Messages in this thread Patch in this message | | | Date | Tue, 23 Sep 2008 23:24:59 +0200 | From | Luca Tettamanti <> | Subject | SDHCI: timeout during data transfer |
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Hi, I'm seeing timeout errors when transfering "big" (over 1MB or so) files to a SD card (small files are ok):
[ 251.956666] mmcblk0: error -110 transferring data [ 251.979810] end_request: I/O error, dev mmcblk0, sector 1572758 [ 251.981477] Buffer I/O error on device mmcblk0p1, logical block 1572742 [ 251.983198] lost page write due to I/O error on mmcblk0p1 [ 251.983788] end_request: I/O error, dev mmcblk0, sector 1572759 [ 251.983788] Buffer I/O error on device mmcblk0p1, logical block 1572743 [ 251.983788] lost page write due to I/O error on mmcblk0p1 [ 251.983788] end_request: I/O error, dev mmcblk0, sector 1572760 [ 251.983788] Buffer I/O error on device mmcblk0p1, logical block 1572744 [ 251.983788] lost page write due to I/O error on mmcblk0p1 [ 251.983788] end_request: I/O error, dev mmcblk0, sector 1572761 [ 251.983788] Buffer I/O error on device mmcblk0p1, logical block 1572745 [ 251.983788] lost page write due to I/O error on mmcblk0p1 [ 253.513336] mmcblk0: error -110 transferring data (trashed FS here)
kernel in use is 2.6.27-rc6, and this is the controller:
09:01.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 22) 09:01.2 System peripheral: Ricoh Co Ltd R5C843 MMC Host Controller (rev 12) 09:01.3 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 12) 09:01.4 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 12)
Googling around I found a patch[1] that introduced a quirk to address an off-by-one issue for the timeout value in certain controllers.
With this patch:
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index e3a8133..46899ee 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -575,7 +575,7 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_data *data) host->data = data; host->data_early = 0; - count = sdhci_calc_timeout(host, data); + count = sdhci_calc_timeout(host, data) + 1; writeb(count, host->ioaddr + SDHCI_TIMEOUT_CONTROL); if (host->flags & SDHCI_USE_DMA) I don't see timeouts anymore (just for reference, I'm not suggesting to apply it as-is).
Luca [1] http://www.gossamer-threads.com/lists/linux/kernel/937056 -- Dicono che il cane sia il miglior amico dell'uomo. Secondo me non e` vero. Quanti dei vostri amici avete fatto castrare, recentemente?
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