From mboxrd@z Thu Jan 1 00:00:00 1970 From: Baruch Siach Subject: alloc_tty_driver fails with ENOMEM Date: Tue, 6 Oct 2015 09:44:24 +0300 Message-ID: <20151006064424.GD2472@tarshish> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline Sender: linux-usb-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: linux-serial-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, debian-kernel-0aAXYlwwYIJuHlm7Suoebg@public.gmane.org List-Id: linux-serial@vger.kernel.org Hi linux-usb list, Since upgrading to kernel version from 4.1.x to 4.2.1 on Debian testing I am getting on my PC the following usbserial module init failure when connecting my PC to the i.MX6 SabreSD FTDI USB/serial connector: [39987.092021] usb 1-5.1: new full-speed USB device number 4 using ehci-pci [39987.190805] usb 1-5.1: New USB device found, idVendor=0403, idProduct=6001 [39987.190810] usb 1-5.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [39987.190813] usb 1-5.1: Product: FT232R USB UART [39987.190817] usb 1-5.1: Manufacturer: FTDI [39987.190820] usb 1-5.1: SerialNumber: A903PDKT [39989.127918] systemd-udevd: page allocation failure: order:4, mode:0x2040d0 [39989.127923] CPU: 0 PID: 5856 Comm: systemd-udevd Not tainted 4.2.0-1-amd64 #1 Debian 4.2.1-2 [39989.127925] Hardware name: Gigabyte Technology Co., Ltd. EP45-DS3/EP45-DS3, BIOS F5 06/18/2008 [39989.127928] 0000000000000000 0000000000000004 ffffffff81548756 00000000002040d0 [39989.127931] ffffffff8115266f ffff88007feddb00 0000000000000000 0000000000000001 [39989.127934] 0000000000000004 0000000000000040 ffff8800793ce7c0 00000000002040d0 [39989.127937] Call Trace: [39989.127945] [] ? dump_stack+0x40/0x50 [39989.127951] [] ? warn_alloc_failed+0xcf/0x130 [39989.127954] [] ? __alloc_pages_nodemask+0x2b4/0x9e0 [39989.127959] [] ? kmem_getpages+0x61/0x110 [39989.127961] [] ? fallback_alloc+0x1af/0x1f0 [39989.127966] [] ? __tty_alloc_driver+0x90/0x150 [39989.127968] [] ? __kmalloc+0x2c6/0x490 [39989.127970] [] ? __tty_alloc_driver+0x90/0x150 [39989.127973] [] ? __tty_alloc_driver+0x90/0x150 [39989.127975] [] ? 0xffffffffa080d000 [39989.127980] [] ? usb_serial_init+0x14/0x1000 [usbserial] [39989.127984] [] ? do_one_initcall+0xce/0x200 [39989.127986] [] ? do_init_module+0x5a/0x1e0 [39989.127989] [] ? load_module+0x21a4/0x2500 [39989.127992] [] ? __symbol_put+0x40/0x40 [39989.127995] [] ? copy_module_from_fd.isra.50+0xa5/0x130 [39989.127997] [] ? SyS_finit_module+0x76/0xa0 [39989.128001] [] ? system_call_fast_compare_end+0xc/0x6b [39989.128002] Mem-Info: [39989.128008] active_anon:63431 inactive_anon:55185 isolated_anon:0 active_file:167005 inactive_file:125394 isolated_file:0 unevictable:12 dirty:4 writeback:0 unstable:0 slab_reclaimable:69242 slab_unreclaimable:8869 mapped:26162 shmem:2238 pagetables:5339 bounce:0 free:9465 free_pcp:27 free_cma:0 [39989.128024] Node 0 DMA free:8072kB min:40kB low:48kB high:60kB active_anon:1056kB inactive_anon:1364kB active_file:2120kB inactive_file:1928kB unevictable:0kB isolated(anon):0kB isolated(file):8kB present:15988kB managed:15904kB mlocked:0kB dirty:0kB writeback:0kB mapped:1832kB shmem:132kB slab_reclaimable:456kB slab_unreclaimable:356kB kernel_stack:96kB pagetables:160kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:20 all_unreclaimable? no [39989.128030] lowmem_reserve[]: 0 1984 1984 1984 [39989.128034] Node 0 DMA32 free:29804kB min:5584kB low:6980kB high:8376kB active_anon:252668kB inactive_anon:219376kB active_file:665884kB inactive_file:499640kB unevictable:48kB isolated(anon):0kB isolated(file):0kB present:2079616kB managed:2035904kB mlocked:48kB dirty:16kB writeback:0kB mapped:102816kB shmem:8820kB slab_reclaimable:276512kB slab_unreclaimable:35120kB kernel_stack:6640kB pagetables:21196kB unstable:0kB bounce:0kB free_pcp:88kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [39989.128040] lowmem_reserve[]: 0 0 0 0 [39989.128043] Node 0 DMA: 34*4kB (UEM) 11*8kB (UEM) 13*16kB (UM) 1*32kB (M) 1*64kB (M) 1*128kB (M) 1*256kB (M) 2*512kB (UE) 2*1024kB (EM) 2*2048kB (EM) 0*4096kB = 8080kB [39989.128057] Node 0 DMA32: 2056*4kB (UEM) 1073*8kB (UEM) 642*16kB (UEM) 81*32kB (UEM) 1*64kB (E) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 29864kB [39989.128069] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [39989.128071] 294941 total pagecache pages [39989.128073] 300 pages in swap cache [39989.128075] Swap cache stats: add 5938, delete 5638, find 589/756 [39989.128076] Free swap = 4966840kB [39989.128077] Total swap = 4988176kB [39989.128079] 523901 pages RAM [39989.128080] 0 pages HighMem/MovableOnly [39989.128081] 10949 pages reserved [39989.128082] 0 pages hwpoisoned After trying two more times it finally worked: [41066.465307] usb 1-5.1: USB disconnect, device number 6 [41070.248026] usb 1-5.1: new full-speed USB device number 7 using ehci-pci [41070.346629] usb 1-5.1: New USB device found, idVendor=0403, idProduct=6001 [41070.346633] usb 1-5.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [41070.346637] usb 1-5.1: Product: FT232R USB UART [41070.346640] usb 1-5.1: Manufacturer: FTDI [41070.346643] usb 1-5.1: SerialNumber: A903PDKT [41071.369988] usbcore: registered new interface driver usbserial [41071.370015] usbcore: registered new interface driver usbserial_generic [41071.370038] usbserial: USB Serial support registered for generic [41071.387541] usbcore: registered new interface driver ftdi_sio [41071.387568] usbserial: USB Serial support registered for FTDI USB Serial Device [41071.387693] ftdi_sio 1-5.1:1.0: FTDI USB Serial Device converter detected [41071.387756] usb 1-5.1: Detected FT232RL [41071.388791] usb 1-5.1: FTDI USB Serial Device converter now attached to ttyUSB0 Any suggestion? Thanks, baruch -- http://baruch.siach.name/blog/ ~. .~ Tk Open Systems =}------------------------------------------------ooO--U--Ooo------------{= - baruch-NswTu9S1W3P6gbPvEgmw2w@public.gmane.org - tel: +972.2.679.5364, http://www.tkos.co.il - -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html