Hi, I am using an HP probook 4430 with Jmicron 38x rev30 Host controller. I am using a sdio wlan card with 3.5.6 kernel and see timeout errors when running heavy traffic. The MMC debug log is below. Jan 30 01:41:02 HP-ProBook-4430s kernel: [ 3027.533998] mmc0: starting CMD53 arg 10002240 flags 000001b5 Jan 30 01:41:02 HP-ProBook-4430s kernel: [ 3027.534001] mmc0: blksz 64 blocks 1 flags 00000200 tsac 1000 ms nsac 0 Jan 30 01:41:02 HP-ProBook-4430s kernel: [ 3027.534029] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001 Jan 30 01:41:02 HP-ProBook-4430s kernel: [ 3027.534035] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000002 Jan 30 01:41:02 HP-ProBook-4430s kernel: [ 3027.534043] mmc0: req done (CMD53): 0: 00002000 00000000 00000000 00000000 Jan 30 01:41:02 HP-ProBook-4430s kernel: [ 3027.534045] mmc0: 64 bytes transferred: 0 Jan 30 01:41:02 HP-ProBook-4430s kernel: [ 3027.534052] mmc0: starting CMD53 arg 10002080 flags 000001b5 Jan 30 01:41:02 HP-ProBook-4430s kernel: [ 3027.534054] mmc0: blksz 128 blocks 1 flags 00000200 tsac 1000 ms nsac 0 Jan 30 01:41:02 HP-ProBook-4430s kernel: [ 3027.534073] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000100 Jan 30 01:41:02 HP-ProBook-4430s kernel: [ 3027.534077] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001 Jan 30 01:41:12 HP-ProBook-4430s kernel: [ 3037.560607] mmc0: Timeout waiting for hardware interrupt. Jan 30 01:41:12 HP-ProBook-4430s kernel: [ 3037.560620] qqqqq 0, 21554, 682243, 72 Jan 30 01:41:12 HP-ProBook-4430s kernel: [ 3037.560624] sdhci: =========== REGISTER DUMP (mmc0)=========== Jan 30 01:41:12 HP-ProBook-4430s kernel: [ 3037.560632] sdhci: Sys addr: 0x00c100c0 | Version: 0x0000ad01 Jan 30 01:41:12 HP-ProBook-4430s kernel: [ 3037.560639] sdhci: Blk size: 0x00007080 | Blk cnt: 0x00000000 Jan 30 01:41:12 HP-ProBook-4430s kernel: [ 3037.560647] sdhci: Argument: 0x10002080 | Trn mode: 0x00000013 Jan 30 01:41:12 HP-ProBook-4430s kernel: [ 3037.560654] sdhci: Present: 0x01df0000 | Host ctl: 0x00000003 Jan 30 01:41:12 HP-ProBook-4430s kernel: [ 3037.560660] sdhci: Power: 0x0000000f | Blk gap: 0x00000000 Jan 30 01:41:12 HP-ProBook-4430s kernel: [ 3037.560668] sdhci: Wake-up: 0x00000000 | Clock: 0x00000107 Jan 30 01:41:12 HP-ProBook-4430s kernel: [ 3037.560675] sdhci: Timeout: 0x0000000d | Int stat: 0x00000002 Jan 30 01:41:12 HP-ProBook-4430s kernel: [ 3037.560682] sdhci: Int enab: 0x02ff008b | Sig enab: 0x02ff008b Jan 30 01:41:12 HP-ProBook-4430s kernel: [ 3037.560689] sdhci: AC12 err: 0x00000000 | Slot int: 0x00000000 Jan 30 01:41:12 HP-ProBook-4430s kernel: [ 3037.560696] sdhci: Caps: 0x054032b2 | Caps_1: 0x00000007 Jan 30 01:41:12 HP-ProBook-4430s kernel: [ 3037.560703] sdhci: Cmd: 0x0000353a | Max curr: 0x00000000 Jan 30 01:41:12 HP-ProBook-4430s kernel: [ 3037.560708] sdhci: Host ctl2: 0x00000000 Jan 30 01:41:12 HP-ProBook-4430s kernel: [ 3037.560710] sdhci: =========================================== Jan 30 01:41:12 HP-ProBook-4430s kernel: [ 3037.560750] mmc0: req done (CMD53): 0: 00002000 00000000 00000000 00000000 Jan 30 01:41:12 HP-ProBook-4430s kernel: [ 3037.560754] mmc0: 0 bytes transferred: -110 In the logs above, we see the command complete interrupt, but the transfer complete interrupt never reaches the mmc stack, but it can be seen in the register dump above. "Jan 30 01:41:12 HP-ProBook-4430s kernel: [ 3037.560675] sdhci: Timeout: 0x0000000d | Int stat: 0x00000002" Also with the addition of looping in the sdhci interrupt handler, I generally see the card interrupt causes a full loop to run as below, but this is not seen in the failure case. Jan 30 01:41:02 HP-ProBook-4430s kernel: [ 3027.533731] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000100 Jan 30 01:41:02 HP-ProBook-4430s kernel: [ 3027.533738] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000100 Jan 30 01:41:02 HP-ProBook-4430s kernel: [ 3027.533744] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000100 Jan 30 01:41:02 HP-ProBook-4430s kernel: [ 3027.533751] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000100 Jan 30 01:41:02 HP-ProBook-4430s kernel: [ 3027.533758] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000100 Jan 30 01:41:02 HP-ProBook-4430s kernel: [ 3027.533764] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000100 Jan 30 01:41:02 HP-ProBook-4430s kernel: [ 3027.533770] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000100 Jan 30 01:41:02 HP-ProBook-4430s kernel: [ 3027.533778] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000100 Jan 30 01:41:02 HP-ProBook-4430s kernel: [ 3027.533784] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000100 Jan 30 01:41:02 HP-ProBook-4430s kernel: [ 3027.533791] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000100 Jan 30 01:41:02 HP-ProBook-4430s kernel: [ 3027.533798] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000100 Jan 30 01:41:02 HP-ProBook-4430s kernel: [ 3027.533802] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000100 Jan 30 01:41:02 HP-ProBook-4430s kernel: [ 3027.533805] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000100 Jan 30 01:41:02 HP-ProBook-4430s kernel: [ 3027.533810] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000100 Jan 30 01:41:02 HP-ProBook-4430s kernel: [ 3027.533813] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000100 Jan 30 01:41:02 HP-ProBook-4430s kernel: [ 3027.533818] sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000100 Would be glad for some helpful pointers to resolve this. Would this be a controller problem or the card since the card interrupt seems to disappear at the failing cmd. Thanks, Sandeep. -- 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
