [passed]
     runtime  1.440s  ...  1.122s
nvme/025 (test NVMe effects-log command on NVMeOF file-backed ns) [passed]
     runtime  1.420s  ...  1.119s
nvme/026 (test NVMe ns-descs command on NVMeOF file-backed ns) [passed]
     runtime  1.418s  ...  1.114s
nvme/027 (test NVMe ns-rescan command on NVMeOF file-backed ns) [passed]
     runtime  1.430s  ...  1.140s
nvme/028 (test NVMe list-subsys command on NVMeOF file-backed ns) [passed]
     runtime  1.415s  ...  1.117s
nvme/029 (test userspace IO via nvme-cli read/write interface) [passed]
     runtime  1.564s  ...  1.258s
nvme/030 (ensure the discovery generation counter is updated 
appropriately) [passed]
     runtime  0.205s  ...  0.137s
nvme/031 (test deletion of NVMeOF controllers immediately after setup) 
[passed]
     runtime  3.861s  ...  0.849s
nvme/038 (test deletion of NVMeOF subsystem without enabling) [passed]
     runtime  0.012s  ...  0.016s
nvme/040 (test nvme fabrics controller reset/disconnect operation during 
I/O) [passed]
     runtime  8.020s  ...  7.273s
nvme/041 (Create authenticated connections) [passed]
     runtime  0.759s  ...  0.440s
nvme/042 (Test dhchap key types for authenticated connections) [passed]
     runtime  4.790s  ...  2.712s
nvme/043 (Test hash and DH group variations for authenticated 
connections) [passed]
     runtime  6.904s  ...  0.731s
nvme/044 (Test bi-directional authentication) [passed]
     runtime  1.835s  ...  1.240s
nvme/045 (Test re-authentication) [passed]
     runtime  3.791s  ...  3.630s
nvme/047 (test different queue types for fabric transports) [passed]
     runtime    ...  1.701s
nvme/048 (Test queue count changes on reconnect) [passed]
     runtime    ...  6.244s
blktests (master) #





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