From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from va3ehsobe002.messaging.microsoft.com ([216.32.180.12] helo=va3outboundpool.messaging.microsoft.com) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1Scupd-0005Zj-T6 for linux-mtd@lists.infradead.org; Fri, 08 Jun 2012 08:46:10 +0000 Message-ID: <4FD1BD03.60800@freescale.com> Date: Fri, 8 Jun 2012 16:51:15 +0800 From: Huang Shijie MIME-Version: 1.0 To: "dedekind1@gmail.com" , "linux-mtd@lists.infradead.org" , Huang Shijie Subject: Is there a bug in the UBIFS? Content-Type: text/plain; charset="GB2312" Content-Transfer-Encoding: 7bit List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hi Artem: I tested the GPMI driver in imx28 board with Linus's latest tree. The gpmi-nand driver passed the mtd_speedtest.ko and mtd_stresstest.ko tests. But when I test the UBIFS, i meet a bug: ----------------------------------------------------------------------------------------------------- root@freescale ~$ ubiattach /dev/ubi_ctrl -m 1 [ 3243.960000] UBI: attaching mtd1 to ubi0 [ 3243.960000] UBI DBG (pid 379): ubi_attach_mtd_dev: sizeof(struct ubi_ainf_peb) 48 [ 3243.970000] UBI DBG (pid 379): ubi_attach_mtd_dev: sizeof(struct ubi_wl_entry) 20 [ 3243.980000] UBI DBG (pid 379): io_init: min_io_size 4096 [ 3243.980000] UBI DBG (pid 379): io_init: max_write_size 4096 [ 3243.990000] UBI DBG (pid 379): io_init: hdrs_min_io_size 4096 [ 3243.990000] UBI DBG (pid 379): io_init: ec_hdr_alsize 4096 [ 3244.000000] UBI DBG (pid 379): io_init: vid_hdr_alsize 4096 [ 3244.010000] UBI DBG (pid 379): io_init: vid_hdr_offset 4096 [ 3244.010000] UBI DBG (pid 379): io_init: vid_hdr_aloffset 4096 [ 3244.020000] UBI DBG (pid 379): io_init: vid_hdr_shift 0 [ 3244.020000] UBI DBG (pid 379): io_init: leb_start 8192 [ 3244.030000] UBI DBG (pid 379): io_init: max_erroneous 20 [ 3244.030000] UBI: physical eraseblock size: 524288 bytes (512 KiB) [ 3244.040000] UBI: logical eraseblock size: 516096 bytes [ 3244.050000] UBI: smallest flash I/O unit: 4096 [ 3244.050000] UBI: VID header offset: 4096 (aligned 4096) [ 3244.060000] UBI: data offset: 8192 [ 3244.390000] UBI DBG (pid 379): scan_all: scanning is finished [ 3244.390000] UBI: empty MTD device detected [ 3244.400000] UBI: max. sequence number: 0 [ 3244.400000] UBI: create volume table (copy #1) [ 3244.430000] UBI: create volume table (copy #2) [ 3244.500000] UBI: attached mtd1 to ubi0 [ 3244.500000] UBI: MTD device name: "Kernel" [ 3244.500000] UBI: MTD device size: 100 MiB [ 3244.510000] UBI: number of good PEBs: 200 [ 3244.510000] UBI: number of bad PEBs: 0 [ 3244.520000] UBI: number of corrupted PEBs: 0 [ 3244.520000] UBI: max. allowed volumes: 128 [ 3244.530000] UBI: wear-leveling threshold: 4096 [ 3244.530000] UBI: number of internal volumes: 1 [ 3244.540000] UBI: number of user volumes: 0 [ 3244.540000] UBI: available PEBs: 194 [ 3244.550000] UBI: total number of reserved PEBs: 6 [ 3244.550000] UBI: number of PEBs reserved for bad PEB handling: 2 [ 3244.560000] UBI: max/mean erase counter: 0/0 [ 3244.560000] UBI: image sequence number: -1339417594 [ 3244.570000] UBI: background thread "ubi_bgt0d" started, PID 382 UBI device number 0, total 200 LEBs (103219200 bytes, 98.4 MiB), available 194 LEBs (100122624 bytes, 95.5 MiB), LEB size 516096 bytes (504.0 KiB) root@freescale ~$ ubimkvol /dev/ubi /dev/ubi0 /dev/ubi_ctrl root@freescale ~$ ubimkvol /dev/ubi0 -N test -m Set volume size to 100122624 Volume ID 0, size 194 LEBs (100122624 bytes, 95.5 MiB), LEB size 516096 bytes (504.0 KiB), dynamic, name "test", alignment 1 root@freescale ~$ mount -t ubifs ubi0:test tmp [ 3526.770000] UBIFS: default file-system created [ 3526.780000] UBIFS DBG (pid 391): ubifs_bg_thread: background thread "ubifs_bgt0_0" started, PID 391 [ 3526.960000] UBIFS error (pid 389): ubifs_scan: garbage [ 3527.140000] UBIFS error (pid 389): ubifs_recover_master_node: failed to recover master node [ 3527.150000] UBIFS DBG (pid 391): ubifs_bg_thread: background thread "ubifs_bgt0_0" stops mount: mounting ubi0:test on tmp failed: Invalid argument ------------------------------------------------------------------------------------------------------ I am not sure whether it's a UBIFS's bug, or the gpmi-nand's bug. If you think it's not the UBIFS's bug, please tell me. Anyway, i am debugging it now. Best Regards Huang Shijie