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Date: Wed, 11 Mar 2015 17:33:11 +0300 From: Stas Sergeev <stsp@...t.ru> To: Russell King - ARM Linux <linux@....linux.org.uk>, Gregory CLEMENT <gregory.clement@...e-electrons.com> CC: Andrew Morton <akpm@...ux-foundation.org>, Linux kernel <linux-kernel@...r.kernel.org>, linux-arm-kernel@...ts.infradead.org Subject: Re: [PATCH] n_tty: use kmalloc() instead of vmalloc() to avoid crash on armada-xp 11.03.2015 16:14, Russell King - ARM Linux пишет: > On Wed, Mar 11, 2015 at 01:44:57PM +0100, Gregory CLEMENT wrote: >> Hi Stas, >> >> On 10/03/2015 17:54, Stas Sergeev wrote: >>> Hello, the patch below is needed for a successful boot on armada-xp. >>> >> I am really surprised by this patch because I used the Armada XP based >> board in a daily base and I never saw this issue. > Can you provide some details about your board - does it have 8GB of > memory, ranging from 0-0xf0000000, and 4G-8G ? Yes, there should be 8G, here's the boot log from marvell kernel that boots fine and works fine: [ 0.000000] Booting Linux on physical CPU 0 [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Linux version 3.2.58-1-armadaxp (root@...t-010-100) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #0 SMP Thu Dec 18 124 [ 0.000000] CPU: Marvell - PJ4Bv7 Processor [562f5842] revision 2 (ARMv7), cr=30c73c7d [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction cache [ 0.000000] Machine: Marvell Armada XP GP Board [ 0.000000] Using UBoot passing parameters structure [ 0.000000] bootconsole [earlycon0] enabled [ 0.000000] Reserving training memory: base=0x (null) size=0x2800 [ 0.000000] Reserving training memory: base=0x80000000 size=0x2800 [ 0.000000] Reserving training memory: base=0xc0000000 size=0x2800 [ 0.000000] Reserving training memory: base=0xe0000000 size=0x2800 [ 0.000000] MEMBLOCK configuration: [ 0.000000] memory size = 0x1f0000000 [ 0.000000] memory.cnt = 0x2 [ 0.000000] memory[0x0] [0x00000000000000-0x000000efffffff], 0xf0000000 bytes [ 0.000000] memory[0x1] [0x00000100000000-0x000001ffffffff], 0x100000000 bytes [ 0.000000] reserved.cnt = 0x7 [ 0.000000] reserved[0x0] [0x00000000000000-0x000000000027ff], 0x2800 bytes [ 0.000000] reserved[0x1] [0x00000000003000-0x00000000007fff], 0x5000 bytes [ 0.000000] reserved[0x2] [0x000000000081e0-0x000000009ef02f], 0x9e6e50 bytes [ 0.000000] reserved[0x3] [0x00000001100040-0x0000000142fad3], 0x32fa94 bytes [ 0.000000] reserved[0x4] [0x00000080000000-0x000000800027ff], 0x2800 bytes [ 0.000000] reserved[0x5] [0x000000c0000000-0x000000c00027ff], 0x2800 bytes [ 0.000000] reserved[0x6] [0x000000e0000000-0x000000e00027ff], 0x2800 bytes [ 0.000000] Memory policy: ECC disabled, Data cache writealloc [ 0.000000] SMP: init cpus [ 0.000000] PERCPU: Embedded 7 pages/cpu @c5442000 s7104 r8192 d13376 u32768 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 2015232 [ 0.000000] Kernel command line: console=ttyS0,115200 earlyprintk=ttyS0 root=/dev/sda2 rw pm_disable memblock=debug [ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes) [ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes) [ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes) [ 0.000000] allocated 33554432 bytes of page_cgroup [ 0.000000] please try 'cgroup_disable=memory' option if you don't want memory cgroups [ 0.000000] Memory: 3840MB 4096MB = 7936MB total [ 0.000000] Memory: 8015704k/8015704k available, 110760k reserved, 7299036K highmem [ 0.000000] Virtual kernel memory layout: [ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB) [ 0.000000] fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB) [ 0.000000] vmalloc : 0xf3000000 - 0xfa800000 ( 120 MB) [ 0.000000] lowmem : 0xc0000000 - 0xf2800000 ( 808 MB) [ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB) [ 0.000000] modules : 0xbf000000 - 0xbfe00000 ( 14 MB) [ 0.000000] .text : 0xc0008000 - 0xc08b4000 (8880 kB) [ 0.000000] .init : 0xc08b4000 - 0xc08fabc0 ( 283 kB) [ 0.000000] .data : 0xc08fc000 - 0xc0948a20 ( 307 kB) [ 0.000000] .bss : 0xc0948a44 - 0xc09ef030 ( 666 kB) [ 0.000000] Hierarchical RCU implementation. [ 0.000000] NR_IRQS:211 [ 0.000000] Initializing ArmadaXP SOC Timer 0 [ 0.000000] sched_clock: 32 bits at 25MHz, resolution 40ns, wraps every 171798ms [ 117.562527] Calibrating delay loop... 1594.16 BogoMIPS (lpj=7970816) [ 117.655298] pid_max: default: 32768 minimum: 301 [ 117.660091] Security Framework initialized [ 117.664285] AppArmor: AppArmor initialized [ 117.668578] Mount-cache hash table entries: 512 [ 117.673594] Initializing cgroup subsys cpuacct [ 117.678123] Initializing cgroup subsys memory [ 117.682584] Initializing cgroup subsys devices [ 117.687093] Initializing cgroup subsys freezer [ 117.691601] Initializing cgroup subsys net_cls [ 117.696117] Initializing cgroup subsys blkio [ 117.700528] CPU: Testing write buffer coherency: ok [ 117.705627] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000 [ 117.711350] SMP: prepare CPUs (4 cores) [ 117.715539] Setting Clocks for secondary CPUs [ 117.720891] SMP: CPU 0 Waking up CPU 1 [ 117.732639] CPU1: Booted secondary processor [ 117.772428] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001 [ 117.772858] SMP: CPU 0 Waking up CPU 2 [ 117.794638] CPU2: Booted secondary processor [ 117.832429] CPU2: thread -1, cpu 2, socket 0, mpidr 80000002 [ 117.832864] SMP: CPU 0 Waking up CPU 3 [ 117.857151] CPU3: Booted secondary processor [ 117.892429] CPU3: thread -1, cpu 3, socket 0, mpidr 80000003 [ 117.892493] Brought up 4 CPUs [ 117.905580] SMP: Total of 4 processors activated (6376.65 BogoMIPS). [ 117.912745] devtmpfs: initialized [ 117.921130] xor: measuring software checksum speed [ 117.972401] arm4regs : 1544.800 MB/sec [ 118.022399] 8regs : 1147.600 MB/sec [ 118.072399] 32regs : 1472.000 MB/sec [ 118.076648] xor: using function: arm4regs (1544.800 MB/sec) [ 118.083158] print_constraints: dummy: [ 118.087341] NET: Registered protocol family 16 [ 118.092028] ARMADA XP error handling module was loaded [ 118.098986] Aurora: Working in ARMv7 mode [ 118.103086] L0 cache Enabled [ 118.106038] Speculative Prefetch Disabled [ 118.110127] Aurora L2 Cache Enabled [ 118.113963] Support IO coherency. [ 118.220261] [ 118.221830] Marvell Armada-XP RD-AXP-GP rev 1.0 Board - Soc: MV78460 B0 LE [ 118.229060] Detected Tclk 250000000, SysClk 800000000, FabricClk 800000000, PClk 1600000000 [ 118.237634] LSP version: linux-3.2.58-2014_T2.0 [ 118.242407] Marvell Armada-XP Unique Device ID: 00196621A784C374 (UniqeID_val0: A784C374, UniqeID_val1: 00196621) [ 118.252880] [ 118.255972] Register platform device: mv_neta_port_0 [ 118.261098] Register platform device: mv_neta_port_2 [ 118.266868] registered dev#0 asa ehci_marvell [ 118.271569] Marvell USB EHCI Host controller #0: f20f4000 [ 118.277140] registered dev#1 asa ehci_marvell [ 118.281838] Marvell USB EHCI Host controller #1: f2144e00 [ 118.287402] registered dev#2 asa ehci_marvell [ 118.292100] Marvell USB EHCI Host controller #2: f2144c00 [ 118.310312] bio: create slab <bio-0> at 0 [ 118.482530] raid6: int32x1 182 MB/s [ 118.652535] raid6: int32x2 281 MB/s [ 118.822632] raid6: int32x4 265 MB/s [ 118.992396] raid6: int32x8 309 MB/s [ 118.996216] raid6: using algorithm int32x8 (309 MB/s) [ 119.002219] vgaarb: loaded [ 119.006888] SCSI subsystem initialized [ 119.011362] usbcore: registered new interface driver usbfs [ 119.017071] usbcore: registered new interface driver hub [ 119.022564] usbcore: registered new device driver usb [ 119.029036] NetLabel: Initializing [ 119.032565] NetLabel: domain hash size = 128 [ 119.036985] NetLabel: protocols = UNLABELED CIPSOv4 [ 119.042032] NetLabel: unlabeled traffic allowed by default [ 119.047954] Switching to clocksource axp_clocksource [ 119.053160] FS-Cache: Loaded [ 119.056149] AppArmor: AppArmor Filesystem Enabled [ 119.062592] NET: Registered protocol family 2 [ 119.067119] IP route cache hash table entries: 32768 (order: 5, 131072 bytes) [ 119.074573] TCP established hash table entries: 131072 (order: 8, 1048576 bytes) [ 119.082855] TCP bind hash table entries: 65536 (order: 7, 524288 bytes) [ 119.089918] TCP: Hash tables configured (established 131072 bind 65536) [ 119.096594] TCP reno registered [ 119.099808] UDP hash table entries: 512 (order: 2, 16384 bytes) [ 119.105806] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes) [ 119.112374] NET: Registered protocol family 1 [ 119.116974] RPC: Registered named UNIX socket transport module. [ 119.122951] RPC: Registered udp transport module. [ 119.127726] RPC: Registered tcp transport module. [ 119.132492] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 119.139102] Trying to unpack rootfs image as initramfs... [ 119.257367] Freeing initrd memory: 3260K [ 119.261366] PCI-E: Checking physical bus #0 (controller #8): Enabled - Link UP [ 119.268817] PCI-E: Checking physical bus #1 (controller #9): Enabled - No Link [ 119.276801] PCI: bus0: Fast back to back transfers disabled [ 119.282644] pci 0000:00:00.0: BAR 2: assigned [mem 0xf3000000-0xf303ffff 64bit] [ 119.290027] pci 0000:00:00.0: BAR 2: set to [mem 0xf3000000-0xf303ffff 64bit] (PCI address [0xf3000000-0xf303ffff]) [ 119.300509] pci 0000:00:00.0: BAR 0: assigned [mem 0xf3040000-0xf305ffff 64bit] [ 119.307883] pci 0000:00:00.0: BAR 0: set to [mem 0xf3040000-0xf305ffff 64bit] (PCI address [0xf3040000-0xf305ffff]) [ 119.318367] pci 0000:00:00.0: BAR 6: assigned [mem 0xf3060000-0xf306ffff pref] -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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