On Tue, Oct 01, 2024 at 12:22:35PM GMT, Bert Karwatzki wrote: > Am Dienstag, dem 01.10.2024 um 11:02 +0100 schrieb Lorenzo Stoakes: > > On Tue, Oct 01, 2024 at 11:57:02AM GMT, Bert Karwatzki wrote: > > > Am Dienstag, dem 01.10.2024 um 10:49 +0100 schrieb Lorenzo Stoakes: > > > > On Tue, Oct 01, 2024 at 10:20:02AM GMT, Lorenzo Stoakes wrote: > > > > > On Tue, Oct 01, 2024 at 11:10:55AM GMT, Bert Karwatzki wrote: > > > > > > It seems that the maple tree broke down, here's the result of the run with > > > > > > CONFIG_DEBUG_MAPLETREE=y in all it's g(l)ory. (Here I didn't need to try to > > > > > > kill > > > > > > the processes to get an error and soon after the error occured everything > > > > > > stopped working so I had to reboot via powerbutton.) > > > > > > > > > > > > Bert Karwatzki > > > > > > > > > > Yike thanks very much! > > > > > > > > > > If it's at all possible for you to confirm this happens on Linus's tree > > > > > just to be super super sure (again I totally expect this) then that'd be > > > > > amazing. > > > > > > > > > > I ask because we have another thread which bisected a problem to this > > > > > commit which we didn't think was the cause and seemed actually to be the > > > > > result of something else fiddling around with things it shouldn't so just > > > > > want to entirely rule that out (a fix was applied to Linus's tree for > > > > > that). > > > > > > > > > > [snip for snaity] > > > > > > > > OK so looking at the output it looks very much like your report is > > > > unfortunate truncated... > > > > > > > > There is a 'BUG at mas_validate_limits:7523 (1)' report but immediately > > > > prior to this there should be a line containing data formatted to "node%p: > > > > data_end %u != the last slot offset %u". > > > > > > Actually one can just grab the report from /var/log/kern.log after a reboot, I > > > just forgot to copy that line, here it is for the old report: > > > > Well depends on distro etc. I suspect systemd systems probably store too but I > > like to go with the 'easy' or at least straightforward option :P thanks though! > > :) > > Distro is debian sid, last updated 20240929. Thanks! > > > > > > > [ T4598] node00000000f48524f2: data_end 9 != the last slot offset 8 > > > > > > and here's the error report from next-20241001: > > > > > > > Can you confirm that's definitely the first line in any bug report in dmesg from > > boot? As after the first the tree is likely to get more corrupt and later > > reports are just not going to be that useful. > > > > Could you upload the full dmesg somewhere and give a link? Or send it > > direct to me at lorenzo.stoakes@xxxxxxxxxx? As pasting whole thing on list > > might cause lore to sick up a bit. Possibly... > > > > Thanks! > > > > [snip] > > I used bugzilla.kernel.org as a pastebin, here are both full dmesg logs: > https://bugzilla.kernel.org/show_bug.cgi?id=219338 Perfect. OK so what is less perfect is this looks very genuine and present in rc1 so yeah. Thanks so much for helping out here - I may ask you to try some patches if that's ok at some point? Cheers, Lorenzo > > Bert Karwatzki > >
