Thanks for that check David, that is good news to finally get a hold on this.
In git current branch "master" (4bb3583c) is at 24.0-1 which isn't in either Debian nor Ubuntu. Both Distros due to the freezes are on 22.1-1 from branch "debian/master" e5651d01 for now. v22.1 is just a minimal set of fixes on top of v22: * Backport fixes: * ibacm: Print correct pkey * libhns: Bugfix for allocating and freeing sq db buffer * verbs: Fix pingpong buffer validation * ABI Files Thanks to your test we know we are most likely looking at something in v22..head on the master branch to be a fix for your case. I further checked if the v24 from 4bb3583c would have any massive changes in the packaging itself that could explain it, but no - it is only minor changes for pyverbs. That is good as that means one of the actual code changes most likely is the fix you are looking for. There are fixes queued in the "stable-v22" branch already (but not yet released): d05900db libhns: Bugfix for filtering zero length sge f3bb8968 buildlib: Ensure stanza is properly sorted e02238ea debian: Create empty pyverbs package for builds without pyverbs 90886054 verbs: Fix attribute returning c7c842a3 build: Fix pyverbs build issues on Debian 8043035f travis: Change SuSE package target due to Travis CI failures a4bbfc33 verbs: Avoid inline send when using device memory in rc_pingpong 4b38d3cd mlx5: Use copy loop to read from device memory d38817ea verbs: clear cmd buffer when creating indirection table 9dcfa6cd libhns: Bugfix for using buffer length 23e3a5da mlx5: Fix incorrect error handling when SQ wqe count is 0 With some (still unlikely) luck 23e3a5da might already be your fix and is backported. OTOH none of the other changes v22..head seem to be obviously the fix, none of the ib/lmx fixes states your problem exactly and no change is made to uverbs_request_finish or ib_uverbs_ex_create_rwq_ind_table. Since you fortunately have a setup that can rebuild and retest, could you test with a: - rdma-core build on 23e3a5da (probably fix on stable-v22) - rdma-core build on d05900db (current head on stable-v22) - if none of the above quick checks helps, we'd need a bisect a la: $ git bisect start --term-new fixed --term-old broken $ git bisect broken v22 $ git bisect fixed 4bb3583c Bisecting: 86 revisions left to test after this (roughly 7 steps) [85cf1829e94585ceb38c5c221b49305866fb4344] Merge pull request #472 from oulijun/lijun-rdma-core -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1823836 Title: dpdk app is reporting: net_mlx5: probe of PCI device xxxx aborted after encountering an error: Unknown error -95 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1823836/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
