On Sun, Nov 20, 2022 at 12:20:13AM +0100, Jorropo wrote: > Matthew Wilcox <willy@xxxxxxxxxxxxx> wrote : > > > > On Sat, Nov 19, 2022 at 05:07:45AM +0100, Jorropo wrote: > > > #regzbot introduced v5.19-rc6..1dd685c414a7b9fdb3d23aca3aedae84f0b998ae > > > > > > Hi, I recently tried to upgrade to linux v6.0.x but when trying to > > > boot it fails with "error: out of memory" when or after loading > > > initramfs (which then kpanics because the vfs root is missing). > > > The latest releases I tested are v6.0.9 and v6.1-rc5 and it's broken there too. > > > > > > I bisected the error to this patch: > > > 1dd685c414a7b9fdb3d23aca3aedae84f0b998ae "XArray: Add calls to > > > might_alloc()" is the first bad commit. > > > I've confirmed this is not a side effect of a poor bitsect because > > > 1dd685c414a7b9fdb3d23aca3aedae84f0b998ae~1 (v5.19-rc6) works. > > > > That makes no sense. I can't look into this until Wednesday, but I > > suggest that what you have is an intermittent failure to boot, and > > the bisect has led you down the wrong path. > > I rebuilt both 1dd685c414a7b9fdb3d23aca3aedae84f0b998ae and > the parent commit (v5.19-rc6), then tried to start each one 8 times > (shuffled in a Thue morse sequence). > 0 successes for 1dd685c414a7b9fdb3d23aca3aedae84f0b998ae > 8 successes for v5.19-rc6 > > This really does not look like an intermittent issue. OK, you convinced me. Can you boot 1dd685c414 with the command line parameters "debug initcall_debug" so we get more information?
