On Wed, Feb 27, 2019 at 08:47:09PM +0000, Jon Hunter wrote: > > On 21/02/2019 08:42, Marek Szyprowski wrote: > > Dear All, > > > > On 2019-02-15 12:13, Ming Lei wrote: > >> This patch pulls the trigger for multi-page bvecs. > >> > >> Reviewed-by: Omar Sandoval <osandov@xxxxxx> > >> Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxx> > > > > Since Linux next-20190218 I've observed problems with block layer on one > > of my test devices (Odroid U3 with EXT4 rootfs on SD card). Bisecting > > this issue led me to this change. This is also the first linux-next > > release with this change merged. The issue is fully reproducible and can > > be observed in the following kernel log: > > > > sdhci: Secure Digital Host Controller Interface driver > > sdhci: Copyright(c) Pierre Ossman > > s3c-sdhci 12530000.sdhci: clock source 2: mmc_busclk.2 (100000000 Hz) > > s3c-sdhci 12530000.sdhci: Got CD GPIO > > mmc0: SDHCI controller on samsung-hsmmc [12530000.sdhci] using ADMA > > mmc0: new high speed SDHC card at address aaaa > > mmcblk0: mmc0:aaaa SL16G 14.8 GiB > I have also noticed some failures when writing to an eMMC device on one > of our Tegra boards. We have a simple eMMC write/read test and it is > currently failing because the data written does not match the source. > > I did not seem the same crash as reported here, however, in our case the > rootfs is NFS mounted and so probably would not. However, the bisect > points to this commit and reverting on top of -next fixes the issues. It is sdhci, probably related with max segment size, could you test the following patch: https://marc.info/?l=linux-mmc&m=155128334122951&w=2 Thanks, Ming
