{"action":"created","issue":{"url":"https://api.github.com/repos/CTSRD-CHERI/cheribsd/issues/273","repository_url":"https://api.github.com/repos/CTSRD-CHERI/cheribsd","labels_url":"https://api.github.com/repos/CTSRD-CHERI/cheribsd/issues/273/labels{/name}","comments_url":"https://api.github.com/repos/CTSRD-CHERI/cheribsd/issues/273/comments","events_url":"https://api.github.com/repos/CTSRD-CHERI/cheribsd/issues/273/events","html_url":"https://github.com/CTSRD-CHERI/cheribsd/issues/273","id":347165265,"node_id":"MDU6SXNzdWUzNDcxNjUyNjU=","number":273,"title":"Intermittent \"limit\"-induced kernel panics","user":{"login":"nwf","id":156882,"node_id":"MDQ6VXNlcjE1Njg4Mg==","avatar_url":"https://avatars3.githubusercontent.com/u/156882?v=4","gravatar_id":"","url":"https://api.github.com/users/nwf","html_url":"https://github.com/nwf","followers_url":"https://api.github.com/users/nwf/followers","following_url":"https://api.github.com/users/nwf/following{/other_user}","gists_url":"https://api.github.com/users/nwf/gists{/gist_id}","starred_url":"https://api.github.com/users/nwf/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/nwf/subscriptions","organizations_url":"https://api.github.com/users/nwf/orgs","repos_url":"https://api.github.com/users/nwf/repos","events_url":"https://api.github.com/users/nwf/events{/privacy}","received_events_url":"https://api.github.com/users/nwf/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":3,"created_at":"2018-08-02T20:36:55Z","updated_at":"2018-08-05T08:10:24Z","closed_at":null,"author_association":"NONE","body":"Occasionally I see something like this on my CheriBSD fork.  I don't think any of my changes are relevant, so for the moment will pretend this is an upstream issue.\r\n\r\n```\r\n(limits -c 0 /root/tests/cheri/bin/basic-00090-large.exe  ; echo $? > basic-00090-large.out) || true\r\npanic: vm_fault_hold: fault on nofault entry, addr: 0xc000000004ddb000\r\ntime = 1533142345\r\nKDB: enter: panic\r\n[ thread pid 3107 tid 100048 ]\r\nStopped at      kdb_enter+0x94: break   0\r\ndb> bt\r\nTracing pid 1067 tid 100048 td 0x9800000002066640\r\nkdb_enter+0x94 (?,?,?,?) ra ffffffff803e3544 sp c0000000003ae980 sz 32\r\nvpanic+0x1c4 (?,?,?,?) ra ffffffff803e35f4 sp c0000000003ae9a0 sz 64\r\npanic+0x34 (?,?,?,?) ra 0 sp c0000000003ae9e0 sz 80\r\n```\r\n\r\nRunning `alltrace` at the prompt reveals that it is the `limit` thread whose stack ends in `panic`, and that the test itself has apparently already exited.  I'm not sure what to make of this; what more would be useful to know?"},"comment":{"url":"https://api.github.com/repos/CTSRD-CHERI/cheribsd/issues/comments/410503682","html_url":"https://github.com/CTSRD-CHERI/cheribsd/issues/273#issuecomment-410503682","issue_url":"https://api.github.com/repos/CTSRD-CHERI/cheribsd/issues/273","id":410503682,"node_id":"MDEyOklzc3VlQ29tbWVudDQxMDUwMzY4Mg==","user":{"login":"arichardson","id":4019307,"node_id":"MDQ6VXNlcjQwMTkzMDc=","avatar_url":"https://avatars0.githubusercontent.com/u/4019307?v=4","gravatar_id":"","url":"https://api.github.com/users/arichardson","html_url":"https://github.com/arichardson","followers_url":"https://api.github.com/users/arichardson/followers","following_url":"https://api.github.com/users/arichardson/following{/other_user}","gists_url":"https://api.github.com/users/arichardson/gists{/gist_id}","starred_url":"https://api.github.com/users/arichardson/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/arichardson/subscriptions","organizations_url":"https://api.github.com/users/arichardson/orgs","repos_url":"https://api.github.com/users/arichardson/repos","events_url":"https://api.github.com/users/arichardson/events{/privacy}","received_events_url":"https://api.github.com/users/arichardson/received_events","type":"User","site_admin":false},"created_at":"2018-08-05T08:10:24Z","updated_at":"2018-08-05T08:10:24Z","author_association":"MEMBER","body":"I think this could be related to smbfs. I just ran the libc++ testsuite without smbfs and it completed successfully whereas when I mount the files with smbfs I have always had the job fail due to this panic."}}
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