Michael Ellerman <mpe@xxxxxxxxxxxxxx> writes: > "Linux regression tracking (Thorsten Leemhuis)" <regressions@xxxxxxxxxxxxx> writes: >> [CCing the regression list, as it should be in the loop for regressions: >> https://docs.kernel.org/admin-guide/reporting-regressions.html] >> >> On 20.05.24 17:15, Christoph Hellwig wrote: >>> Adding ben and the linuxppc list. >> >> Hmm, no reply and no other progress to get this resolved afaics. So lets >> bring Michael into the mix, he might be able to help out. > > Sorry I didn't see the original forward for some reason. > > I haven't seen this on my G5, but it's hard drive is on SATA. I think > the CDROM is pata_macio, but there isn't a disk in the drive to test > with. > >> BTW TWIMC: a PowerMac G5 user user reported similar symptoms here >> recently: https://bugzilla.kernel.org/show_bug.cgi?id=218858 > > AFAICS that report is from a 4K page size kernel (Page orders: ... > virtual = 12), so there must be something else going on? No that's wrong. The actual hardware page size is 4K, but CONFIG_PAGE_SIZE and PAGE_SHIFT etc. is 64K. So at least for this user the driver used to work with 64K pages, and now doesn't. cheers
