Return-Path: Received: from mail-qy0-f181.google.com ([209.85.216.181]:38290 "EHLO mail-qy0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750803Ab1CWNq3 convert rfc822-to-8bit (ORCPT ); Wed, 23 Mar 2011 09:46:29 -0400 In-Reply-To: References: <43F07477-9075-444D-9BBB-368650538EA8@oracle.com> Date: Wed, 23 Mar 2011 14:46:28 +0100 Message-ID: Subject: Re: [bisect] kernel 2.6.38 regression with root nfs mounting From: Belisko Marek To: Chuck Lever Cc: Trond.Myklebust@netapp.com, broonie@opensource.wolfsonmicro.com, bdowning@lavos.net, linux-nfs@vger.kernel.org, LKML Content-Type: text/plain; charset=UTF-8 Sender: linux-nfs-owner@vger.kernel.org List-ID: MIME-Version: 1.0 On Wed, Mar 23, 2011 at 2:44 PM, Chuck Lever wrote: > > On Mar 23, 2011, at 2:30 AM, Belisko Marek wrote: > >> Added linux-nfs to CC (to keep history) add added log with nfsdebugroot enabled. >> >> On Tue, Mar 22, 2011 at 1:34 PM, Chuck Lever wrote: >>> >>> On Mar 22, 2011, at 3:51 AM, Belisko Marek wrote: >>> >>>> After update from 2.6.38-rc8 to 2.6.38 is mounting rootfs over nfs not possible. >>>> Log: >>>> VFS: Mounted root (nfs filesystem) on device 0:14. >>>> Freeing init memory: 132K >>>> nfs: server 10.146.1.21 not responding, still trying >>>> nfs: server 10.146.1.21 not responding, still trying >>>> >>>> This is never ending. I make short bisect (not too much commits >>>> between versions) >>>> and bad commit was reported: 53d4737580535e073963b91ce87d4216e434fab5 >>>> >>>> NFS: NFSROOT should default to "proto=udp" >>>> >>>> I've tested on mini2440 board (DM9000, static IP). >>>> Is there some missing option or something else to be checked? >>> >>> NFSROOT is supposed to work as it did before 2.6.37. >>> >>> Enable NFSROOT debugging (see the description of nfsrootdebug in Documentation/filesystems/nfs/nfsroot.txt), try your boot, and then post the contents of your system log to linux-nfs@vger.kernel.org. >>> >>> -- >>> Chuck Lever >>> chuck[dot]lever[at]oracle[dot]com >>> >>> >>> >>> >>> >> >> Linux version 2.6.38-rc7+ (open-nandra@host) (gcc version 4.5.1 >> (Sourcery G++ Lite 2010.09-50) ) #1 Wed Mar 23 07:23:36 CET 2011 >> CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=c0007177 >> CPU: VIVT data cache, VIVT instruction cache >> Machine: MINI2440 >> Memory policy: ECC disabled, Data cache writeback >> CPU S3C2440A (id 0x32440001) >> S3C24XX Clocks, Copyright 2004 Simtec Electronics >> S3C244X: core 405.000 MHz, memory 101.250 MHz, peripheral 50.625 MHz >> CLOCK: Slow mode (1.500 MHz), fast, MPLL on, UPLL on >> Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 16256 >> Kernel command line: console=ttySAC0,115200 noinitrd init=/sbin/init >> mini2440=1b nfsrootdebug root=/dev/nfs rw >> nfsroot=10.146.1.21:/home/open-nandra/rootfs >> ip=10.146.1.199:10.146.1.21::255.20 >> PID hash table entries: 256 (order: -2, 1024 bytes) >> Dentry cache hash table entries: 8192 (order: 3, 32768 bytes) >> Inode-cache hash table entries: 4096 (order: 2, 16384 bytes) >> Memory: 64MB = 64MB total >> Memory: 60536k/60536k available, 5000k reserved, 0K highmem >> Virtual kernel memory layout: >>    vector  : 0xffff0000 - 0xffff1000   (   4 kB) >>    fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB) >>    DMA     : 0xffc00000 - 0xffe00000   (   2 MB) >>    vmalloc : 0xc4800000 - 0xf6000000   ( 792 MB) >>    lowmem  : 0xc0000000 - 0xc4000000   (  64 MB) >>    modules : 0xbf000000 - 0xc0000000   (  16 MB) >>      .init : 0xc0008000 - 0xc0029000   ( 132 kB) >>      .text : 0xc0029000 - 0xc03e9bb4   (3843 kB) >>      .data : 0xc03ea000 - 0xc040e220   ( 145 kB) >> SLUB: Genslabs=13, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 >> NR_IRQS:85 >> irq: clearing pending status 02000000 >> irq: clearing subpending status 00000002 >> Console: colour dummy device 80x30 >> console [ttySAC0] enabled >> Calibrating delay loop... 201.93 BogoMIPS (lpj=504832) >> pid_max: default: 32768 minimum: 301 >> Mount-cache hash table entries: 512 >> CPU: Testing write buffer coherency: ok >> gpiochip_add: gpios 288..303 (GPIOK) failed to register >> gpiochip_add: gpios 320..334 (GPIOL) failed to register >> gpiochip_add: gpios 352..353 (GPIOM) failed to register >> NET: Registered protocol family 16 >> MINI2440: Option string mini2440=1b >> MINI2440: LCD 0:240x320 [1:800x480] 2:1024x768 >> S3C2440: Initialising architecture >> S3C2440: IRQ Support >> S3C244X: Clock Support, DVS off >> bio: create slab at 0 >> usbcore: registered new interface driver usbfs >> usbcore: registered new interface driver hub >> usbcore: registered new device driver usb >> s3c-i2c s3c2440-i2c: slave address 0x10 >> s3c-i2c s3c2440-i2c: bus frequency set to 98 KHz >> s3c-i2c s3c2440-i2c: i2c-0: S3C I2C adapter >> Advanced Linux Sound Architecture Driver Version 1.0.23. >> NET: Registered protocol family 2 >> IP route cache hash table entries: 1024 (order: 0, 4096 bytes) >> TCP established hash table entries: 2048 (order: 2, 16384 bytes) >> TCP bind hash table entries: 2048 (order: 1, 8192 bytes) >> TCP: Hash tables configured (established 2048 bind 2048) >> TCP reno registered >> UDP hash table entries: 256 (order: 0, 4096 bytes) >> UDP-Lite hash table entries: 256 (order: 0, 4096 bytes) >> NET: Registered protocol family 1 >> RPC: Registered udp transport module. >> RPC: Registered tcp transport module. >> RPC: Registered tcp NFSv4.1 backchannel transport module. >> JFFS2 version 2.2. (NAND) �© 2001-2006 Red Hat, Inc. >> ROMFS MTD (C) 2007 Red Hat, Inc. >> msgmni has been set to 118 >> io scheduler noop registered >> io scheduler deadline registered >> io scheduler cfq registered (default) >> Console: switching to colour frame buffer device 200x80 >> fb0: s3c2410fb frame buffer device >> s3c2440-uart.0: ttySAC0 at MMIO 0x50000000 (irq = 70) is a S3C2440 >> s3c2440-uart.1: ttySAC1 at MMIO 0x50004000 (irq = 73) is a S3C2440 >> s3c2440-uart.2: ttySAC2 at MMIO 0x50008000 (irq = 76) is a S3C2440 >> brd: module loaded >> at24 0-0050: 1024 byte 24c08 EEPROM, writable, 16 bytes/write >> S3C24XX NAND Driver, (c) 2004 Simtec Electronics >> s3c24xx-nand s3c2440-nand: Tacls=1, 9ns Twrph0=3 29ns, Twrph1=2 19ns >> s3c24xx-nand s3c2440-nand: NAND soft ECC >> NAND device: Manufacturer ID: 0xec, Chip ID: 0xda (Samsung NAND 256MiB >> 3,3V 8-bit) >> Creating 4 MTD partitions on "nand": >> 0x000000000000-0x000000040000 : "u-boot" >> ftl_cs: FTL header not found. >> 0x000000040000-0x000000060000 : "u-boot-env" >> ftl_cs: FTL header not found. >> 0x000000060000-0x000000560000 : "kernel" >> ftl_cs: FTL header not found. >> 0x000000560000-0x000010000000 : "root" >> ftl_cs: FTL header not found. >> dm9000 Ethernet Driver, V1.31 >> eth0: dm9000e at c486a300,c486e304 IRQ 51 MAC: 08:08:11:18:12:27 (chip) >> ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver >> s3c2410-ohci s3c2410-ohci: S3C24XX OHCI >> s3c2410-ohci s3c2410-ohci: new USB bus registered, assigned bus number 1 >> s3c2410-ohci s3c2410-ohci: irq 42, io mem 0x49000000 >> hub 1-0:1.0: USB hub found >> hub 1-0:1.0: 2 ports detected >> usbcore: registered new interface driver libusual >> s3c2440-usbgadget s3c2440-usbgadget: S3C2440: increasing FIFO to 128 bytes >> mousedev: PS/2 mouse device common for all mice >> input: gpio-keys as /devices/platform/gpio-keys/input/input0 >> S3C24XX RTC, (c) 2004,2006 Simtec Electronics >> s3c-rtc s3c2410-rtc: rtc disabled, re-enabling >> s3c-rtc s3c2410-rtc: rtc core: registered s3c as rtc0 >> i2c /dev entries driver >> S3C2410 Watchdog Timer, (c) 2004 Simtec Electronics >> s3c2410-wdt s3c2410-wdt: watchdog inactive, reset disabled, irq enabled >> cpuidle: using governor ladder >> sdhci: Secure Digital Host Controller Interface driver >> sdhci: Copyright(c) Pierre Ossman >> s3c-sdi s3c2440-sdi: powered down. >> s3c-sdi s3c2440-sdi: mmc0 - using pio, sw SDIO IRQ >> s3c-sdi s3c2440-sdi: running at 0kHz (requested: 0kHz). >> s3c-sdi s3c2440-sdi: running at 398kHz (requested: 400kHz). >> s3c-sdi s3c2440-sdi: running at 398kHz (requested: 400kHz). >> s3c-sdi s3c2440-sdi: running at 398kHz (requested: 400kHz). >> s3c-sdi s3c2440-sdi: running at 398kHz (requested: 400kHz). >> s3c-sdi s3c2440-sdi: running at 398kHz (requested: 400kHz). >> s3c-sdi s3c2440-sdi: running at 398kHz (requested: 400kHz). >> usbcore: registered new interface driver usbhid >> usbhid: USB HID core driver >> ALSA device list: >>  No soundcards found. >> TCP cubic registered >> NET: Registered protocol family 17 >> Registering the dns_resolver key type >> s3c-rtc s3c2410-rtc: setting system clock to 2011-03-23 06:01:06 UTC >> (1300860066) >> s3c-sdi s3c2440-sdi: running at 398kHz (requested: 400kHz). >> s3c-sdi s3c2440-sdi: running at 16875kHz (requested: 25000kHz). >> s3c-sdi s3c2440-sdi: running at 16875kHz (requested: 25000kHz). >> mmc0: new SD card at address b368 >> mmcblk0: mmc0:b368 SD    970 MiB >> mmcblk0: p1 p2 p3 >> eth0: link down >> IP-Config: Complete: >>     device=eth0, addr=10.146.1.199, mask=255.255.255.0, gw=255.255.255.255, >>     host=mini2440, domain=, nis-domain=(none), >>     bootserver=10.146.1.21, rootserver=10.146.1.21, rootpath= >> Root-NFS: nfsroot=/home/open-nandra/rootfs >> NFS: nfs mount opts='udp,nolock,addr=10.146.1.21' >> NFS:   parsing nfs mount option 'udp' >> NFS:   parsing nfs mount option 'nolock' >> NFS:   parsing nfs mount option 'addr=10.146.1.21' >> NFS: MNTPATH: '/home/open-nandra/rootfs' >> NFS: sending MNT request for 10.146.1.21:/home/open-nandra/rootfs >> eth0: link up, 100Mbps, full-duplex, lpa 0x45E1 >> NFS: received 1 auth flavors >> NFS:   auth flavor[0]: 1 >> NFS: MNT request succeeded >> NFS: using auth flavor 1 >> VFS: Mounted root (nfs filesystem) on device 0:14. >> Freeing init memory: 132K >> nfs: server 10.146.1.21 not responding, still trying >> nfs: server 10.146.1.21 not responding, still trying >> >> This is behavior for commit 53d4737580535e073963b91ce87d4216e434fab5 >> For commit before it works properly. > > What does "rpcinfo -p 10.146.1.21" output look like?  Is NFS over UDP enabled on your server? program vers proto port 100000 2 tcp 111 portmapper 100000 2 udp 111 portmapper 100024 1 udp 40517 status 100024 1 tcp 51397 status 100021 1 udp 44516 nlockmgr 100021 3 udp 44516 nlockmgr 100021 4 udp 44516 nlockmgr 100021 1 tcp 55152 nlockmgr 100021 3 tcp 55152 nlockmgr 100021 4 tcp 55152 nlockmgr 100003 2 tcp 2049 nfs 100003 3 tcp 2049 nfs 100003 4 tcp 2049 nfs 100227 2 tcp 2049 100227 3 tcp 2049 100003 2 udp 2049 nfs 100003 3 udp 2049 nfs 100003 4 udp 2049 nfs 100227 2 udp 2049 100227 3 udp 2049 100005 1 udp 58278 mountd 100005 1 tcp 37178 mountd 100005 2 udp 58278 mountd 100005 2 tcp 37178 mountd 100005 3 udp 58278 mountd 100005 3 tcp 37178 mountd > > -- > Chuck Lever > chuck[dot]lever[at]oracle[dot]com > > > > > regards, marek -- as simple and primitive as possible ------------------------------------------------- Marek Belisko - OPEN-NANDRA Freelance Developer Ruska Nova Ves 219 | Presov, 08005 Slovak Republic Tel: +421 915 052 184 skype: marekwhite icq: 290551086 web: http://open-nandra.com