On Fri, Apr 25, 2014 at 01:22:32AM +0300, Пламен Петров wrote: > > -----Original Message----- > > From: Chris Murphy [mailto:lists@xxxxxxxxxxxxxxxxx] > > Sent: Friday, April 25, 2014 12:06 AM > > To: Пламен Петров > > Cc: 'Marc MERLIN'; linux-btrfs@xxxxxxxxxxxxxxx > > Subject: Re: Can anyone boot a system using btrfs root with linux 3.14 or > > newer? > > > > > > On Apr 24, 2014, at 12:51 PM, Пламен Петров <plamen@xxxxxxxxxxxxxxxxxx> > > wrote: > > > > > > I booted 3.14.1 using sda3 as root, and then tried mounting sda2. It went > > OK, here is what dmesg said: > > > [ 12.412465] Btrfs loaded > > > > For me, with Btrfs not compiled in the kernel, and with an initramfs, on SSD I > > get Btrfs loaded at 2.4 seconds. On HDD, it still happens by 6-7 seconds. > > > > So without an initrd and with btrfs compiled into the kernel I'd expect to see > > Btrfs loaded before 12.4 seconds. Is this an SSD? Or HDD, or hardware raid? > > > > I'd like to see the dmesg from the beginning, until "Btrfs Loaded", for both > > 3.13.11 and 3.14.1 (via serial console output). I think the clue is in the part > > before Btrfs loaded. > > > > Also can you post a diff of the config file for the working 3.13.11 and not > > working 3.14.1 kernels? > > > > Attached to this mail find the requested kernel .config files, the result of "duff -u" between them, as well as the output to serial console of both kernels 3.13.11 and 3.14.1 compiled with attached configs. Thanks for the serial console logs. I see that you didn't add rootwait to the command line of your 3.14 boot. Please do that so that we can see that output. I'm pasting a diff of them for the benefit of others. The obvious things to me are: In 3.13 the device appears after btrfs is loaded: Btrfs loaded (...) scsi2 : ioc0: LSI53C1030 B0, FwRev=01032920h, Ports=1, MaxQ=128, IRQ=17 scsi 2:0:0:0: Direct-Access VMware, VMware Virtual S 1.0 PQ: 0 ANSI: 2 scsi target2:0:0: Beginning Domain Validation scsi target2:0:0: Domain Validation skipping write tests scsi target2:0:0: Ending Domain Validation scsi target2:0:0: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 127) sd 2:0:0:0: [sda] 25165824 512-byte logical blocks: (12.8 GB/12.0 GiB) sd 2:0:0:0: [sda] Write Protect is off sd 2:0:0:0: [sda] Cache data unavailable sd 2:0:0:0: [sda] Assuming drive cache: write through sd 2:0:0:0: [sda] Cache data unavailable sd 2:0:0:0: [sda] Assuming drive cache: write through sd 2:0:0:0: Attached scsi generic sg1 type 0 Fusion MPT FC Host driver 3.04.20 Fusion MPT SAS Host driver 3.04.20 ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver ehci-pci: EHCI PCI platform driver ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver ohci-pci: OHCI PCI platform driver sda: sda1 sda2 sda3 sda4 In 3.14 the device shows up before btrfs is loaded: sd 2:0:0:0: [sda] Cache data unavailable sd 2:0:0:0: [sda] Assuming drive cache: write through sd 2:0:0:0: [sda] Attached SCSI disk (...) Btrfs loaded --- dmesg-3.13.11-mix64-serial.txt 2014-04-24 16:00:44.442491091 -0700 +++ dmesg-3.14.1-mix64-serial.txt 2014-04-24 16:00:50.394404267 -0700 @@ -1,7 +1,7 @@ Initializing cgroup subsys cpuset Initializing cgroup subsys cpu Initializing cgroup subsys cpuacct -Linux version 3.13.11-mix64 (root@crux) (gcc version 4.7.3 (CRUX-x86_64-multilib) ) #1 SMP Fri Apr 25 00:59:11 EEST 2014 +Linux version 3.14.1-mix64 (root@crux) (gcc version 4.7.3 (CRUX-x86_64-multilib) ) #1 SMP Fri Apr 25 00:31:28 EEST 2014 Command line: rw root=/dev/sda2 vga=6 raid=noautodetect console=ttyS0,9600n8 console=tty0 e820: BIOS-provided physical RAM map: BIOS-e820: [mem 0x0000000000000000-0x000000000009efff] usable @@ -190,7 +190,7 @@ e820: [mem 0x40000000-0xefffffff] available for PCI devices Booting paravirtualized kernel on bare hardware setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:8 nr_node_ids:1 -PERCPU: Embedded 25 pages/cpu @ffff88003fc00000 s80000 r0 d22400 u262144 +PERCPU: Embedded 25 pages/cpu @ffff88003fc00000 s80192 r0 d22208 u262144 Built 1 zonelists in Zone order, mobility grouping on. Total pages: 257897 Kernel command line: rw root=/dev/sda2 vga=6 raid=noautodetect console=ttyS0,9600n8 console=tty0 PID hash table entries: 4096 (order: 3, 32768 bytes) @@ -198,7 +198,7 @@ Inode-cache hash table entries: 65536 (order: 7, 524288 bytes) Checking aperture... No AGP bridge found -Memory: 1012808K/1048056K available (7848K kernel code, 519K rwdata, 2604K rodata, 920K init, 2572K bss, 35248K reserved) +Memory: 1012780K/1048056K available (7943K kernel code, 527K rwdata, 2628K rodata, 932K init, 2580K bss, 35276K reserved) SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=8, Nodes=1 Hierarchical RCU implementation. CONFIG_RCU_FANOUT set to non-default value of 32 @@ -210,16 +210,16 @@ tsc: Detected 3000.079 MHz processor Calibrating delay loop (skipped) preset value.. 6000.15 BogoMIPS (lpj=30000790) pid_max: default: 32768 minimum: 301 +ACPI: Core revision 20131218 +ACPI: All ACPI Tables successfully acquired Security Framework initialized Mount-cache hash table entries: 2048 (order: 2, 16384 bytes) Mountpoint-cache hash table entries: 2048 (order: 2, 16384 bytes) Initializing cgroup subsys freezer mce: CPU supports 0 MCE banks Last level iTLB entries: 4KB 512, 2MB 16, 4MB 8 -Last level dTLB entries: 4KB 512, 2MB 128, 4MB 64 -tlb_flushall_shift: 4 -ACPI: Core revision 20131115 -ACPI: All ACPI Tables successfully acquired +Last level dTLB entries: 4KB 512, 2MB 128, 4MB 64, 1GB 0 +tlb_flushall_shift: 6 ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 smpboot: CPU0: AMD Athlon(tm) II X4 640 Processor (fam: 10, model: 05, stepping: 03) Performance Events: AMD PMU driver. @@ -236,22 +236,22 @@ devtmpfs: initialized kworker/u16:0 (14) used greatest stack depth: 6248 bytes left xor: measuring software checksum speed - prefetch64-sse: 12214.400 MB/sec - generic_sse: 11586.000 MB/sec -xor: using function: prefetch64-sse (12214.400 MB/sec) + prefetch64-sse: 12244.000 MB/sec + generic_sse: 11621.200 MB/sec +xor: using function: prefetch64-sse (12244.000 MB/sec) NET: Registered protocol family 16 -kworker/u16:0 (24) used greatest stack depth: 5832 bytes left cpuidle: using governor ladder cpuidle: using governor menu ACPI: bus type PCI registered PCI: MMCONFIG for domain 0000 [bus 00-7f] at [mem 0xf0000000-0xf7ffffff] (base 0xf0000000) PCI: MMCONFIG at [mem 0xf0000000-0xf7ffffff] reserved in E820 PCI: Using configuration type 1 for base access +kworker/u16:0 (42) used greatest stack depth: 5832 bytes left bio: create slab <bio-0> at 0 -raid6: sse2x1 4044 MB/s -raid6: sse2x2 7065 MB/s -raid6: sse2x4 7603 MB/s -raid6: using algorithm sse2x4 (7603 MB/s) +raid6: sse2x1 3955 MB/s +raid6: sse2x2 6623 MB/s +raid6: sse2x4 7560 MB/s +raid6: using algorithm sse2x4 (7560 MB/s) raid6: using intx1 recovery algorithm ACPI: Added _OSI(Module Device) ACPI: Added _OSI(Processor Device) @@ -557,19 +557,18 @@ PCLMULQDQ-NI instructions are not detected. sha256_ssse3: Neither AVX nor SSSE3 is available/usable. sha512_ssse3: Neither AVX nor SSSE3 is available/usable. +futex hash table entries: 2048 (order: 5, 131072 bytes) HugeTLB registered 2 MB page size, pre-allocated 0 pages fuse init (API version 7.22) SGI XFS with security attributes, large block/inode numbers, no debug enabled -bio: create slab <bio-1> at 1 -Btrfs loaded msgmni has been set to 1978 Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251) io scheduler noop registered (default) io scheduler deadline registered crc32: CRC_LE_BITS = 64, CRC_BE BITS = 64 -crc32: self tests passed, processed 225944 bytes in 130914 nsec +crc32: self tests passed, processed 225944 bytes in 131092 nsec crc32c: CRC_LE_BITS = 64 -crc32c: self tests passed, processed 225944 bytes in 86154 nsec +crc32c: self tests passed, processed 225944 bytes in 65503 nsec crc32_combine: 8373 self tests passed crc32c_combine: 8373 self tests passed ACPI: AC Adapter [ACAD] (on-line) @@ -609,13 +608,13 @@ e1000e: Copyright(c) 1999 - 2013 Intel Corporation. igb: Intel(R) Gigabit Ethernet Network Driver - version 5.0.5-k igb: Copyright (c) 2007-2013 Intel Corporation. -VMware vmxnet3 virtual NIC driver - version 1.2.0.0-k-NAPI ata2.00: configured for UDMA/33 +VMware vmxnet3 virtual NIC driver - version 1.2.0.0-k-NAPI Fusion MPT base driver 3.04.20 Copyright (c) 1999-2008 LSI Corporation Fusion MPT SPI Host driver 3.04.20 -mptbase: ioc0: Initiating bringup scsi 1:0:0:0: CD-ROM NECVMWar VMware IDE CDR10 1.00 PQ: 0 ANSI: 5 +mptbase: ioc0: Initiating bringup sr0: scsi3-mmc drive: 1x/1x writer dvd-ram cd/rw xa/form2 cdda tray cdrom: Uniform CD-ROM driver Revision: 3.20 sr 1:0:0:0: Attached scsi generic sg0 type 5 @@ -639,15 +638,15 @@ ehci-pci: EHCI PCI platform driver ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver ohci-pci: OHCI PCI platform driver - sda: sda1 sda2 sda3 sda4 uhci_hcd: USB Universal Host Controller Interface driver i8042: PNP: PS/2 Controller [PNP0303:KBC,PNP0f13:MOUS] at 0x60,0x64 irq 1,12 + sda: sda1 sda2 sda3 sda4 serio: i8042 KBD port at 0x60,0x64 irq 1 serio: i8042 AUX port at 0x60,0x64 irq 12 +mousedev: PS/2 mouse device common for all mice sd 2:0:0:0: [sda] Cache data unavailable sd 2:0:0:0: [sda] Assuming drive cache: write through sd 2:0:0:0: [sda] Attached SCSI disk -mousedev: PS/2 mouse device common for all mice rtc_cmos 00:03: rtc core: registered rtc_cmos as rtc0 rtc_cmos 00:03: alarms up to one month, y3k, 114 bytes nvram, hpet irqs md: linear personality registered for level -1 @@ -673,27 +672,35 @@ Initializing XFRM netlink socket NET: Registered protocol family 17 Key type dns_resolver registered -rtc_cmos 00:03: setting system clock to 2014-04-25 01:12:53 UTC (1398388373) +bio: create slab <bio-1> at 1 +Btrfs loaded +rtc_cmos 00:03: setting system clock to 2014-04-25 00:51:01 UTC (1398387061) input: ImPS/2 Generic Wheel Mouse as /devices/platform/i8042/serio1/input/input3 md: Skipping autodetection of RAID arrays. (raid=autodetect will force) -btrfs: device fsid 2ba08fbc-4b95-46cc-b638-299f16462620 devid 1 transid 74 /dev/root -btrfs: disk space caching is enabled -VFS: Mounted root (btrfs filesystem) on device 0:14. -devtmpfs: mounted -Freeing unused kernel memory: 920K (ffffffff81c83000 - ffffffff81d69000) -Write protecting the kernel read-only data: 12288k -Freeing unused kernel memory: 332K (ffff8800017ad000 - ffff880001800000) -Freeing unused kernel memory: 1492K (ffff880001a8b000 - ffff880001c00000) -mount (1108) used greatest stack depth: 4416 bytes left -udevd (1115) used greatest stack depth: 4400 bytes left -udevd[1116]: starting version 182 -udevadm (1117) used greatest stack depth: 4328 bytes left -btrfs: device fsid 2ba08fbc-4b95-46cc-b638-299f16462620 devid 1 transid 74 /dev/sda2 -btrfs (1175) used greatest stack depth: 4320 bytes left -btrfs: use zlib compression -btrfs: disk space caching is enabled -mount (1176) used greatest stack depth: 4144 bytes left -btrfs: use zlib compression -btrfs: disk space caching is enabled -EXT4-fs (sda1): mounted filesystem without journal. Opts: (null) -rc (1107) used greatest stack depth: 4096 bytes left +VFS: Cannot open root device "sda2" or unknown-block(8,2): error -38 +Please append a correct "root=" boot option; here are the available partitions: +0b00 1048575 sr0 driver: sr +0800 12582912 sda driver: sd + 0801 204800 sda1 00061e1d-01 + 0802 4703232 sda2 00061e1d-02 + 0803 4726784 sda3 00061e1d-03 + 0804 2947072 sda4 00061e1d-04 +Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(8,2) +CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.14.1-mix64 #1 +Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 07/31/2013 + 0000000000008000 ffff88003f8e1dc8 ffffffff817b4c00 0000000000000001 + ffffffff819e9650 ffff88003f8e1e48 ffffffff817b05f3 ffffffff81c37d40 + ffff880000000010 ffff88003f8e1e58 ffff88003f8e1df8 0000000034616473 +Call Trace: + [<ffffffff817b4c00>] dump_stack+0x46/0x58 + [<ffffffff817b05f3>] panic+0xbc/0x1ba + [<ffffffff81c9a3e5>] mount_block_root+0x1f4/0x292 + [<ffffffff81c9a5f9>] mount_root+0x57/0x5b + [<ffffffff81c9a75f>] prepare_namespace+0x162/0x19b + [<ffffffff81c9a117>] kernel_init_freeable+0x1df/0x1ef + [<ffffffff81c99894>] ? do_early_param+0x8c/0x8c + [<ffffffff817ab480>] ? rest_init+0x70/0x70 + [<ffffffff817ab489>] kernel_init+0x9/0xf0 + [<ffffffff817bda8c>] ret_from_fork+0x7c/0xb0 + [<ffffffff817ab480>] ? rest_init+0x70/0x70 +Kernel Offset: 0x0 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffff9fffffff) -- "A mouse is a device used to point at the xterm you want to type in" - A.S.R. Microsoft is to operating systems .... .... what McDonalds is to gourmet cooking Home page: http://marc.merlins.org/ | PGP 1024R/763BE901 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
