Thanks; that's the approach I'm going with. On Tue, Jul 26, 2016 at 11:30 PM, William Hermans <yyrk...@gmail.com> wrote:
> No idea what the problem might be, but I'd probably try dd instead. > > On Mon, Jul 25, 2016 at 10:43 AM, pabigot <pabi...@gmail.com> wrote: > >> Using a script derived from init-eMMC-flasher-v3.sh to rsync from a >> loopback-mounted file system to a newly created ext4 file system on the >> eMMC I periodically (~ 5% of attempts) get the failures below. This has >> been replicated with kernels 4.1.16-ti-rt-r44 and 4.4.9-ti-r25 (both from >> pre-build console images), and on multiple BeagleBone Black revision C >> devices. The effect is that the resulting partition has nulls in some >> files where there should be data. >> >> Note that this is writing to the eMMC, not to an SD card, and the script >> process is running as init. (The source image is sometimes on an SD card, >> and sometimes on an NFS-mounted root partition.) >> >> The behavior and context is very much like the following topic but the >> kernel is much more recent and the device is being fed by a 5VDC 10A supply >> so should not be due to voltage sags. >> >> https://groups.google.com/d/topic/beagleboard/C__ixv3bBBI/discussion >> >> Can anybody provide a clue as to why this might happen, and if something >> can be done to prevent it? >> >> Thanks. >> >> Peter >> >> Captured diagnostics over serial console running 4.4.9-ti-r25: >> >> ----------------------------- >> Copying: /tmp/mnt/root -> /dev/mmcblk1p1 >> [ 33.839562] EXT4-fs (mmcblk1p1): mounted filesystem with ordered data >> mode. Opts: (null) >> rsync: /tmp/mnt/root -> /tmp/rootfs/ >> [ 142.267382] mmcqd/1: page allocation failure: order:2, mode:0x208c020 >> [ 142.273958] CPU: 0 PID: 77 Comm: mmcqd/1 Not tainted 4.4.9-ti-r25 #1 >> [ 142.280338] Hardware name: Generic AM33XX (Flattened Device Tree) >> [ 142.286494] [<c0015b61>] (unwind_backtrace) from [<c00123f5>] >> (show_stack+0x11/0x14) >> [ 142.294286] [<c00123f5>] (show_stack) from [<c03c9023>] >> (dump_stack+0x73/0x80) >> [ 142.301555] [<c03c9023>] (dump_stack) from [<c00f79d1>] >> (warn_alloc_failed+0xb5/0xf0) >> [ 142.309427] [<c00f79d1>] (warn_alloc_failed) from [<c00f9fed>] >> (__alloc_pages_nodemask+0x5ed/0x748) >> [ 142.318516] [<c00f9fed>] (__alloc_pages_nodemask) from [<c00fa2a9>] >> (alloc_kmem_pages+0x15/0x78) >> [ 142.327349] [<c00fa2a9>] (alloc_kmem_pages) from [<c010d64f>] >> (kmalloc_order+0x13/0x20) >> [ 142.335392] [<c010d64f>] (kmalloc_order) from [<c010d675>] >> (kmalloc_order_trace+0x19/0x94) >> [ 142.343699] [<c010d675>] (kmalloc_order_trace) from [<c041a9d3>] >> (edma_prep_slave_sg+0x7b/0x258) >> [ 142.352528] [<c041a9d3>] (edma_prep_slave_sg) from [<c05b6417>] >> (omap_hsmmc_request+0x333/0x3ec) >> [ 142.361359] [<c05b6417>] (omap_hsmmc_request) from [<c05a428b>] >> (mmc_start_request+0xcb/0x1b0) >> [ 142.370013] [<c05a428b>] (mmc_start_request) from [<c05a4f93>] >> (mmc_start_req+0x203/0x2d4) >> [ 142.378323] [<c05a4f93>] (mmc_start_req) from [<c05b09c9>] >> (mmc_blk_issue_rw_rq+0x99/0x7f8) >> [ 142.386715] [<c05b09c9>] (mmc_blk_issue_rw_rq) from [<c05b125f>] >> (mmc_blk_issue_rq+0x137/0x36c) >> [ 142.395455] [<c05b125f>] (mmc_blk_issue_rq) from [<c05b2723>] >> (mmc_queue_thread+0x9f/0x148) >> [ 142.403850] [<c05b2723>] (mmc_queue_thread) from [<c0048383>] >> (kthread+0xaf/0xc4) >> [ 142.411375] [<c0048383>] (kthread) from [<c000ed15>] >> (ret_from_fork+0x11/0x1c) >> [ 142.418678] Mem-Info: >> [ 142.420972] active_anon:6521 inactive_anon:0 isolated_anon:0 >> [ 142.420972] active_file:13169 inactive_file:90132 isolated_file:0 >> [ 142.420972] unevictable:0 dirty:4997 writeback:5105 unstable:0 >> [ 142.420972] slab_reclaimable:12884 slab_unreclaimable:1371 >> [ 142.420972] mapped:687 shmem:0 pagetables:102 bounce:0 >> [ 142.420972] free:1086 free_pcp:51 free_cma:0 >> [ 142.454003] Normal free:4344kB min:2836kB low:3544kB high:4252kB >> active_anon:26084kB inactive_anon:0kB active_file:52676kB >> inactive_file:360528kB unevictable:0kB isolated(anon):0kB >> isolated(file):0kB present:522240kB managed:503900kB mlocked:0kB >> dirty:19988kB writeback:20420kB mapped:2748kB shmem:0kB >> slab_reclaimable:51536kB slab_unreclaimable:5484kB kernel_stack:584kB >> pagetables:408kB unstable:0kB bounce:0kB free_pcp:204kB local_pcp:204kB >> free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no >> [ 142.499136] lowmem_reserve[]: 0 0 0 >> [ 142.502684] Normal: 86*4kB (UME) 497*8kB (UE) 0*16kB 0*32kB 0*64kB >> 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB 0*8192kB = 4320kB >> [ 142.515179] 103305 total pagecache pages >> [ 142.519139] 0 pages in swap cache >> [ 142.522480] Swap cache stats: add 0, delete 0, find 0/0 >> [ 142.527738] Free swap = 0kB >> [ 142.530641] Total swap = 0kB >> [ 142.533541] 130560 pages RAM >> [ 142.536429] 0 pages HighMem/MovableOnly >> [ 142.540299] 4585 pages reserved >> [ 142.543464] 6144 pages cma reserved >> [ 142.546989] edma 49000000.edma: edma_prep_slave_sg: Failed to allocate >> a descriptor >> [ 142.554696] omap_hsmmc 481d8000.mmc: prep_slave_sg() failed >> [ 142.560307] omap_hsmmc 481d8000.mmc: MMC start dma failure >> [ 142.711393] mmcblk1: unknown error -1 sending read/write command, card >> status 0x900 >> [ 142.719459] blk_update_request: I/O error, dev mmcblk1, sector 1007160 >> [ 142.726072] EXT4-fs warning (device mmcblk1p1): ext4_end_bio:329: I/O >> error -5 writing to inode 16993 (offset 0 size 4096 starting block 125896) >> [ 142.739111] Buffer I/O error on device mmcblk1p1, logical block 125639 >> [ 142.745755] blk_update_request: I/O error, dev mmcblk1, sector 1007168 >> [ 142.752358] blk_update_request: I/O error, dev mmcblk1, sector 1007176 >> [ 142.758955] blk_update_request: I/O error, dev mmcblk1, sector 1007184 >> [ 142.765550] blk_update_request: I/O error, dev mmcblk1, sector 1007192 >> [ 142.772145] blk_update_request: I/O error, dev mmcblk1, sector 1007200 >> [ 142.778740] blk_update_request: I/O error, dev mmcblk1, sector 1007208 >> [ 142.785334] blk_update_request: I/O error, dev mmcblk1, sector 1007216 >> [ 142.791929] blk_update_request: I/O error, dev mmcblk1, sector 1007224 >> [ 142.798502] EXT4-fs warning (device mmcblk1p1): ext4_end_bio:329: I/O >> error -5 writing to inode 16991 (offset 0 size 32768 starting block 125904) >> [ 142.811629] Buffer I/O error on device mmcblk1p1, logical block 125640 >> [ 142.818215] Buffer I/O error on device mmcblk1p1, logical block 125641 >> [ 142.824790] Buffer I/O error on device mmcblk1p1, logical block 125642 >> [ 142.831362] Buffer I/O error on device mmcblk1p1, logical block 125643 >> [ 142.837934] Buffer I/O error on device mmcblk1p1, logical block 125644 >> [ 142.844506] Buffer I/O error on device mmcblk1p1, logical block 125645 >> [ 142.851077] Buffer I/O error on device mmcblk1p1, logical block 125646 >> [ 142.857650] Buffer I/O error on device mmcblk1p1, logical block 125647 >> [ 142.864254] blk_update_request: I/O error, dev mmcblk1, sector 1007232 >> [ 142.870902] EXT4-fs warning (device mmcblk1p1): ext4_end_bio:329: I/O >> error -5 writing to inode 16992 (offset 0 size 16384 starting block 125908) >> [ 142.884038] Buffer I/O error on device mmcblk1p1, logical block 125648 >> [ 142.891137] EXT4-fs warning (device mmcblk1p1): ext4_end_bio:329: I/O >> error -5 writing to inode 16994 (offset 0 size 81920 starting block 125928) >> [ 142.904526] EXT4-fs warning (device mmcblk1p1): ext4_end_bio:329: I/O >> error -5 writing to inode 16995 (offset 0 size 40960 starting block 125938) >> [ 142.917813] EXT4-fs warning (device mmcblk1p1): ext4_end_bio:329: I/O >> error -5 writing to inode 16996 (offset 0 size 28672 starting block 125945) >> [ 142.931049] EXT4-fs warning (device mmcblk1p1): ext4_end_bio:329: I/O >> error -5 writing to inode 16997 (offset 0 size 20480 starting block 125950) >> [ 142.944969] EXT4-fs warning (device mmcblk1p1): ext4_end_bio:329: I/O >> error -5 writing to inode 16998 (offset 0 size 184320 starting block 125995) >> [ 142.958590] EXT4-fs warning (device mmcblk1p1): ext4_end_bio:329: I/O >> error -5 writing to inode 16999 (offset 0 size 86016 starting block 126016) >> [ 142.972043] EXT4-fs warning (device mmcblk1p1): ext4_end_bio:329: I/O >> error -5 writing to inode 17000 (offset 0 size 86016 starting block 126037) >> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to the Google Groups >> "BeagleBoard" group. >> To unsubscribe from this group and stop receiving emails 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