| freemangordon | Hi guys, starting with kernel version 5.3.0-59.53 on ubuntu 18.04, my atheros wireless dongle stopped functioning - kernel oops, see https://pastebin.com/X5QNS3kZ. oops is on https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/eoan/tree/drivers/net/wireless/ath/ath9k/htc_drv_init.c?h=master-next&id=30da5834ebc404b6bdb8cbcbea99bb5813e4dfcb#n945 . I bisected to https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/eoan/comm | 11:29 |
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| freemangordon | Putting printk("%px", priv); to print that priv variable *fixes* the issue, so it seems to be gcc bug | 11:30 |
| freemangordon | now, I am stuck, as I have no idea how am I supposed to report such kind of issue | 11:31 |
| jeremy31 | freemangordon: uninstall the iwlwifi backports | 11:51 |
| freemangordon | jeremy31: already uninstalled | 12:05 |
| jeremy31 | freemangordon: have you rebooted since? | 12:06 |
| freemangordon | jeremy31: come on, did you look at what I have posted ^^^? I did "git bisect" over ubuntu kernel tree... | 12:07 |
| freemangordon | ofc I have rebooted, how am I supposed to "git bisect good/bad" without it | 12:07 |
| jeremy31 | freemangordon: I think the 5.3 kernel is EOL | 12:08 |
| freemangordon | jeremy31: it is not the kernel, but gcc | 12:08 |
| freemangordon | adding a simple printk() fixes the issue | 12:08 |
| freemangordon | also, I don;t understand how is 5.3 EOL is if is part of LTS HWE | 12:09 |
| freemangordon | *if it is | 12:09 |
| jeremy31 | freemangordon: 5.3 is only supported as long as Ubuntu 19.10 | 12:09 |
| freemangordon | ok, but again - this looks like gcc bug, not kernel | 12:10 |
| freemangordon | and that gcc bug may as well affect other kernel versions | 12:11 |
| jeremy31 | freemangordon: I have a USB wifi with same ID and I used it during Ubuntu 20.04 install | 12:11 |
| jeremy31 | your next updates should include the 5.4 kernel | 12:12 |
| freemangordon | are you sure? could you please share a source? | 12:13 |
| freemangordon | also, if it is gcc bug, how moving to 5.4 will fix the issue? | 12:15 |
| jeremy31 | It might be later as linux-generic-hwe-18.04 still shows a 5.3 kernel | 12:15 |
| freemangordon | exactly | 12:16 |
| tomreyn | only on bionic, though | 12:16 |
| jeremy31 | https://wiki.ubuntu.com/Kernel/RollingLTSEnablementStack#Kernel.2FSupport-1.A18.04.x_Ubuntu_Kernel_Support | 12:17 |
| freemangordon | so, you mean that on august there will be upgrade to 5.4? | 12:18 |
| tomreyn | there is 5.4 already in proposed | 12:19 |
| tomreyn | Package: linux-image-generic-hwe-18.04 | 12:20 |
| tomreyn | Version: 5.4.0.42.46~18.04.35 | 12:20 |
| tomreyn | Source: linux-meta-hwe-5.4 | 12:20 |
| tomreyn | and then there is -hwe-edge, too, if you want to live on the edge | 12:21 |
| === ricotz_ is now known as ricotz | ||
| freemangordon | I don't (want to live on the edge), that's why I am on LTS | 12:21 |
| freemangordon | this is a 'production' laptop | 12:22 |
| tomreyn | yes, i should not have treated your report as a support request, since you're clearly trying to solve the root cause, sorry. | 12:22 |
| freemangordon | tomreyn: ok, so your advice is to not waste time filling bug reports/sending patches and to live with my locally patched ath9k_htc.ko until there is a new kernel release? | 12:23 |
| freemangordon | yes, I don;t really need support, but rather an advice on what to do with the issue investigation/results I have gathered so far :) | 12:24 |
| tomreyn | my advice is: if you're trying to solve a bug, report a bug (after looking for duplicate reports), and provide the info needed to analyze the bug. | 12:24 |
| jeremy31 | I am online now with the same wifi and kernel 5.3.0-62 | 12:26 |
| freemangordon | jeremy31: so? | 12:26 |
| tomreyn | by the way, your first message on this channel was cut off after "I bisected to" | 12:27 |
| freemangordon | ah, sorry | 12:27 |
| freemangordon | tomreyn: ...I bisected to https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/eoan/commit/?h=master-next&id=04a29b0362f0ddaf6e8e489a1be5643362bc66ae, which doesn't make sense ... | 12:27 |
| freemangordon | seems release/version change somehow broke it | 12:28 |
| * tomreyn can't help with analyzing the bisect, not an ubuntu kernel developer / packager | 12:29 | |
| freemangordon | jeremy31: the fact that it works on your system doesn't mean I don;t have oops here every time I attach the dongle | 12:29 |
| freemangordon | yeah, lets hope some of the ubuntu kernel devs appear, will try to raise a bug in the meanwhile | 12:30 |
| === halvors1 is now known as halvors | ||
| === xclaesse5 is now known as xclaesse | ||
| === halvors1 is now known as halvors | ||
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