Thanks Russell. Got it working. Regards, john On Fri, Jan 24, 2014 at 1:24 PM, Russell King - ARM Linux <linux@xxxxxxxxxxxxxxxx> wrote: > On Fri, Jan 24, 2014 at 01:14:08PM -0800, John Tobias wrote: >> Hello all, >> >> I am testing the suspend mode (S3) for my custom board with iMX6SL and >> the iMX6SL EVK as well. I am using 3.13 kernel, eMMC and MMC for the >> storage and systemd to control the OS. If I put my device in S3 mode, >> I got the following messages: >> >> [ 27.949393] PM: Syncing filesystems ... done. >> [ 27.972392] mmc0: card 0001 removed >> [ 28.033613] end_request: I/O error, dev mmcblk0, sector 0 >> [ 28.063493] end_request: I/O error, dev mmcblk0, sector 0 >> [ 28.107933] end_request: I/O error, dev mmcblk0, sector 0 >> [ 28.131456] end_request: I/O error, dev mmcblk0, sector 0 >> [ 28.153651] end_request: I/O error, dev mmcblk0, sector 0 >> [ 28.215530] Freezing user space processes ... (elapsed 0.001 seconds) done. >> [ 28.224284] Freezing remaining freezable tasks ... (elapsed 0.001 >> seconds) done. >> [ 28.233658] Suspending console(s) (use no_console_suspend to debug) >> >> If I press any key, it will wake up. But, I got the following errors: >> >> [ 17.815008] mmc0: new high speed DDR MMC card at address 0001 >> [ 17.828024] mmcblk0: mmc0:0001 SEM04G 3.68 GiB >> [ 17.833522] mmcblk0boot0: mmc0:0001 SEM04G partition 1 2.00 MiB >> [ 17.839699] mmcblk0boot1: mmc0:0001 SEM04G partition 2 2.00 MiB >> [ 17.847150] mmcblk0rpmb: mmc0:0001 SEM04G partition 3 2.00 MiB >> [ 17.860116] mmcblk0: p1 p2 p3 p4 < p5 p6 > >> [ 17.883550] mmcblk0boot1: unknown partition table >> [ 17.899549] mmcblk0boot0: unknown partition table > > This is because MMC insists that when you suspend, the card will be > ejected, and when you resume, it will be re-inserted - it's effectively > the same as if you pulled the card out and then plugged it back in > without shutting the system down. > > This is the default for the MMC subsystem, unless MMC_UNSAFE_RESUME > is set - and you can't have rootfs in MMC and suspend/resume unless > that's set. > > -- > FTTC broadband for 0.8mile line: 5.8Mbps down 500kbps up. Estimation > in database were 13.1 to 19Mbit for a good line, about 7.5+ for a bad. > Estimate before purchase was "up to 13.2Mbit". -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
