Hi Jan,
Am 22.06.19 um 20:40 schrieb Jan Kratochvil:
On Sat, 22 Jun 2019 10:59:29 +0200, Stefan Wahren wrote:
it does matter, because there is zero free documentation about the sdhost controller on the BCM2835.
"Kingston C16G JAPAN, SDC2", bought in 2009.
Raspbian uses their downstream sdhost driver bcm2835-sdhost, while Fedora the mainline driver bcm2835. This one was derived from the downstream one around kernel 4.12.
So why not to update upstream kernel from the downstream one again...
this won't work. During upstreaming process there has been a lot of changes to get this driver mainline. So we can't simply merge them again. We need to finding the offending upstream commit and revert it.
# I have verified now that it is a regression # since (as this kernel boots fine directly from my Kingston MicroSD): # Fedora-Server-29-1.2.aarch64.raw.xz = kernel-4.18.16-300.fc29.aarch64
Thanks this is very helpful. Could you please test Fedora kernel 4.19 and 5.0 for aarch64? This would narrow down the issue much more.
I have tried to put the kernel-4.18.16-300.fc29 driver drivers/mmc/host/bcm2835.c into kernel-5.1.12-300.fc30: https://people.redhat.com/jkratoch/bcmbug.diff https://koji.fedoraproject.org/koji/taskinfo?taskID=35710809
And it booted without any error - normally it fails in 60-100 seconds after boot like: [ 70.246299] sdhost-bcm2835 3f202000.mmc: timeout waiting for hardware interrupt.
But then with my custom built kernel I ran 'dnf distro-sync' and it failed again, just later: [ 1059.688583] sdhost-bcm2835 3f202000.mmc: timeout waiting for hardware interrupt. [ 1059.793528] sdhost-bcm2835 3f202000.mmc: bcm2835_read_wait_sdcmd: timeout (100 ms) ... [ 1060.341279] sdhost-bcm2835 3f202000.mmc: bcm2835_read_wait_sdcmd: timeout (100 ms) [ 1060.346235] sdhost-bcm2835 3f202000.mmc: previous command never completed. [ 1060.350784] print_req_error: I/O error, dev mmcblk0, sector 9965568 flags 1 [ 1060.350832] mmc0: card 495c removed [ 1060.355420] EXT4-fs warning (device mmcblk0p3): ext4_end_bio:318: I/O error 10 writing to inode 8907 (offset 0 size 2572288 starting block 1245986) [ 1060.366554] Buffer I/O error on device mmcblk0p3, logical block 932129
OK, I see maybe I will give up and just buy a newer MicroSD card...
It would be helpful to send me this card and i'll try to fix this.
Stefan
Thanks, Jan Kratochvil _______________________________________________ arm mailing list -- arm@lists.fedoraproject.org To unsubscribe send an email to arm-leave@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/arm@lists.fedoraproject.org