[16:20] while testing the retpoline enabled kernel ( linux-image-4.4.0-113-generic ) from xenial-proposed, I found a regression LP: #1748671 which I'd like to be fixed before this kernel hits -updates [16:20] Launchpad bug 1748671 in linux (Ubuntu) "BUG: unable to handle kernel NULL pointer dereference at 0000000000000009" [Undecided,Confirmed] https://launchpad.net/bugs/1748671 [16:29] oh, I just noticed linux-image-4.4.0-115-generic in -proposed, I'll see if it helps with the above bug [16:32] sdeziel, do you know the last version that was not trivially reproduciblw [16:32] apw: 4.4.0-112.135 didn't have the issue [16:33] apw: it's what I had to roll back to [17:09] apw: 4.4.0-115.139 is also affected [17:11] sdeziel, is that triggered by ipv6 in ipv4 [17:14] apw: I don't know as the artful container tries to get both. I'll try to disable one and will report back. Unfortunately, the affected machine is this very laptop :( [17:18] apw: I just re-read an you said "ipv6 in ipv4" which I'm not using. Did you mean ipv6 OR ipv4 like I understood the first time? [17:18] sdeziel, i had gotten the impression there was ipv6 in there [17:19] sdeziel, this is 100% reproducible for you i believe right? [17:19] apw: yes, I'm assigning both v4 and v6 natively [17:19] yes, 100% [17:19] sdeziel, as there is only one change in 112->113 for that sort fo thing, which has one fix since [17:19] sdeziel, though that fix claims to be hyperthetical ... so ... hmmm [17:20] sdeziel, so ... if you can test them I will throw both those options up for you [17:20] apw: sure, I'm here to test stuff :) [17:22] sdeziel, amd64 ? [17:22] apw: yes [17:23] apw: "net: ipv4: fix for a race condition in raw_sendmsg" ? [17:24] right ... whcih is also where your stack strace is in [17:24] sdeziel, ^ will have something to test in about 20m [17:25] apw: awesome thanks [17:26] apw: I don't want to cloud the picture but I also hit LP: #1748513 with a similar looking trace to my untrained eye. It's on a different machine and not easily reproducible but maybe they both are related? [17:26] Launchpad bug 1748513 in linux (Ubuntu) "BUG: unable to handle kernel paging request at 00007f29ec101010" [Undecided,Confirmed] https://launchpad.net/bugs/1748513 [17:47] sdeziel, ok i think we may have found an issue here which would explain the issue ... so could you test: http://people.canonical.com/~apw/lp1748671/fix-not-xenial/ [17:48] apw: sure, give me a couple of minutes [18:15] sdeziel, and don't forget the linux-image-extra [18:15] apw: no I won't :) [18:19] apw: I'm missing linux-signed-image-4.4.0-115-generic (https://paste.ubuntu.com/=wFyMVxCK2G/). Not sure if it matters [18:20] rebooting [18:20] sdeziel, yeah i didn't make one, i can't make one with a signature that you could boot anyhow [18:24] apw: the test kernel fixed the problem [18:25] thanks a lot! [18:26] sdeziel, ok great, will get that applied [18:26] apw: any idea if that could also fix LP: #1748513? [18:26] Launchpad bug 1748513 in linux (Ubuntu) "BUG: unable to handle kernel paging request at 00007f29ec101010" [Undecided,Confirmed] https://launchpad.net/bugs/1748513 === ayan is now known as Guest19170 [21:16] Was looking forward to vboxguest module with 4.16, yet config patch seems to suggest it isn't set (config based on 4.15) - is someone aware, or where should I file a report? [21:26] FjodorAE, file a bug against the package linux for now, and let me know the bug number [21:41] apw: Thank you - https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1749015 [21:41] Ubuntu bug 1749015 in linux (Ubuntu) "4.16 - VBOXGUEST not built" [Undecided,New]