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From: Paolo Minazzi on 27 Apr 2010 05:10 I have tried this patch. I have enabled LOGFS, but not mounted partition with it. /dev/mtdblock1 is my romfs root partition and it is OK. The problem is that init cannot mount my /dev/mtdblock1 romfs root. This is the fault : Platform: Cirrus Logic EDB9315A Board (ARM920T) Rev A Copyright (C) 2000, 2001, 2002, Red Hat, Inc. |---------------------------------------------- Raw file loaded 0x00080000-0x001dce6b, assumed entry at 0x00080000----------------------------------------------------------- RedBoot> exec -s 0x00b00000 -r 0x00a00000 -c "root=/dev/mtdblock1 console=ttyAM console=tty1"-------------------------------- ENTRY=0xc0008000------------------------------------------------------------------------------------------------------------- LENGTH=0x00300000------------------------------------------------------------------------------------------------------------ BASE_ADDR=0x00080000--------------------------------------------------------------------------------------------------------- Using base address 0x00080000 and length 0x00300000-------------------------------------------------------------------------- Uncompressing Linux... done, booting the kernel. Linux version 2.6.34-rc5 (root(a)darkstar) (gcc version 3.4.3) #18 Tue Apr 27 10:55:55 CEST 2010 CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=c0007177 CPU: VIVT data cache, VIVT instruction cache Machine: Cirrus Logic EDB9315A Evaluation Board Memory policy: ECC disabled, Data cache writeback Built 1 zonelists in Zone order, mobility grouping on. Total pages: 32512 Kernel command line: root=/dev/mtdblock1 console=ttyAM console=tty1 PID hash table entries: 512 (order: -1, 2048 bytes) Dentry cache hash table entries: 16384 (order: 4, 65536 bytes) Inode-cache hash table entries: 8192 (order: 3, 32768 bytes) Memory: 128MB = 128MB total Memory: 126928k/126928k available, 4144k reserved, 0K highmem Virtual kernel memory layout: vector : 0xffff0000 - 0xffff1000 ( 4 kB) fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB) DMA : 0xffc00000 - 0xffe00000 ( 2 MB) vmalloc : 0xc8800000 - 0xfe800000 ( 864 MB) lowmem : 0xc0000000 - 0xc8000000 ( 128 MB) modules : 0xbf000000 - 0xc0000000 ( 16 MB) .init : 0xc0008000 - 0xc0036000 ( 184 kB) .text : 0xc0036000 - 0xc02ab000 (2516 kB) .data : 0xc02ac000 - 0xc02c4e00 ( 100 kB) SLUB: Genslabs=11, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 Hierarchical RCU implementation. NR_IRQS:120 VIC @fefb0000: id 0x00041190, vendor 0x41 VIC @fefc0000: id 0x00041190, vendor 0x41 Console: colour dummy device 80x30 console [tty1] enabled Calibrating delay loop... 99.73 BogoMIPS (lpj=498688) Mount-cache hash table entries: 512 CPU: Testing write buffer coherency: ok NET: Registered protocol family 16 ep93xx clock: PLL1 running at 200 MHz, PLL2 at 48 MHz ep93xx clock: FCLK 200 MHz, HCLK 100 MHz, PCLK 50 MHz ep93xx dma_m2p: M2P DMA subsystem initialized bio: create slab <bio-0> at 0 SCSI subsystem initialized usbcore: registered new interface driver usbfs usbcore: registered new interface driver hub usbcore: registered new device driver usb NET: Registered protocol family 2 IP route cache hash table entries: 1024 (order: 0, 4096 bytes) TCP established hash table entries: 4096 (order: 3, 32768 bytes) TCP bind hash table entries: 4096 (order: 2, 16384 bytes) TCP: Hash tables configured (established 4096 bind 4096) 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 JFFS2 version 2.2. (NAND) © 2001-2006 Red Hat, Inc. ***REGISTER LOGFS ***REGISTER LOGFS DONE ret=0 ROMFS MTD (C) 2007 Red Hat, Inc. msgmni has been set to 247 io scheduler noop registered io scheduler deadline registered io scheduler cfq registered (default) Console: switching to colour frame buffer device 100x37 graphics fb0: registered. Mode = 800x600-16 Serial: AMBA driver apb:uart1: ttyAM0 at MMIO 0x808c0000 (irq = 52) is a AMBA console [ttyAM0] enabled apb:uart2: ttyAM1 at MMIO 0x808d0000 (irq = 54) is a AMBA apb:uart3: ttyAM2 at MMIO 0x808e0000 (irq = 55) is a AMBA dev->num_resources=1 physmap platform flash device: 02000000 at 60000000 physmap-flash.0: Found 1 x16 devices at 0x0 in 16-bit bank physmap-flash.0: Found 1 x16 devices at 0x1000000 in 16-bit bank Intel/Sharp Extended Query Table at 0x0031 Intel/Sharp Extended Query Table at 0x0031 Using buffer write method cfi_cmdset_0001: Erase suspend on write enabled cmdlinepart partition parsing not available Searching for RedBoot partition table in physmap-flash.0 at offset 0x1fe0000 6 RedBoot partitions found on MTD device physmap-flash.0 Creating 6 MTD partitions on "physmap-flash.0": 0x000000000000-0x000000040000 : "RedBoot" 0x000000040000-0x000000b40000 : "ramdisk" 0x000000b40000-0x000000e40000 : "zImage" 0x000000e40000-0x000001fc0000 : "jffs2" 0x000001fc0000-0x000001fe0000 : "RedBoot config" 0x000001fe0000-0x000002000000 : "FIS directory" PPP generic driver version 2.4.2 PPP Deflate Compression module registered PPP BSD Compression module registered ep93xx-eth version 0.1 loading eth0: ep93xx on-chip ethernet, IRQ 39, 00:00:11:22:33:36 ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver ep93xx-ohci ep93xx-ohci: EP93xx OHCI ep93xx-ohci ep93xx-ohci: new USB bus registered, assigned bus number 1 ep93xx-ohci ep93xx-ohci: irq 56, io mem 0x80020000 hub 1-0:1.0: USB hub found hub 1-0:1.0: 3 ports detected usbcore: registered new interface driver cdc_acm cdc_acm: v0.26:USB Abstract Control Model driver for USB modems and ISDN adapters Initializing USB Mass Storage driver... usbcore: registered new interface driver usb-storage USB Mass Storage support registered. ep93xx-rtc ep93xx-rtc: rtc core: registered ep93xx-rtc as rtc0 usbcore: registered new interface driver usbhid usbhid: USB HID core driver TCP cubic registered NET: Registered protocol family 17 Last power-down at UTC 08:47:16 on 27/04/2010 ep93xx-rtc ep93xx-rtc: setting system clock to 2010-04-27 08:47:16 UTC (1272358036) VFS: Cannot open root device "mtdblock1" or unknown-block(31,1) Please append a correct "root=" boot option; here are the available partitions: 1f00 256 mtdblock0 (driver?) 1f01 11264 mtdblock1 (driver?) 1f02 3072 mtdblock2 (driver?) 1f03 17920 mtdblock3 (driver?) 1f04 128 mtdblock4 (driver?) 1f05 128 mtdblock5 (driver?) Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,1) Backtrace: [<c003a3dc>] (dump_backtrace+0x0/0x12c) from [<c003a520>] (dump_stack+0x18/0x1c) r7:c7c11000 r6:fffffffb r5:c7c11000 r4:00000000 [<c003a508>] (dump_stack+0x0/0x1c) from [<c0046628>] (panic+0x3c/0xc4) [<c00465ec>] (panic+0x0/0xc4) from [<c0008d58>] (mount_block_root+0x110/0x2e8) r3:00000000 r2:20000013 r1:c7c27f58 r0:c0276b44 [<c0008c48>] (mount_block_root+0x0/0x2e8) from [<c0008f84>] (mount_root+0x54/0x6c) [<c0008f30>] (mount_root+0x0/0x6c) from [<c0009094>] (prepare_namespace+0xf8/0x194) r5:c001a56c r4:c001a570 [<c0008f9c>] (prepare_namespace+0x0/0x194) from [<c0008aa4>] (kernel_init+0x114/0x15c) r6:c0019b0c r5:c0019d5c r4:c02c4e18 [<c0008990>] (kernel_init+0x0/0x15c) from [<c0048e98>] (do_exit+0x0/0x628) r6:00000000 r5:00000000 r4:00000000 If I disable logfs, my root /dev/mtdblock1 is mounted correclty. Any ideas ? Paolo On Mon, Apr 26, 2010 at 6:31 PM, J�rn Engel <joern(a)logfs.org> wrote: > Otherwise we hit a BUG_ON in bdi_queue_work(). > > Signed-off-by: Joern Engel <joern(a)logfs.org> > --- > �drivers/mtd/mtdcore.c | � 17 ++++++++++++++++- > �1 files changed, 16 insertions(+), 1 deletions(-) > > diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c > index cb4858b..8dd3e46 100644 > --- a/drivers/mtd/mtdcore.c > +++ b/drivers/mtd/mtdcore.c > @@ -299,7 +299,7 @@ static struct device_type mtd_devtype = { > > �int add_mtd_device(struct mtd_info *mtd) > �{ > - � � � int i; > + � � � int i, err; > > � � � �if (!mtd->backing_dev_info) { > � � � � � � � �switch (mtd->type) { > @@ -322,6 +322,12 @@ int add_mtd_device(struct mtd_info *mtd) > � � � � � � � �if (!mtd_table[i]) { > � � � � � � � � � � � �struct mtd_notifier *not; > > + � � � � � � � � � � � err = bdi_register(mtd->backing_dev_info, NULL, "mtd%d", > + � � � � � � � � � � � � � � � � � � � i); > + � � � � � � � � � � � if (err) { > + � � � � � � � � � � � � � � � /* We lose the errno information :( */ > + � � � � � � � � � � � � � � � break; > + � � � � � � � � � � � } > � � � � � � � � � � � �mtd_table[i] = mtd; > � � � � � � � � � � � �mtd->index = i; > � � � � � � � � � � � �mtd->usecount = 0; > @@ -692,6 +698,15 @@ static int __init init_mtd(void) > � � � �int ret; > � � � �ret = class_register(&mtd_class); > > + � � � ret = bdi_init(&mtd_bdi_unmappable); > + � � � if (ret) > + � � � � � � � return ret; > + � � � ret = bdi_init(&mtd_bdi_ro_mappable); > + � � � if (ret) > + � � � � � � � return ret; > + � � � ret = bdi_init(&mtd_bdi_rw_mappable); > + � � � if (ret) > + � � � � � � � return ret; > � � � �if (ret) { > � � � � � � � �pr_err("Error registering mtd class: %d\n", ret); > � � � � � � � �return ret; > -- > 1.6.2.1 > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
From: Jens Axboe on 27 Apr 2010 05:20 On Tue, Apr 27 2010, Paolo Minazzi wrote: > I have tried this patch. > I have enabled LOGFS, but not mounted partition with it. > /dev/mtdblock1 is my romfs root partition and it is OK. > > The problem is that init cannot mount my /dev/mtdblock1 romfs root. > > This is the fault : > Platform: Cirrus Logic EDB9315A Board (ARM920T) Rev A > Copyright (C) 2000, 2001, 2002, Red Hat, Inc. > |---------------------------------------------- > Raw file loaded 0x00080000-0x001dce6b, assumed entry at > 0x00080000----------------------------------------------------------- > RedBoot> exec -s 0x00b00000 -r 0x00a00000 -c "root=/dev/mtdblock1 > console=ttyAM console=tty1"-------------------------------- > ENTRY=0xc0008000------------------------------------------------------------------------------------------------------------- > LENGTH=0x00300000------------------------------------------------------------------------------------------------------------ > BASE_ADDR=0x00080000--------------------------------------------------------------------------------------------------------- > Using base address 0x00080000 and length > 0x00300000-------------------------------------------------------------------------- > Uncompressing Linux... done, booting the kernel. > Linux version 2.6.34-rc5 (root(a)darkstar) (gcc version 3.4.3) #18 Tue > Apr 27 10:55:55 CEST 2010 > CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=c0007177 > CPU: VIVT data cache, VIVT instruction cache > Machine: Cirrus Logic EDB9315A Evaluation Board > Memory policy: ECC disabled, Data cache writeback > Built 1 zonelists in Zone order, mobility grouping on. Total pages: 32512 > Kernel command line: root=/dev/mtdblock1 console=ttyAM console=tty1 > PID hash table entries: 512 (order: -1, 2048 bytes) > Dentry cache hash table entries: 16384 (order: 4, 65536 bytes) > Inode-cache hash table entries: 8192 (order: 3, 32768 bytes) > Memory: 128MB = 128MB total > Memory: 126928k/126928k available, 4144k reserved, 0K highmem > Virtual kernel memory layout: > vector : 0xffff0000 - 0xffff1000 ( 4 kB) > fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB) > DMA : 0xffc00000 - 0xffe00000 ( 2 MB) > vmalloc : 0xc8800000 - 0xfe800000 ( 864 MB) > lowmem : 0xc0000000 - 0xc8000000 ( 128 MB) > modules : 0xbf000000 - 0xc0000000 ( 16 MB) > .init : 0xc0008000 - 0xc0036000 ( 184 kB) > .text : 0xc0036000 - 0xc02ab000 (2516 kB) > .data : 0xc02ac000 - 0xc02c4e00 ( 100 kB) > SLUB: Genslabs=11, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 > Hierarchical RCU implementation. > NR_IRQS:120 > VIC @fefb0000: id 0x00041190, vendor 0x41 > VIC @fefc0000: id 0x00041190, vendor 0x41 > Console: colour dummy device 80x30 > console [tty1] enabled > Calibrating delay loop... 99.73 BogoMIPS (lpj=498688) > Mount-cache hash table entries: 512 > CPU: Testing write buffer coherency: ok > NET: Registered protocol family 16 > ep93xx clock: PLL1 running at 200 MHz, PLL2 at 48 MHz > ep93xx clock: FCLK 200 MHz, HCLK 100 MHz, PCLK 50 MHz > ep93xx dma_m2p: M2P DMA subsystem initialized > bio: create slab <bio-0> at 0 > SCSI subsystem initialized > usbcore: registered new interface driver usbfs > usbcore: registered new interface driver hub > usbcore: registered new device driver usb > NET: Registered protocol family 2 > IP route cache hash table entries: 1024 (order: 0, 4096 bytes) > TCP established hash table entries: 4096 (order: 3, 32768 bytes) > TCP bind hash table entries: 4096 (order: 2, 16384 bytes) > TCP: Hash tables configured (established 4096 bind 4096) > 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 > JFFS2 version 2.2. (NAND) © 2001-2006 Red Hat, Inc. > ***REGISTER LOGFS > ***REGISTER LOGFS DONE ret=0 > ROMFS MTD (C) 2007 Red Hat, Inc. > msgmni has been set to 247 > io scheduler noop registered > io scheduler deadline registered > io scheduler cfq registered (default) > Console: switching to colour frame buffer device 100x37 > graphics fb0: registered. Mode = 800x600-16 > Serial: AMBA driver > apb:uart1: ttyAM0 at MMIO 0x808c0000 (irq = 52) is a AMBA > console [ttyAM0] enabled > apb:uart2: ttyAM1 at MMIO 0x808d0000 (irq = 54) is a AMBA > apb:uart3: ttyAM2 at MMIO 0x808e0000 (irq = 55) is a AMBA > dev->num_resources=1 > physmap platform flash device: 02000000 at 60000000 > physmap-flash.0: Found 1 x16 devices at 0x0 in 16-bit bank > physmap-flash.0: Found 1 x16 devices at 0x1000000 in 16-bit bank > Intel/Sharp Extended Query Table at 0x0031 > Intel/Sharp Extended Query Table at 0x0031 > Using buffer write method > cfi_cmdset_0001: Erase suspend on write enabled > cmdlinepart partition parsing not available > Searching for RedBoot partition table in physmap-flash.0 at offset 0x1fe0000 > 6 RedBoot partitions found on MTD device physmap-flash.0 > Creating 6 MTD partitions on "physmap-flash.0": > 0x000000000000-0x000000040000 : "RedBoot" > 0x000000040000-0x000000b40000 : "ramdisk" > 0x000000b40000-0x000000e40000 : "zImage" > 0x000000e40000-0x000001fc0000 : "jffs2" > 0x000001fc0000-0x000001fe0000 : "RedBoot config" > 0x000001fe0000-0x000002000000 : "FIS directory" > PPP generic driver version 2.4.2 > PPP Deflate Compression module registered > PPP BSD Compression module registered > ep93xx-eth version 0.1 loading > eth0: ep93xx on-chip ethernet, IRQ 39, 00:00:11:22:33:36 > ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver > ep93xx-ohci ep93xx-ohci: EP93xx OHCI > ep93xx-ohci ep93xx-ohci: new USB bus registered, assigned bus number 1 > ep93xx-ohci ep93xx-ohci: irq 56, io mem 0x80020000 > hub 1-0:1.0: USB hub found > hub 1-0:1.0: 3 ports detected > usbcore: registered new interface driver cdc_acm > cdc_acm: v0.26:USB Abstract Control Model driver for USB modems and > ISDN adapters > Initializing USB Mass Storage driver... > usbcore: registered new interface driver usb-storage > USB Mass Storage support registered. > ep93xx-rtc ep93xx-rtc: rtc core: registered ep93xx-rtc as rtc0 > usbcore: registered new interface driver usbhid > usbhid: USB HID core driver > TCP cubic registered > NET: Registered protocol family 17 > Last power-down at UTC 08:47:16 on 27/04/2010 > ep93xx-rtc ep93xx-rtc: setting system clock to 2010-04-27 08:47:16 UTC > (1272358036) > VFS: Cannot open root device "mtdblock1" or unknown-block(31,1) > Please append a correct "root=" boot option; here are the available partitions: > 1f00 256 mtdblock0 (driver?) > 1f01 11264 mtdblock1 (driver?) > 1f02 3072 mtdblock2 (driver?) > 1f03 17920 mtdblock3 (driver?) > 1f04 128 mtdblock4 (driver?) > 1f05 128 mtdblock5 (driver?) > Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,1) > Backtrace: > [<c003a3dc>] (dump_backtrace+0x0/0x12c) from [<c003a520>] (dump_stack+0x18/0x1c) > r7:c7c11000 r6:fffffffb r5:c7c11000 r4:00000000 > [<c003a508>] (dump_stack+0x0/0x1c) from [<c0046628>] (panic+0x3c/0xc4) > [<c00465ec>] (panic+0x0/0xc4) from [<c0008d58>] (mount_block_root+0x110/0x2e8) > r3:00000000 r2:20000013 r1:c7c27f58 r0:c0276b44 > [<c0008c48>] (mount_block_root+0x0/0x2e8) from [<c0008f84>] > (mount_root+0x54/0x6c) > [<c0008f30>] (mount_root+0x0/0x6c) from [<c0009094>] > (prepare_namespace+0xf8/0x194) > r5:c001a56c r4:c001a570 > [<c0008f9c>] (prepare_namespace+0x0/0x194) from [<c0008aa4>] > (kernel_init+0x114/0x15c) > r6:c0019b0c r5:c0019d5c r4:c02c4e18 > [<c0008990>] (kernel_init+0x0/0x15c) from [<c0048e98>] (do_exit+0x0/0x628) > r6:00000000 r5:00000000 r4:00000000 > > > > If I disable logfs, my root /dev/mtdblock1 is mounted correclty. So this issue looks unrelated, but a bug none the less (if just enabling logfs breaks the mount). -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
From: Jens Axboe on 27 Apr 2010 05:30 On Tue, Apr 27 2010, Paolo Minazzi wrote: > On Tue, Apr 27, 2010 at 11:16 AM, Jens Axboe <jens.axboe(a)oracle.com> wrote: > > On Tue, Apr 27 2010, Paolo Minazzi wrote: > >> I have tried this patch. > >> I have enabled LOGFS, but not mounted partition with it. > >> /dev/mtdblock1 is my romfs root partition and it is OK. > >> > >> The problem is that init cannot mount my /dev/mtdblock1 romfs root. > >> > >> This is the fault : > >> Platform: Cirrus Logic EDB9315A Board (ARM920T) Rev A > >> Copyright (C) 2000, 2001, 2002, Red Hat, Inc. > >> � � � �|---------------------------------------------- > >> Raw file loaded 0x00080000-0x001dce6b, assumed entry at > >> 0x00080000----------------------------------------------------------- > >> RedBoot> exec -s 0x00b00000 -r 0x00a00000 -c "root=/dev/mtdblock1 > >> console=ttyAM console=tty1"-------------------------------- > >> ENTRY=0xc0008000------------------------------------------------------------------------------------------------------------- > >> LENGTH=0x00300000------------------------------------------------------------------------------------------------------------ > >> BASE_ADDR=0x00080000--------------------------------------------------------------------------------------------------------- > >> Using base address 0x00080000 and length > >> 0x00300000-------------------------------------------------------------------------- > >> Uncompressing Linux... done, booting the kernel. > >> Linux version 2.6.34-rc5 (root(a)darkstar) (gcc version 3.4.3) #18 Tue > >> Apr 27 10:55:55 CEST 2010 > >> CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=c0007177 > >> CPU: VIVT data cache, VIVT instruction cache > >> Machine: Cirrus Logic EDB9315A Evaluation Board > >> Memory policy: ECC disabled, Data cache writeback > >> Built 1 zonelists in Zone order, mobility grouping on. �Total pages: 32512 > >> Kernel command line: root=/dev/mtdblock1 console=ttyAM console=tty1 > >> PID hash table entries: 512 (order: -1, 2048 bytes) > >> Dentry cache hash table entries: 16384 (order: 4, 65536 bytes) > >> Inode-cache hash table entries: 8192 (order: 3, 32768 bytes) > >> Memory: 128MB = 128MB total > >> Memory: 126928k/126928k available, 4144k reserved, 0K highmem > >> Virtual kernel memory layout: > >> � � vector �: 0xffff0000 - 0xffff1000 � ( � 4 kB) > >> � � fixmap �: 0xfff00000 - 0xfffe0000 � ( 896 kB) > >> � � DMA � � : 0xffc00000 - 0xffe00000 � ( � 2 MB) > >> � � vmalloc : 0xc8800000 - 0xfe800000 � ( 864 MB) > >> � � lowmem �: 0xc0000000 - 0xc8000000 � ( 128 MB) > >> � � modules : 0xbf000000 - 0xc0000000 � ( �16 MB) > >> � � � .init : 0xc0008000 - 0xc0036000 � ( 184 kB) > >> � � � .text : 0xc0036000 - 0xc02ab000 � (2516 kB) > >> � � � .data : 0xc02ac000 - 0xc02c4e00 � ( 100 kB) > >> SLUB: Genslabs=11, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 > >> Hierarchical RCU implementation. > >> NR_IRQS:120 > >> VIC @fefb0000: id 0x00041190, vendor 0x41 > >> VIC @fefc0000: id 0x00041190, vendor 0x41 > >> Console: colour dummy device 80x30 > >> console [tty1] enabled > >> Calibrating delay loop... 99.73 BogoMIPS (lpj=498688) > >> Mount-cache hash table entries: 512 > >> CPU: Testing write buffer coherency: ok > >> NET: Registered protocol family 16 > >> ep93xx clock: PLL1 running at 200 MHz, PLL2 at 48 MHz > >> ep93xx clock: FCLK 200 MHz, HCLK 100 MHz, PCLK 50 MHz > >> ep93xx dma_m2p: M2P DMA subsystem initialized > >> bio: create slab <bio-0> at 0 > >> SCSI subsystem initialized > >> usbcore: registered new interface driver usbfs > >> usbcore: registered new interface driver hub > >> usbcore: registered new device driver usb > >> NET: Registered protocol family 2 > >> IP route cache hash table entries: 1024 (order: 0, 4096 bytes) > >> TCP established hash table entries: 4096 (order: 3, 32768 bytes) > >> TCP bind hash table entries: 4096 (order: 2, 16384 bytes) > >> TCP: Hash tables configured (established 4096 bind 4096) > >> 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 > >> JFFS2 version 2.2. (NAND) � 2001-2006 Red Hat, Inc. > >> ***REGISTER LOGFS > >> ***REGISTER LOGFS DONE ret=0 > >> ROMFS MTD (C) 2007 Red Hat, Inc. > >> msgmni has been set to 247 > >> io scheduler noop registered > >> io scheduler deadline registered > >> io scheduler cfq registered (default) > >> Console: switching to colour frame buffer device 100x37 > >> graphics fb0: registered. Mode = 800x600-16 > >> Serial: AMBA driver > >> apb:uart1: ttyAM0 at MMIO 0x808c0000 (irq = 52) is a AMBA > >> console [ttyAM0] enabled > >> apb:uart2: ttyAM1 at MMIO 0x808d0000 (irq = 54) is a AMBA > >> apb:uart3: ttyAM2 at MMIO 0x808e0000 (irq = 55) is a AMBA > >> dev->num_resources=1 > >> physmap platform flash device: 02000000 at 60000000 > >> physmap-flash.0: Found 1 x16 devices at 0x0 in 16-bit bank > >> physmap-flash.0: Found 1 x16 devices at 0x1000000 in 16-bit bank > >> �Intel/Sharp Extended Query Table at 0x0031 > >> �Intel/Sharp Extended Query Table at 0x0031 > >> Using buffer write method > >> cfi_cmdset_0001: Erase suspend on write enabled > >> cmdlinepart partition parsing not available > >> Searching for RedBoot partition table in physmap-flash.0 at offset 0x1fe0000 > >> 6 RedBoot partitions found on MTD device physmap-flash.0 > >> Creating 6 MTD partitions on "physmap-flash.0": > >> 0x000000000000-0x000000040000 : "RedBoot" > >> 0x000000040000-0x000000b40000 : "ramdisk" > >> 0x000000b40000-0x000000e40000 : "zImage" > >> 0x000000e40000-0x000001fc0000 : "jffs2" > >> 0x000001fc0000-0x000001fe0000 : "RedBoot config" > >> 0x000001fe0000-0x000002000000 : "FIS directory" > >> PPP generic driver version 2.4.2 > >> PPP Deflate Compression module registered > >> PPP BSD Compression module registered > >> ep93xx-eth version 0.1 loading > >> eth0: ep93xx on-chip ethernet, IRQ 39, 00:00:11:22:33:36 > >> ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver > >> ep93xx-ohci ep93xx-ohci: EP93xx OHCI > >> ep93xx-ohci ep93xx-ohci: new USB bus registered, assigned bus number 1 > >> ep93xx-ohci ep93xx-ohci: irq 56, io mem 0x80020000 > >> hub 1-0:1.0: USB hub found > >> hub 1-0:1.0: 3 ports detected > >> usbcore: registered new interface driver cdc_acm > >> cdc_acm: v0.26:USB Abstract Control Model driver for USB modems and > >> ISDN adapters > >> Initializing USB Mass Storage driver... > >> usbcore: registered new interface driver usb-storage > >> USB Mass Storage support registered. > >> ep93xx-rtc ep93xx-rtc: rtc core: registered ep93xx-rtc as rtc0 > >> usbcore: registered new interface driver usbhid > >> usbhid: USB HID core driver > >> TCP cubic registered > >> NET: Registered protocol family 17 > >> Last power-down at UTC 08:47:16 on 27/04/2010 > >> ep93xx-rtc ep93xx-rtc: setting system clock to 2010-04-27 08:47:16 UTC > >> (1272358036) > >> VFS: Cannot open root device "mtdblock1" or unknown-block(31,1) > >> Please append a correct "root=" boot option; here are the available partitions: > >> 1f00 � � � � � � 256 mtdblock0 (driver?) > >> 1f01 � � � � � 11264 mtdblock1 (driver?) > >> 1f02 � � � � � �3072 mtdblock2 (driver?) > >> 1f03 � � � � � 17920 mtdblock3 (driver?) > >> 1f04 � � � � � � 128 mtdblock4 (driver?) > >> 1f05 � � � � � � 128 mtdblock5 (driver?) > >> Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,1) > >> Backtrace: > >> [<c003a3dc>] (dump_backtrace+0x0/0x12c) from [<c003a520>] (dump_stack+0x18/0x1c) > >> �r7:c7c11000 r6:fffffffb r5:c7c11000 r4:00000000 > >> [<c003a508>] (dump_stack+0x0/0x1c) from [<c0046628>] (panic+0x3c/0xc4) > >> [<c00465ec>] (panic+0x0/0xc4) from [<c0008d58>] (mount_block_root+0x110/0x2e8) > >> �r3:00000000 r2:20000013 r1:c7c27f58 r0:c0276b44 > >> [<c0008c48>] (mount_block_root+0x0/0x2e8) from [<c0008f84>] > >> (mount_root+0x54/0x6c) > >> [<c0008f30>] (mount_root+0x0/0x6c) from [<c0009094>] > >> (prepare_namespace+0xf8/0x194) > >> �r5:c001a56c r4:c001a570 > >> [<c0008f9c>] (prepare_namespace+0x0/0x194) from [<c0008aa4>] > >> (kernel_init+0x114/0x15c) > >> �r6:c0019b0c r5:c0019d5c r4:c02c4e18 > >> [<c0008990>] (kernel_init+0x0/0x15c) from [<c0048e98>] (do_exit+0x0/0x628) > >> �r6:00000000 r5:00000000 r4:00000000 > >> > >> > >> > >> If I disable logfs, my root /dev/mtdblock1 is mounted correclty. > > > > So this issue looks unrelated, but a bug none the less (if just enabling > > logfs breaks the mount). > > To be precise, I say : > > - downloaded 2.6.34rc5 > - apply the jens patch > - the logfs code is the code in the 2.6.34rc5 (I have no applied other > jorn patch) (please stop top posting, I fixed this one up for you). Just to be on the safe side - without the patch, does it work or not? -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
From: Paolo Minazzi on 27 Apr 2010 05:30 To be precise, I say : - downloaded 2.6.34rc5 - apply the jens patch - the logfs code is the code in the 2.6.34rc5 (I have no applied other jorn patch) Paolo On Tue, Apr 27, 2010 at 11:16 AM, Jens Axboe <jens.axboe(a)oracle.com> wrote: > On Tue, Apr 27 2010, Paolo Minazzi wrote: >> I have tried this patch. >> I have enabled LOGFS, but not mounted partition with it. >> /dev/mtdblock1 is my romfs root partition and it is OK. >> >> The problem is that init cannot mount my /dev/mtdblock1 romfs root. >> >> This is the fault : >> Platform: Cirrus Logic EDB9315A Board (ARM920T) Rev A >> Copyright (C) 2000, 2001, 2002, Red Hat, Inc. >> � � � �|---------------------------------------------- >> Raw file loaded 0x00080000-0x001dce6b, assumed entry at >> 0x00080000----------------------------------------------------------- >> RedBoot> exec -s 0x00b00000 -r 0x00a00000 -c "root=/dev/mtdblock1 >> console=ttyAM console=tty1"-------------------------------- >> ENTRY=0xc0008000------------------------------------------------------------------------------------------------------------- >> LENGTH=0x00300000------------------------------------------------------------------------------------------------------------ >> BASE_ADDR=0x00080000--------------------------------------------------------------------------------------------------------- >> Using base address 0x00080000 and length >> 0x00300000-------------------------------------------------------------------------- >> Uncompressing Linux... done, booting the kernel. >> Linux version 2.6.34-rc5 (root(a)darkstar) (gcc version 3.4.3) #18 Tue >> Apr 27 10:55:55 CEST 2010 >> CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=c0007177 >> CPU: VIVT data cache, VIVT instruction cache >> Machine: Cirrus Logic EDB9315A Evaluation Board >> Memory policy: ECC disabled, Data cache writeback >> Built 1 zonelists in Zone order, mobility grouping on. �Total pages: 32512 >> Kernel command line: root=/dev/mtdblock1 console=ttyAM console=tty1 >> PID hash table entries: 512 (order: -1, 2048 bytes) >> Dentry cache hash table entries: 16384 (order: 4, 65536 bytes) >> Inode-cache hash table entries: 8192 (order: 3, 32768 bytes) >> Memory: 128MB = 128MB total >> Memory: 126928k/126928k available, 4144k reserved, 0K highmem >> Virtual kernel memory layout: >> � � vector �: 0xffff0000 - 0xffff1000 � ( � 4 kB) >> � � fixmap �: 0xfff00000 - 0xfffe0000 � ( 896 kB) >> � � DMA � � : 0xffc00000 - 0xffe00000 � ( � 2 MB) >> � � vmalloc : 0xc8800000 - 0xfe800000 � ( 864 MB) >> � � lowmem �: 0xc0000000 - 0xc8000000 � ( 128 MB) >> � � modules : 0xbf000000 - 0xc0000000 � ( �16 MB) >> � � � .init : 0xc0008000 - 0xc0036000 � ( 184 kB) >> � � � .text : 0xc0036000 - 0xc02ab000 � (2516 kB) >> � � � .data : 0xc02ac000 - 0xc02c4e00 � ( 100 kB) >> SLUB: Genslabs=11, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 >> Hierarchical RCU implementation. >> NR_IRQS:120 >> VIC @fefb0000: id 0x00041190, vendor 0x41 >> VIC @fefc0000: id 0x00041190, vendor 0x41 >> Console: colour dummy device 80x30 >> console [tty1] enabled >> Calibrating delay loop... 99.73 BogoMIPS (lpj=498688) >> Mount-cache hash table entries: 512 >> CPU: Testing write buffer coherency: ok >> NET: Registered protocol family 16 >> ep93xx clock: PLL1 running at 200 MHz, PLL2 at 48 MHz >> ep93xx clock: FCLK 200 MHz, HCLK 100 MHz, PCLK 50 MHz >> ep93xx dma_m2p: M2P DMA subsystem initialized >> bio: create slab <bio-0> at 0 >> SCSI subsystem initialized >> usbcore: registered new interface driver usbfs >> usbcore: registered new interface driver hub >> usbcore: registered new device driver usb >> NET: Registered protocol family 2 >> IP route cache hash table entries: 1024 (order: 0, 4096 bytes) >> TCP established hash table entries: 4096 (order: 3, 32768 bytes) >> TCP bind hash table entries: 4096 (order: 2, 16384 bytes) >> TCP: Hash tables configured (established 4096 bind 4096) >> 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 >> JFFS2 version 2.2. (NAND) � 2001-2006 Red Hat, Inc. >> ***REGISTER LOGFS >> ***REGISTER LOGFS DONE ret=0 >> ROMFS MTD (C) 2007 Red Hat, Inc. >> msgmni has been set to 247 >> io scheduler noop registered >> io scheduler deadline registered >> io scheduler cfq registered (default) >> Console: switching to colour frame buffer device 100x37 >> graphics fb0: registered. Mode = 800x600-16 >> Serial: AMBA driver >> apb:uart1: ttyAM0 at MMIO 0x808c0000 (irq = 52) is a AMBA >> console [ttyAM0] enabled >> apb:uart2: ttyAM1 at MMIO 0x808d0000 (irq = 54) is a AMBA >> apb:uart3: ttyAM2 at MMIO 0x808e0000 (irq = 55) is a AMBA >> dev->num_resources=1 >> physmap platform flash device: 02000000 at 60000000 >> physmap-flash.0: Found 1 x16 devices at 0x0 in 16-bit bank >> physmap-flash.0: Found 1 x16 devices at 0x1000000 in 16-bit bank >> �Intel/Sharp Extended Query Table at 0x0031 >> �Intel/Sharp Extended Query Table at 0x0031 >> Using buffer write method >> cfi_cmdset_0001: Erase suspend on write enabled >> cmdlinepart partition parsing not available >> Searching for RedBoot partition table in physmap-flash.0 at offset 0x1fe0000 >> 6 RedBoot partitions found on MTD device physmap-flash.0 >> Creating 6 MTD partitions on "physmap-flash.0": >> 0x000000000000-0x000000040000 : "RedBoot" >> 0x000000040000-0x000000b40000 : "ramdisk" >> 0x000000b40000-0x000000e40000 : "zImage" >> 0x000000e40000-0x000001fc0000 : "jffs2" >> 0x000001fc0000-0x000001fe0000 : "RedBoot config" >> 0x000001fe0000-0x000002000000 : "FIS directory" >> PPP generic driver version 2.4.2 >> PPP Deflate Compression module registered >> PPP BSD Compression module registered >> ep93xx-eth version 0.1 loading >> eth0: ep93xx on-chip ethernet, IRQ 39, 00:00:11:22:33:36 >> ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver >> ep93xx-ohci ep93xx-ohci: EP93xx OHCI >> ep93xx-ohci ep93xx-ohci: new USB bus registered, assigned bus number 1 >> ep93xx-ohci ep93xx-ohci: irq 56, io mem 0x80020000 >> hub 1-0:1.0: USB hub found >> hub 1-0:1.0: 3 ports detected >> usbcore: registered new interface driver cdc_acm >> cdc_acm: v0.26:USB Abstract Control Model driver for USB modems and >> ISDN adapters >> Initializing USB Mass Storage driver... >> usbcore: registered new interface driver usb-storage >> USB Mass Storage support registered. >> ep93xx-rtc ep93xx-rtc: rtc core: registered ep93xx-rtc as rtc0 >> usbcore: registered new interface driver usbhid >> usbhid: USB HID core driver >> TCP cubic registered >> NET: Registered protocol family 17 >> Last power-down at UTC 08:47:16 on 27/04/2010 >> ep93xx-rtc ep93xx-rtc: setting system clock to 2010-04-27 08:47:16 UTC >> (1272358036) >> VFS: Cannot open root device "mtdblock1" or unknown-block(31,1) >> Please append a correct "root=" boot option; here are the available partitions: >> 1f00 � � � � � � 256 mtdblock0 (driver?) >> 1f01 � � � � � 11264 mtdblock1 (driver?) >> 1f02 � � � � � �3072 mtdblock2 (driver?) >> 1f03 � � � � � 17920 mtdblock3 (driver?) >> 1f04 � � � � � � 128 mtdblock4 (driver?) >> 1f05 � � � � � � 128 mtdblock5 (driver?) >> Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,1) >> Backtrace: >> [<c003a3dc>] (dump_backtrace+0x0/0x12c) from [<c003a520>] (dump_stack+0x18/0x1c) >> �r7:c7c11000 r6:fffffffb r5:c7c11000 r4:00000000 >> [<c003a508>] (dump_stack+0x0/0x1c) from [<c0046628>] (panic+0x3c/0xc4) >> [<c00465ec>] (panic+0x0/0xc4) from [<c0008d58>] (mount_block_root+0x110/0x2e8) >> �r3:00000000 r2:20000013 r1:c7c27f58 r0:c0276b44 >> [<c0008c48>] (mount_block_root+0x0/0x2e8) from [<c0008f84>] >> (mount_root+0x54/0x6c) >> [<c0008f30>] (mount_root+0x0/0x6c) from [<c0009094>] >> (prepare_namespace+0xf8/0x194) >> �r5:c001a56c r4:c001a570 >> [<c0008f9c>] (prepare_namespace+0x0/0x194) from [<c0008aa4>] >> (kernel_init+0x114/0x15c) >> �r6:c0019b0c r5:c0019d5c r4:c02c4e18 >> [<c0008990>] (kernel_init+0x0/0x15c) from [<c0048e98>] (do_exit+0x0/0x628) >> �r6:00000000 r5:00000000 r4:00000000 >> >> >> >> If I disable logfs, my root /dev/mtdblock1 is mounted correclty. > > So this issue looks unrelated, but a bug none the less (if just enabling > logfs breaks the mount). > > -- > Jens Axboe > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
From: Paolo Minazzi on 27 Apr 2010 05:40
> Just to be on the safe side - without the patch, does it work or not? > > -- > Jens Axboe Without the patch for me means the standard 2.6.34rc5. In this case : - enabling logfs I have an oop in fs/write-back.c:157 before kernel calls init. - disabling logfs I can do normal mount my root /dev/mtdblock1 This is my experience. Paolo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |