I also looked at this and compared with older kernels. This test has never progressed past the "Kretprobe dynamic event with maxactive" test on 5.8, but it has on 5.4:
``` 18:41:31 DEBUG| [stdout] # [43] Kprobe event parser error log check [PASS] 18:41:32 DEBUG| [stdout] # [44] Kretprobe dynamic event with arguments [PASS] 18:41:33 DEBUG| [stdout] # [45] Kretprobe dynamic event with maxactive [PASS] 18:41:49 DEBUG| [stdout] # [46] Register/unregister many kprobe events [PASS] 18:41:49 DEBUG| [stdout] # [47] Kprobe dynamic event - adding and removing [PASS] 18:41:50 DEBUG| [stdout] # [48] Uprobe event parser error log check [PASS] 18:41:50 DEBUG| [stdout] # [49] test for the preemptirqsoff tracer [UNSUPPORTED] 18:42:32 DEBUG| [stdout] # [50] Meta-selftest [PASS] ``` I suspect that next test is causing a hang and ssh dies. The autopkgtest infrastructure sees this and tries to provide some debugging info (the console log and vm details). -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1918226 Title: testbed auxverb failed with exit code 255 with linux on Groovy ADT failure Status in linux package in Ubuntu: Invalid Status in linux source package in Groovy: Confirmed Bug description: Testing failed on: arm64: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-groovy/groovy/arm64/l/linux/20210308_234307_e716b@/log.gz Looks to be a flaky test with this error occurring frequently. This is not a regression. Found a previously reported (expired) bug with the same error: https://launchpad.net/bugs/1549425 [ 6606.751232] audit: backlog limit Creating nova instance adt-groovy-arm64-linux-20210308-143145 from image adt/ubuntu-groovy-arm64-server-20210308.img (UUID 1cfb02a6-bf88-46bb-a8f1-3c6589cd939e)... Creating nova instance adt-groovy-arm64-linux-20210308-143145 from image adt/ubuntu-groovy-arm64-server-20210308.img (UUID 1cfb02a6-bf88-46bb-a8f1-3c6589cd939e)... autopkgtest [23:42:55]: ERROR: testbed failure: testbed auxverb failed with exit code 255 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1918226/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp