On 26 May 2022, at 13:15, Andrew Morton wrote: > On Thu, 26 May 2022 17:06:08 +0200 Michael Walle <michael@xxxxxxxx> wrote: > >> Hi, >> >> Since the next-20220526 I'm getting the following error during boot: >> cma: cma_alloc: reserved: alloc failed, req-size: 128 pages, ret: -16 >> >> E.g. on the following arm64 board: >> https://lavalab.kontron.com/scheduler/job/121315 >> >> But initially I've noticed it on an arm board, which isn't >> in kernelci yet: >> https://pastebin.com/raw/JY2nFJjT >> (Ignore the subsequent i2c kernel oops, that seems to be >> a bug in the xdma driver). >> >> next-20220524 was still alright (not sure what has happened >> to next-20220525): >> https://lavalab.kontron.com/scheduler/job/120496 >> >> Bisect of mm-everything..v5.18-rc4 is currently running but >> takes a while. Maybe anyone has an idea what goes wrong here? > > Please try reverting 88ee134320b8311 ("mm: fix a potential infinite > loop in start_isolate_page_range()"). > > Is a real bummer. That was v11 of the patchset, it was in -next for a > month. The day before the merge window opens, bug turns up and it > seems that the attempt to fix the bug added a new one. Hopefully Zi Yan > will be able to plug this one soon. Hi Michael, The patch from this link should fix it: https://lore.kernel.org/linux-mm/8C74B0BA-3C69-46EE-8C14-0CE6787D0B65@xxxxxxxxxx/. Please give it a try. Hi Andrew, I will send a formal patchset soon. -- Best Regards, Yan, Zi
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