Hello, I need some help to understand what is wrong, maybe someone can help me. I'm running an OMAP3-based board with a OneNAND from Numonyx, the problem is some mtd tests fails. An example is the mtd_pagetest, the erase test fails. [ 937.885925] mtd_pagetest: erasetest [ 937.889434] mtd_pagetest: erasing block 0 [ 937.895721] mtd_pagetest: writing 1st page of block 0 [ 937.901550] mtd_pagetest: erasing block 0 [ 937.907623] mtd_pagetest: reading 1st page of block 0 [ 937.912994] mtd_pagetest: verifying 1st page of block 0 is all 0xff [ 937.919342] mtd_pagetest: verifying all 0xff failed at 0 [ 937.924713] mtd_pagetest: finished with 1 errors If I read the mtd contents # mtd_debug read /dev/mtd4 0 1024 output.log # hexdump output.log 0000000 1caf ecfa 976b aa81 700a 9ce1 5427 32eb looks like the mtd partition it's not erased, but If I use the flash_eraseall tool erases the flash completely without problem # flash_eraseall /dev/mtd4 Erasing 256 Kibyte @ fa80000 -- 100 % complete. # mtd_debug read /dev/mtd4 0 1024 output.log Copied 1024 bytes from address 0x00000000 in flash to file.log # hexdump output.log 0000000 ffff ffff ffff ffff ffff ffff ffff ffff * 0000400 So I don't understand why this test fails. Any idea what might be wrong ? Here the full log [ 775.590270] ================================================= [ 775.596160] mtd_pagetest: MTD device: 4 [ 775.603851] mtd_pagetest: MTD device size 262668288, eraseblock size 262144, page size 4096, count of eraseblocks 1002, pages per eraseblock 64, OOB size 64 [ 775.618408] mtd_pagetest: scanning for bad eraseblocks [ 775.624420] mtd_pagetest: scanned 1002 eraseblocks, 0 are bad [ 775.630218] mtd_pagetest: erasing whole device [ 777.486846] mtd_pagetest: erased 1002 eraseblocks [ 777.491638] mtd_pagetest: writing whole device [ 777.531585] mtd_pagetest: written up to eraseblock 0 [ 786.519378] mtd_pagetest: written up to eraseblock 256 [ 795.505706] mtd_pagetest: written up to eraseblock 512 [ 804.488769] mtd_pagetest: written up to eraseblock 768 [ 812.668182] mtd_pagetest: written 1002 eraseblocks [ 812.673126] mtd_pagetest: verifying all eraseblocks [ 812.803375] mtd_pagetest: verified up to eraseblock 0 [ 844.772460] mtd_pagetest: verified up to eraseblock 256 [ 876.734741] mtd_pagetest: verified up to eraseblock 512 [ 908.696838] mtd_pagetest: verified up to eraseblock 768 [ 937.791229] mtd_pagetest: verified 1002 eraseblocks [ 937.796234] mtd_pagetest: crosstest [ 937.800903] mtd_pagetest: reading page at 0x0 [ 937.805877] mtd_pagetest: reading page at 0xfa7f000 [ 937.811096] mtd_pagetest: reading page at 0x0 [ 937.816070] mtd_pagetest: verifying pages read at 0x0 match [ 937.821838] mtd_pagetest: crosstest ok [ 937.825622] mtd_pagetest: erasecrosstest [ 937.829589] mtd_pagetest: erasing block 0 [ 937.835906] mtd_pagetest: writing 1st page of block 0 [ 937.841552] mtd_pagetest: reading 1st page of block 0 [ 937.847198] mtd_pagetest: verifying 1st page of block 0 [ 937.852600] mtd_pagetest: erasing block 0 [ 937.858734] mtd_pagetest: writing 1st page of block 0 [ 937.864379] mtd_pagetest: erasing block 1001 [ 937.870788] mtd_pagetest: reading 1st page of block 0 [ 937.876342] mtd_pagetest: verifying 1st page of block 0 [ 937.881652] mtd_pagetest: erasecrosstest ok [ 937.885925] mtd_pagetest: erasetest [ 937.889434] mtd_pagetest: erasing block 0 [ 937.895721] mtd_pagetest: writing 1st page of block 0 [ 937.901550] mtd_pagetest: erasing block 0 [ 937.907623] mtd_pagetest: reading 1st page of block 0 [ 937.912994] mtd_pagetest: verifying 1st page of block 0 is all 0xff [ 937.919342] mtd_pagetest: verifying all 0xff failed at 0 [ 937.924713] mtd_pagetest: finished with 1 errors [ 937.929870] ================================================= Thanks in advance, Enric -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
