[adding a bunch of people and two lists to the recipients, as Konstantin apparently hasn't sent any mail to any lists archived on lore for ~six weeks; maybe someone knows what's up or is willing to help out] On 27.11.23 07:18, Thorsten Leemhuis wrote: > Hi, Thorsten here, the Linux kernel's regression tracker. > > Konstantin, I noticed a regression report in bugzilla.kernel.org. > Apparently it's cause by a change of yours. > > As many (most?) kernel developers don't keep an eye on bugzilla, I > decided to forward it by mail. Note, you have to use bugzilla to reach > the reporter, as I sadly[1] can not CCed them in mails like this. > > Quoting from https://bugzilla.kernel.org/show_bug.cgi?id=218180 : Konstantin, are you still around? Would be great if you could look into this regression, as this sounds somewhat worrying. 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 poke >> The problem I am facing is the following: >> 1. I mount an NTFS partition via NTFS3 >> 2. I create a file >> 3. I write to the file >> 4. The file is empty >> 5. I remount the partition >> 6. The file has the changes I made before the remount >> >> I can avoid the remount by doing: >> sudo sysctl vm.drop_caches=3 > > See the ticket for more details. It according to the report happens > still happens with 6.7-rc2, but not with 6.1.y. The reporter bisected > the problem to ad26a9c84510af ("fs/ntfs3: Fixing wrong logic in > attr_set_size and ntfs_fallocate") [v6.2-rc1]. > > Side note: while briefly checking lore for existing problems caused by > that change I noticed two syzbot reports about it that apparently nobody > looked into: > > https://lore.kernel.org/all/000000000000bdf37505f1a7fc09@xxxxxxxxxx/ > https://lore.kernel.org/all/00000000000062174006016bc386@xxxxxxxxxx/ > > [TLDR for the rest of this mail: I'm adding this report to the list of > tracked Linux kernel regressions; the text you find below is based on a > few templates paragraphs you might have encountered already in similar > form.] > > BTW, let me use this mail to also add the report to the list of tracked > regressions to ensure it's doesn't fall through the cracks: > > #regzbot introduced: ad26a9c84510af > https://bugzilla.kernel.org/show_bug.cgi?id=218180 > #regzbot title: ntfs3: empty file on update without forced cache drop > #regzbot ignore-activity > > This isn't a regression? This issue or a fix for it are already > discussed somewhere else? It was fixed already? You want to clarify when > the regression started to happen? Or point out I got the title or > something else totally wrong? Then just reply and tell me -- ideally > while also telling regzbot about it, as explained by the page listed in > the footer of this mail. > > Developers: When fixing the issue, remember to add 'Link:' tags pointing > to the report (e.g. the buzgzilla ticket and maybe this mail as well, if > this thread sees some discussion). See page linked in footer for details. > > 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. > > [1] because bugzilla.kernel.org tells users upon registration their > "email address will never be displayed to logged out users" > >