Hi folks, This now started to happen on my development PC. I'm running v3.8-rc4 with my gadget-specific patches (nothing on the Host side, no gadget code is running here). Below you will find dmesg of the failure which just triggered. Looks like it's related to the async function call problem which is going on, just thought I'd report anyway ;-) [632211.063220] usb 1-4: USB disconnect, device number 44 [632213.132568] usb 1-4: new high-speed USB device number 45 using ehci-pci [632213.249429] usb 1-4: New USB device found, idVendor=0951, idProduct=1607 [632213.249434] usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [632213.249438] usb 1-4: Product: DataTraveler 2.0 [632213.249441] usb 1-4: Manufacturer: Kingston [632213.249444] usb 1-4: SerialNumber: 001478090230A9105FFF0014 [632213.250497] scsi81 : usb-storage 1-4:1.0 [632214.251418] scsi 81:0:0:0: Direct-Access Kingston DataTraveler 2.0 1.00 PQ: 0 ANSI: 2 [632214.252774] sd 81:0:0:0: Attached scsi generic sg4 type 0 [632214.253281] sd 81:0:0:0: [sdd] 31506432 512-byte logical blocks: (16.1 GB/15.0 GiB) [632214.253995] sd 81:0:0:0: [sdd] Write Protect is off [632214.254000] sd 81:0:0:0: [sdd] Mode Sense: 23 00 00 00 [632214.254768] sd 81:0:0:0: [sdd] No Caching mode page present [632214.254774] sd 81:0:0:0: [sdd] Assuming drive cache: write through [632214.258429] sd 81:0:0:0: [sdd] No Caching mode page present [632214.258434] sd 81:0:0:0: [sdd] Assuming drive cache: write through [632214.259066] kworker/u:3: page allocation failure: order:4, mode:0x2000d0 [632214.259071] Pid: 15804, comm: kworker/u:3 Tainted: G W 3.8.0-rc4+ #206 [632214.259073] Call Trace: [632214.259083] [<ffffffff810d02a8>] ? warn_alloc_failed+0x116/0x128 [632214.259088] [<ffffffff810d31d9>] ? __alloc_pages_nodemask+0x6b5/0x751 [632214.259096] [<ffffffff81106297>] ? kmem_getpages+0x59/0x129 [632214.259100] [<ffffffff81106b88>] ? fallback_alloc+0x12f/0x1fc [632214.259105] [<ffffffff811071c7>] ? kmem_cache_alloc_trace+0x87/0xf6 [632214.259111] [<ffffffff812a633c>] ? check_partition+0x28/0x1ac [632214.259116] [<ffffffff812a60bd>] ? rescan_partitions+0xa4/0x27c [632214.259121] [<ffffffff8113bcfb>] ? __blkdev_get+0x1ac/0x3d2 [632214.259125] [<ffffffff8113c0b1>] ? blkdev_get+0x190/0x2d8 [632214.259130] [<ffffffff8113b23f>] ? bdget+0x3b/0x12b [632214.259173] [<ffffffff812a41a6>] ? add_disk+0x268/0x3e2 [632214.259178] [<ffffffff81382f3d>] ? sd_probe_async+0x11b/0x1cc [632214.259184] [<ffffffff81055f74>] ? async_run_entry_fn+0xa2/0x173 [632214.259189] [<ffffffff81055ed2>] ? async_schedule+0x15/0x15 [632214.259194] [<ffffffff8104bb79>] ? process_one_work+0x172/0x2ca [632214.259199] [<ffffffff81055ed2>] ? async_schedule+0x15/0x15 [632214.259203] [<ffffffff8104bfa4>] ? worker_thread+0x11d/0x1b7 [632214.259207] [<ffffffff8104be87>] ? rescuer_thread+0x18c/0x18c [632214.259212] [<ffffffff81050421>] ? kthread+0x86/0x8e [632214.259218] [<ffffffff8105039b>] ? __kthread_parkme+0x60/0x60 [632214.259233] [<ffffffff814a306c>] ? ret_from_fork+0x7c/0xb0 [632214.259241] [<ffffffff8105039b>] ? __kthread_parkme+0x60/0x60 [632214.259244] Mem-Info: [632214.259246] Node 0 DMA per-cpu: [632214.259249] CPU 0: hi: 0, btch: 1 usd: 0 [632214.259252] CPU 1: hi: 0, btch: 1 usd: 0 [632214.259254] CPU 2: hi: 0, btch: 1 usd: 0 [632214.259256] CPU 3: hi: 0, btch: 1 usd: 0 [632214.259258] CPU 4: hi: 0, btch: 1 usd: 0 [632214.259261] CPU 5: hi: 0, btch: 1 usd: 0 [632214.259263] CPU 6: hi: 0, btch: 1 usd: 0 [632214.259269] CPU 7: hi: 0, btch: 1 usd: 0 [632214.259276] Node 0 DMA32 per-cpu: [632214.259284] CPU 0: hi: 186, btch: 31 usd: 0 [632214.259286] CPU 1: hi: 186, btch: 31 usd: 0 [632214.259288] CPU 2: hi: 186, btch: 31 usd: 0 [632214.259291] CPU 3: hi: 186, btch: 31 usd: 0 [632214.259293] CPU 4: hi: 186, btch: 31 usd: 0 [632214.259295] CPU 5: hi: 186, btch: 31 usd: 0 [632214.259297] CPU 6: hi: 186, btch: 31 usd: 0 [632214.259299] CPU 7: hi: 186, btch: 31 usd: 0 [632214.259301] Node 0 Normal per-cpu: [632214.259311] CPU 0: hi: 186, btch: 31 usd: 0 [632214.259319] CPU 1: hi: 186, btch: 31 usd: 0 [632214.259324] CPU 2: hi: 186, btch: 31 usd: 0 [632214.259326] CPU 3: hi: 186, btch: 31 usd: 0 [632214.259328] CPU 4: hi: 186, btch: 31 usd: 0 [632214.259330] CPU 5: hi: 186, btch: 31 usd: 0 [632214.259333] CPU 6: hi: 186, btch: 31 usd: 0 [632214.259335] CPU 7: hi: 186, btch: 31 usd: 0 [632214.259342] active_anon:8098 inactive_anon:16550 isolated_anon:0 [632214.259342] active_file:400259 inactive_file:523089 isolated_file:0 [632214.259342] unevictable:0 dirty:22 writeback:0 unstable:0 [632214.259342] free:77221 slab_reclaimable:474822 slab_unreclaimable:12466 [632214.259342] mapped:4599 shmem:33 pagetables:2364 bounce:0 [632214.259342] free_cma:0 [632214.259348] Node 0 DMA free:15904kB min:168kB low:208kB high:252kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15680kB managed:15904kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes [632214.259362] lowmem_reserve[]: 0 3012 6042 6042 [632214.259377] Node 0 DMA32 free:160256kB min:33604kB low:42004kB high:50404kB active_anon:0kB inactive_anon:3964kB active_file:837628kB inactive_file:1170824kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:3084512kB managed:3051044kB mlocked:0kB dirty:0kB writeback:0kB mapped:3180kB shmem:0kB slab_reclaimable:870264kB slab_unreclaimable:9184kB kernel_stack:64kB pagetables:336kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [632214.259387] lowmem_reserve[]: 0 0 3030 3030 [632214.259391] Node 0 Normal free:132724kB min:33804kB low:42252kB high:50704kB active_anon:32392kB inactive_anon:62236kB active_file:763408kB inactive_file:921532kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:3102720kB managed:3055508kB mlocked:0kB dirty:88kB writeback:0kB mapped:15216kB shmem:132kB slab_reclaimable:1029024kB slab_unreclaimable:40680kB kernel_stack:2664kB pagetables:9120kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [632214.259400] lowmem_reserve[]: 0 0 0 0 [632214.259405] Node 0 DMA: 0*4kB 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (R) 3*4096kB (M) = 15904kB [632214.259430] Node 0 DMA32: 19896*4kB (UEM) 8401*8kB (UEM) 613*16kB (UEM) 0*32kB 1*64kB (R) 1*128kB (R) 1*256kB (R) 1*512kB (R) 1*1024kB (R) 1*2048kB (R) 0*4096kB = 160632kB [632214.259448] Node 0 Normal: 15176*4kB (UEM) 8586*8kB (UEM) 114*16kB (UEM) 2*32kB (R) 3*64kB (R) 0*128kB 1*256kB (R) 1*512kB (R) 0*1024kB 1*2048kB (R) 0*4096kB = 134288kB [632214.259466] 925472 total pagecache pages [632214.259468] 2094 pages in swap cache [632214.259471] Swap cache stats: add 99298, delete 97204, find 289450/292924 [632214.259473] Free swap = 11971828kB [632214.259475] Total swap = 12037116kB [632214.298163] 1572848 pages RAM [632214.298166] 41638 pages reserved [632214.298168] 1050385 pages shared [632214.298169] 783468 pages non-shared [632214.298173] SLAB: Unable to allocate memory on node 0 (gfp=0xd0) [632214.298176] cache: size-65536, object size: 65536, order: 4 [632214.298182] node 0: slabs: 42/42, objs: 42/42, free: 0 [632214.300806] sd 81:0:0:0: [sdd] No Caching mode page present [632214.300812] sd 81:0:0:0: [sdd] Assuming drive cache: write through [632214.300817] sd 81:0:0:0: [sdd] Attached SCSI removable disk -- balbi
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