Hello Richard, after the short and incomplete report in #mtd here a more detailed report of what I did to trigger an assertion in ubifs: I created an ubifs image using: mkfs.ubifs -r "debian" -m 2048 -e 126976 -c 6000 "debian.ubifs" and put it on flash using: ~ # mtdinfo -u /dev/mtd0 mtd0 Name: nand-flash Type: nand Eraseblock size: 131072 bytes, 128.0 KiB Amount of eraseblocks: 4096 (536870912 bytes, 512.0 MiB) Minimum input/output unit size: 2048 bytes Sub-page size: 2048 bytes OOB size: 128 bytes Character device major/minor: 90:0 Bad blocks are allowed: true Device is writable: true Default UBI VID header offset: 2048 Default UBI data offset: 4096 Default UBI LEB size: 126976 bytes, 124.0 KiB Maximum UBI volumes count: 128 ~ # flash_erase /dev/mtd0 0 0 Erasing 128 Kibyte @ 1ff60000 -- 99 % complete flash_erase: Skipping bad block at 1ff80000 flash_erase: Skipping bad block at 1ffa0000 flash_erase: Skipping bad block at 1ffc0000 flash_erase: Skipping bad block at 1ffe0000 Erasing 128 Kibyte @ 1ffe0000 -- 100 % complete ~ # ubiformat /dev/mtd0 ubiformat: mtd0 (nand), size 536870912 bytes (512.0 MiB), 4096 eraseblocks of 131072 bytes (128.0 KiB), min. I/O size 2048 bytes libscan: scanning eraseblock 4095 -- 100 % complete ubiformat: 4092 eraseblocks are supposedly empty ubiformat: 4 bad eraseblocks found, numbers: 4092, 4093, 4094, 4095 ubiformat: formatting eraseblock 4095 -- 100 % complete ~ # ubiattach -m 0 [ 2855.917293] ubi0: default fastmap pool size: 200 [ 2855.922410] ubi0: default fastmap WL pool size: 100 [ 2855.928311] ubi0: attaching mtd0 [ 2857.929408] ubi0: scanning is finished [ 2857.986063] ubi0: attached mtd0 (name "nand-flash", size 512 MiB) [ 2857.992723] ubi0: PEB size: 131072 bytes (128 KiB), LEB size: 126976 bytes [ 2857.999992] ubi0: min./max. I/O unit sizes: 2048/2048, sub-page size 2048 [ 2858.006964] ubi0: VID header offset: 2048 (aligned 2048), data offset: 4096 [ 2858.013983] ubi0: good PEBs: 4092, bad PEBs: 4, corrupted PEBs: 0 [ 2858.020237] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 128 [ 2858.027624] ubi0: max/mean erase counter: 0/0, WL threshold: 4096, image sequence number: 1042070777 [ 2858.036916] ubi0: available PEBs: 4010, total reserved PEBs: 82, PEBs reserved for bad PEB handling: 76 [ 2858.055801] ubi0: background thread "ubi_bgt0d" started, PID 317 UBI device number 0, total 4092 LEBs (519585792 bytes, 495.5 MiB), available 4010 LEBs (509173760 bytes, 485.6 MiB), LEB size 126976 bytes (124.0 KiB) ~ # ubimkvol /dev/ubi0 -N root --maxavsize Set volume size to 509173760 Volume ID 0, size 4010 LEBs (509173760 bytes, 485.6 MiB), LEB size 126976 bytes (124.0 KiB), dynamic, name "root", alignment 1 ~ # ubiupdatevol /dev/ubi0_0 /debian.ubifs then booting into this System results in: [ 0.000000] Linux version 4.19.32... ... [ 0.000000] Kernel command line: console=ttymxc0,115200n8 ubi.mtd=0 root=ubi0:root rootfstype=ubifs rw ... [ 2.652695] nand: device found, Manufacturer ID: 0x01, Chip ID: 0xdc [ 2.659453] nand: AMD/Spansion S34ML04G2 [ 2.663687] nand: 512 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 128 [ 2.677412] Bad block table found at page 262080, version 0x01 [ 2.684913] Bad block table found at page 262016, version 0x01 [ 2.693595] 1 fixed-partitions partitions found on MTD device gpmi-nand [ 2.700543] Creating 1 MTD partitions on "gpmi-nand": [ 2.705928] 0x000000000000-0x000020000000 : "nand-flash" ... [ 5.119700] ubi0: default fastmap pool size: 200 [ 5.125013] ubi0: default fastmap WL pool size: 100 [ 5.130267] ubi0: attaching mtd0 ... [ 11.890830] ubi0: scanning is finished [ 11.960839] ubi0: attached mtd0 (name "nand-flash", size 512 MiB) [ 11.967337] ubi0: PEB size: 131072 bytes (128 KiB), LEB size: 126976 bytes [ 11.974453] ubi0: min./max. I/O unit sizes: 2048/2048, sub-page size 2048 [ 11.981465] ubi0: VID header offset: 2048 (aligned 2048), data offset: 4096 [ 11.988644] ubi0: good PEBs: 4092, bad PEBs: 4, corrupted PEBs: 0 [ 11.994957] ubi0: user volume: 1, internal volumes: 1, max. volumes count: 128 [ 12.002391] ubi0: max/mean erase counter: 1/0, WL threshold: 4096, image sequence number: 1042070777 [ 12.011737] ubi0: available PEBs: 0, total reserved PEBs: 4092, PEBs reserved for bad PEB handling: 76 [ 12.021618] ubi0: background thread "ubi_bgt0d" started, PID 100 ... [ 12.082030] UBIFS (ubi0:0): background thread "ubifs_bgt0_0" started, PID 101 [ 12.201559] UBIFS (ubi0:0): UBIFS: mounted UBI device 0, volume 0, name "root" [ 12.209370] UBIFS (ubi0:0): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes [ 12.219503] UBIFS (ubi0:0): FS size: 506507264 bytes (483 MiB, 3989 LEBs), journal size 9023488 bytes (8 MiB, 72 LEBs) [ 12.230399] UBIFS (ubi0:0): reserved for root: 0 bytes (0 KiB) [ 12.236429] UBIFS (ubi0:0): media format: w4/r0 (latest is w5/r0), UUID 57568ADB-C618-49CE-9F05-9C40E27BAB39, small LPT model [ 12.257593] VFS: Mounted root (ubifs filesystem) on device 0:14. [ 12.273445] devtmpfs: mounted [ 12.308377] Freeing unused kernel memory: 1024K [ 12.314667] Run /sbin/init as init process ... [ 57.807978] UBIFS error (ubi0:0 pid 262): ubifs_assert_failed: UBIFS assert failed: c->lhead_lnum != c->ltail_lnum, in fs/ubifs/log.c:412 [ 57.854475] UBIFS warning (ubi0:0 pid 262): ubifs_ro_mode.part.0: switched to read-only mode, error -22 [ 57.876467] CPU: 0 PID: 262 Comm: dpkg Not tainted 4.19.32-20190328-1 #1 [ 57.883251] Hardware name: Freescale i.MX6 Ultralite (Device Tree) [ 57.889527] [<80112e78>] (unwind_backtrace) from [<8010dac0>] (show_stack+0x20/0x24) [ 57.897346] [<8010dac0>] (show_stack) from [<80a06ae0>] (dump_stack+0xa8/0xdc) [ 57.904647] [<80a06ae0>] (dump_stack) from [<8042fcf0>] (ubifs_ro_mode.part.0+0x4c/0x54) [ 57.912807] [<8042fcf0>] (ubifs_ro_mode.part.0) from [<8042fdd4>] (ubifs_ro_mode+0x24/0x28) [ 57.921225] [<8042fdd4>] (ubifs_ro_mode) from [<8045044c>] (ubifs_assert_failed+0x68/0x74) [ 57.929560] [<8045044c>] (ubifs_assert_failed) from [<8043a588>] (ubifs_log_start_commit+0x31c/0x374) [ 57.938849] [<8043a588>] (ubifs_log_start_commit) from [<8043b3c4>] (do_commit+0x1d0/0x7b4) [ 57.947267] [<8043b3c4>] (do_commit) from [<8043bbf4>] (ubifs_run_commit+0xa0/0xf0) [ 57.954992] [<8043bbf4>] (ubifs_run_commit) from [<80422ce0>] (make_reservation+0x1d0/0x3d8) [ 57.963503] [<80422ce0>] (make_reservation) from [<804244cc>] (ubifs_jnl_rename+0x138/0x974) [ 57.972006] [<804244cc>] (ubifs_jnl_rename) from [<8042a784>] (do_rename+0x4ec/0x7dc) [ 57.979897] [<8042a784>] (do_rename) from [<8042ab00>] (ubifs_rename+0x8c/0x3bc) [ 57.987358] [<8042ab00>] (ubifs_rename) from [<802a7bf8>] (vfs_rename+0x3a0/0x7d4) [ 57.994996] [<802a7bf8>] (vfs_rename) from [<802aa1f8>] (do_renameat2+0x4a8/0x4e8) [ 58.002633] [<802aa1f8>] (do_renameat2) from [<802ab38c>] (sys_rename+0x34/0x3c) [ 58.010093] [<802ab38c>] (sys_rename) from [<80101000>] (ret_fast_syscall+0x0/0x28) [ 58.017799] Exception stack(0x8d947fa8 to 0x8d947ff0) [ 58.022912] 7fa0: 012aaf90 005093c8 012adc08 012adb08 f8add500 0066d000 [ 58.031151] 7fc0: 012aaf90 005093c8 0066cff4 00000026 0129c708 00509448 00509428 0000000a [ 58.039379] 7fe0: 00000026 7e83827c 76e818ab 76e53746 [ 58.249535] UBIFS error (ubi0:0 pid 262): do_commit: commit failed, error -30 ... Best regards Uwe -- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.de/ | ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/
ubiupdatevol breaks ubi?
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- Subject: ubiupdatevol breaks ubi?
- From: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
- Date: Thu, 18 Jul 2019 16:13:51 +0200
- Cc: linux-mtd@xxxxxxxxxxxxxxxxxxx, Adrian Hunter <adrian.hunter@xxxxxxxxx>, Artem Bityutskiy <dedekind1@xxxxxxxxx>
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