Still present in bionic with HWE 18.04.2 (kernel 4.18.0-22). Card reader fails with high-speed SDXC.
Confirmed upstream: https://bugzilla.kernel.org/show_bug.cgi?id=109231 lspci --nnk 01:00.0 SD Host controller [0805]: O2 Micro, Inc. SD/MMC Card Reader Controller [1217:8520] (rev 01) Subsystem: Dell SD/MMC Card Reader Controller [1028:062d] Kernel driver in use: sdhci-pci Kernel modules: sdhci_pci dmesg: [ 1.369287] sdhci-pci 0000:01:00.0: SDHCI controller found [1217:8520] (rev 1) [ 1.371230] mmc0: Unknown controller version (3). You may experience problems. [ 1.373523] mmc0: SDHCI controller on PCI [0000:01:00.0] using ADMA . . . [ 419.378067] mmc0: Tuning timeout, falling back to fixed sampling clock [ 419.379875] mmc0: new ultra high speed SDR104 SDXC card at address 5048 [ 419.383087] mmcblk0: mmc0:5048 SD256 232 GiB [ 419.386191] mmcblk0: p1 [ 429.519557] mmc0: Timeout waiting for hardware interrupt. [ 429.519561] mmc0: sdhci: ============ SDHCI REGISTER DUMP =========== [ 429.519566] mmc0: sdhci: Sys addr: 0x00000008 | Version: 0x00000603 [ 429.519571] mmc0: sdhci: Blk size: 0x00000200 | Blk cnt: 0x00000008 [ 429.519575] mmc0: sdhci: Argument: 0x00000008 | Trn mode: 0x0000003b [ 429.519580] mmc0: sdhci: Present: 0x01ff0000 | Host ctl: 0x00000017 [ 429.519584] mmc0: sdhci: Power: 0x0000000f | Blk gap: 0x00000000 [ 429.519589] mmc0: sdhci: Wake-up: 0x00000000 | Clock: 0x00000007 [ 429.519593] mmc0: sdhci: Timeout: 0x0000000a | Int stat: 0x00000000 [ 429.519598] mmc0: sdhci: Int enab: 0x02ff008b | Sig enab: 0x02ff008b [ 429.519602] mmc0: sdhci: AC12 err: 0x00000004 | Slot int: 0x00000000 [ 429.519607] mmc0: sdhci: Caps: 0x25bec8bf | Caps_1: 0x1000207f [ 429.519612] mmc0: sdhci: Cmd: 0x0000123a | Max curr: 0x005800c8 [ 429.519616] mmc0: sdhci: Resp[0]: 0x00000900 | Resp[1]: 0x0742ff7f [ 429.519621] mmc0: sdhci: Resp[2]: 0x325b5900 | Resp[3]: 0x80000900 [ 429.519624] mmc0: sdhci: Host ctl2: 0x0000800b [ 429.519628] mmc0: sdhci: ADMA Err: 0x00000000 | ADMA Ptr: 0x3541f208 [ 429.519629] mmc0: sdhci: ============================================ [ 450.058602] mmc0: Tuning timeout, falling back to fixed sampling clock See https://bugzilla.kernel.org/show_bug.cgi?id=109231#c12 Workaround updated to: rmmod sdhci_pci sdhci sdhci_acpi modprobe sdhci debug_quirks2="0x80000000" modprobe sdhci_pci ** Bug watch added: Linux Kernel Bug Tracker #109231 https://bugzilla.kernel.org/show_bug.cgi?id=109231 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1553688 Title: Lenovo Y700-17ISK: mmc0: Unknown controller version (3) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1553688/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
