On 13.06.23 13:23, Bagas Sanjaya wrote: > On 6/12/23 20:52, Bagas Sanjaya wrote: >> Hi, >> >> I notice a regression report on Bugzilla [1]. Quoting from it: >> >>> w_scan tool on kernel 6.3.7 hangs so badly that it cannot be killed by kill -9 >>> I tried also w_scan_cpp 20230604 but it also fails I have 2040:8268 Hauppauge soloHD device as reported by lsusb. During reboot of the OS it prints a lot of kernel errors but it is after syslog is killed I guess and in syslog messages I do not see anything. On default Debian kernel 5.10.0-23 this problem does not exists. >> >> >> See Bugzilla for the full thread and attached dmesg and kernel config. >> >> Lukasz: On what hardware you have this regression? Also, it is really >> helpful if you can perform bisection (as outlined >> in Documentation/admin-guide/bug-bisect.html) to find the culprit, >> when developers can't figure it out by inspecting the code alone. >> Last but not least, please also try latest mainline (currently v6.4-rc6). >> >> Anyway, I'm adding it to regzbot: >> >> #regzbot introduced: v5.10..v6.3 https://bugzilla.kernel.org/show_bug.cgi?id=217540 >> #regzbot title: w_scan zombie (unkillable) on kernel v6.3 > > Another reporter on Bugzilla with similar regression as this one had > bisected the culprit, so: > > Hyunwoo Kim: It looks like this regression is caused by a backported > commit of yours. Would you like to take a look on it? > > #regzbot introduced: 8994830135b38b TWIMC, revert for mainline already in preparation, for details see: https://lore.kernel.org/all/23d5f9d6-f0db-a9af-1291-e9d6ac3cd126@xxxxxxxxxxxxx/ Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) -- Everything you wanna know about Linux kernel regression tracking: https://linux-regtracking.leemhuis.info/about/#tldr If I did something stupid, please tell me, as explained on that page. #regzbot monitor: https://lore.kernel.org/all/20230613053314.70839926@mir/ #regzbot monitor: https://lore.kernel.org/all/20230609082238.3671398-1-mchehab@xxxxxxxxxx/