Hi, today I plugged in an SD card into the laptop's built-in reader on x86-64 and got "Corrupted low memory" as a result: Corrupted low memory at ffff880000001000 (1000 phys) = 22b7d67df2f6d1cf Corrupted low memory at ffff880000001008 (1008 phys) = 63848a5216b7dd95 Corrupted low memory at ffff880000001010 (1010 phys) = 330eb7ddef39e427 Corrupted low memory at ffff880000001018 (1018 phys) = 8017ac7295039bda Corrupted low memory at ffff880000001020 (1020 phys) = 8ce039eac119074f Corrupted low memory at ffff880000001028 (1028 phys) = f2de46b94adf3ef4 Corrupted low memory at ffff880000001030 (1030 phys) = d1d3f48600fff7be Corrupted low memory at ffff880000001038 (1038 phys) = 3f7e796b65efa819 Corrupted low memory at ffff880000001040 (1040 phys) = 79c63b3920597681 Corrupted low memory at ffff880000001048 (1048 phys) = 608c93712487996f Corrupted low memory at ffff880000001050 (1050 phys) = 1f5354ad4f729cf1 ... Corrupted low memory at ffff88000000fff0 (fff0 phys) = e1e41c03059ba547 Corrupted low memory at ffff88000000fff8 (fff8 phys) = e20f4297ab84fbe The reader: 02:00.0 System peripheral [0880]: Ricoh Co Ltd MMC/SD Host Controller [1180:e822] (rev 07) MMC complained upon insertion (this happens sometimes and can be fixed by replugging): mmc0: new high speed SDHC card at address e624 mmcblk0: mmc0:e624 SU16G 14.8 GiB mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00 mmc0: tried to reset card mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00 mmcblk0: retrying using single block read mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0 blk_update_request: I/O error, dev mmcblk0, sector 0 mmcblk0: error -84 transferring data, sector 1, nr 7, cmd response 0x900, card status 0x0 blk_update_request: I/O error, dev mmcblk0, sector 1 mmcblk0: error -84 transferring data, sector 2, nr 6, cmd response 0x900, card status 0x0 blk_update_request: I/O error, dev mmcblk0, sector 2 mmcblk0: error -84 transferring data, sector 3, nr 5, cmd response 0x900, card status 0x0 blk_update_request: I/O error, dev mmcblk0, sector 3 mmcblk0: error -84 transferring data, sector 4, nr 4, cmd response 0x900, card status 0x0 blk_update_request: I/O error, dev mmcblk0, sector 4 mmcblk0: error -84 transferring data, sector 5, nr 3, cmd response 0x900, card status 0x0 blk_update_request: I/O error, dev mmcblk0, sector 5 mmcblk0: error -84 transferring data, sector 6, nr 2, cmd response 0x900, card status 0x0 blk_update_request: I/O error, dev mmcblk0, sector 6 mmcblk0: error -84 transferring data, sector 7, nr 1, cmd response 0x900, card status 0x0 blk_update_request: I/O error, dev mmcblk0, sector 7 Buffer I/O error on dev mmcblk0, logical block 0, async page read mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00 mmcblk0: retrying using single block read mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0 blk_update_request: I/O error, dev mmcblk0, sector 0 mmcblk0: error -84 transferring data, sector 1, nr 7, cmd response 0x900, card status 0x0 blk_update_request: I/O error, dev mmcblk0, sector 1 mmcblk0: error -84 transferring data, sector 2, nr 6, cmd response 0x900, card status 0x0 mmcblk0: error -84 transferring data, sector 3, nr 5, cmd response 0x900, card status 0x0 mmcblk0: error -84 transferring data, sector 4, nr 4, cmd response 0x900, card status 0x0 mmcblk0: error -84 transferring data, sector 5, nr 3, cmd response 0x900, card status 0x0 mmcblk0: error -84 transferring data, sector 6, nr 2, cmd response 0x900, card status 0x0 mmcblk0: error -84 transferring data, sector 7, nr 1, cmd response 0x900, card status 0x0 Buffer I/O error on dev mmcblk0, logical block 0, async page read mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00 mmcblk0: retrying using single block read mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0 mmcblk0: error -84 transferring data, sector 1, nr 7, cmd response 0x900, card status 0x0 mmcblk0: error -84 transferring data, sector 2, nr 6, cmd response 0x900, card status 0x0 mmcblk0: error -84 transferring data, sector 3, nr 5, cmd response 0x900, card status 0x0 mmcblk0: error -84 transferring data, sector 4, nr 4, cmd response 0x900, card status 0x0 mmcblk0: error -84 transferring data, sector 5, nr 3, cmd response 0x900, card status 0x0 mmcblk0: error -84 transferring data, sector 6, nr 2, cmd response 0x900, card status 0x0 mmcblk0: error -84 transferring data, sector 7, nr 1, cmd response 0x900, card status 0x0 Buffer I/O error on dev mmcblk0, logical block 0, async page read ldm_validate_partition_table(): Disk read failed. mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00 mmcblk0: retrying using single block read mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0 mmcblk0: error -84 transferring data, sector 1, nr 7, cmd response 0x900, card status 0x0 mmcblk0: error -84 transferring data, sector 2, nr 6, cmd response 0x900, card status 0x0 mmcblk0: error -84 transferring data, sector 3, nr 5, cmd response 0x900, card status 0x0 mmcblk0: error -84 transferring data, sector 4, nr 4, cmd response 0x900, card status 0x0 mmcblk0: error -84 transferring data, sector 6, nr 2, cmd response 0x900, card status 0x0 mmc0: tried to reset card Buffer I/O error on dev mmcblk0, logical block 0, async page read mmcblk0: unable to read partition table Then SWIOTLB complained a lot: swiotlb_tbl_map_single: 555 callbacks suppressed sdhci-pci 0000:02:00.0: swiotlb buffer is full (sz: 65536 bytes) DMA: Out of SW-IOMMU space for 65536 bytes at device 0000:02:00.0 sdhci-pci 0000:02:00.0: swiotlb buffer is full (sz: 65536 bytes) DMA: Out of SW-IOMMU space for 65536 bytes at device 0000:02:00.0 This SWIOTLB splat is intermixed with WARNINGs from sdhci: WARNING: CPU: 0 PID: 8669 at drivers/mmc/host/sdhci.c:857 sdhci_prepare_data+0x8ec/0x900 [sdhci]() There is a lot of them. Full log of these: http://www.fi.muni.cz/~xslaby/sklad/panics/sdhci.txt I checked the DMA mappings in sdhci.c, but they seem to be OK: sg_count = dma_map_sg(...); ... if (sg_count == 0) return -EINVAL; AND host->align_addr = dma_map_single(mmc_dev(host->mmc), ...); if (dma_mapping_error(mmc_dev(host->mmc), host->align_addr)) goto fail; Any ideas? thanks, -- js suse labs -- 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
