On 04/08/2014 03:32 PM, Vikas Sajjan wrote:
Hi Daniel,
I checked AFTR on v3.14 (
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/log/?id=refs/tags/v3.14)
on exynos5250 based chromebook (exynos5250-snow.dtb)
I am able to hotplug CPU1 (echo 0 > /sys/devices/system/cpu/cpu1/online).
I can see, it enters exynos4_enter_core0_aftr() when I hotplug CPU1.
Hi,
thanks a lot for your help.
I reproduced it on my arndale board with linux-samsung/for-next and on
v3.14.
Used the exynos_defconfig, enabled cpuidle and used exynos5250-arndale.dtb.
I unplugged the cpu1 and then => reboot
echo 0 > /sys/devices/system/cpu/cpu1/online
[ 10.220448] IRQ153 no longer affine to CPU1
[ 10.220595] CPU1: shutdown
# [ 0.000000] PERCPU: Embedded 7 pages/cpu @ee7c1000 s8192 r8192
d12288 u32768
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on.
Total pages: 516624
[ 0.000000] Kernel command line: console=tty0
console=ttySAC2,115200n8 drm_kms_helper.edid_firmware=edid-1920x1080.fw
root=UUID=fd363
[ 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] Memory: 2047332K/2072576K available (3678K kernel code,
228K rwdata, 1148K rodata, 224K init, 263K bss, 25244K reserved, )
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[ 0.000000] fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
[ 0.000000] vmalloc : 0xf0000000 - 0xff000000 ( 240 MB)
[ 0.000000] lowmem : 0xc0000000 - 0xef800000 ( 760 MB)
[ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
[ 0.000000] modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
[ 0.000000] .text : 0xc0008000 - 0xc04bebfc (4827 kB)
[ 0.000000] .init : 0xc04bf000 - 0xc04f7000 ( 224 kB)
[ 0.000000] .data : 0xc04f8000 - 0xc05312c0 ( 229 kB)
[ 0.000000] .bss : 0xc05312cc - 0xc0573274 ( 264 kB)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000] RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2.
[ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
[ 0.000000] NR_IRQS:16 nr_irqs:16 16
[ 0.000000] Exynos5250: clock setup completed, armclk=1000000000
[ 0.000000] Architected cp15 timer(s) running at 24.00MHz (phys).
[ 0.000000] sched_clock: 56 bits at 24MHz, resolution 41ns, wraps
every 2863311519744ns
[ 0.000000] Switching to timer-based delay loop
[ 0.000162] Console: colour dummy device 80x30
[ 0.000510] console [tty0] enabled
[ 0.000537] Calibrating delay loop (skipped), value calculated using
timer frequency.. 48.00 BogoMIPS (lpj=120000)
[ 0.000568] pid_max: default: 32768 minimum: 301
[ 0.000793] Mount-cache hash table entries: 512
[ 0.013127] CPU: Testing write buffer coherency: ok
[ 0.013342] CPU0: update cpu_power 1024
[ 0.013361] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[ 0.013389] Setting up static identity map for 0x4037df28 - 0x4037df80
[ 0.040384] CPU1: Booted secondary processor
[ 0.040423] CPU1: update cpu_power 1024
[ 0.040427] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[ 0.040511] Brought up 2 CPUs
[ 0.040552] SMP: Total of 2 processors activated.
[ 0.040564] CPU: All CPU(s) started in HYP mode.
[ 0.040576] CPU: Virtualization extensions available.
[ 0.041035] devtmpfs: initialized
[ 0.044703] VFP support v0.3: implementor 41 architecture 4 part 30
variant f rev 0
[ 0.045189] pinctrl core: initialized pinctrl subsystem
[ 0.045595] regulator-dummy: no parameters
[ 0.045937] NET: Registered protocol family 16
[ 0.046099] DMA: preallocated 256 KiB pool for atomic coherent
allocations
[ 0.047025] cpuidle: using governor menu
[ 0.053567] exynos-audss-clk 3810000.audss-clock-controller: setup
completed
[ 0.061129] EXYNOS5250 PMU Initialize
[ 0.073526] bio: create slab <bio-0> at 0
[ 0.074229] MAIN_DC: no parameters
[ 0.074479] VDD_33ON_2.8V: 2800 mV
[ 0.074707] hdmi-en: no parameters
[ 0.076562] SCSI subsystem initialized
[ 0.077200] usbcore: registered new interface driver usbfs
[ 0.077339] usbcore: registered new interface driver hub
[ 0.077497] usbcore: registered new device driver usb
[ 0.077983] s3c-i2c 12c60000.i2c: slave address 0x66
[ 0.078004] s3c-i2c 12c60000.i2c: bus frequency set to 18 KHz
[ 0.140328] VDD_ALIVE_1.0V: 1100 mV
[ 0.160365] VDD_28IO_DP_1.35V: 1200 mV
[ 0.180403] VDD_COMMON1_1.8V: 1800 mV
[ 0.195432] VDD_IOPERI_1.8V: 1800 mV
[ 0.215469] VDD_EXT_1.8V: 1800 mV
[ 0.235505] VDD_MPLL_1.1V: 1100 mV
[ 0.255542] VDD_XPLL_1.1V: 1100 mV
[ 0.275579] VDD_COMMON2_1.0V: 1000 mV
[ 0.290609] VDD_33ON_3.0V: 3000 mV
[ 0.310644] VDD_COMMON3_1.8V: 1800 mV
[ 0.330680] VDD_ABB2_1.8V: 1800 mV
[ 0.350718] VDD_USB_3.0V: 3000 mV
[ 0.370756] VDDQ_C2C_W_1.8V: 1800 mV
[ 0.390794] VDD18_ABB0_3_1.8V: 1800 mV
[ 0.410832] VDD10_COMMON4_1.0V: 1000 mV
[ 0.430869] VDD18_HSIC_1.8V: 1800 mV
[ 0.450907] VDDQ_MMC2_3_2.8V: 2800 mV
[ 0.465937] VDD_33ON_2.8V: 2800 mV
[ 0.480966] EXT_33_OFF: 3300 mV
[ 0.495994] EXT_28_OFF: 2800 mV
[ 0.511023] PVDD_LDO25: 1200 mV
[ 0.526050] EXT_18_OFF: 1800 mV
[ 0.541079] vdd_mif: 950 <--> 1200 mV at 1000 mV
[ 0.556107] vdd_arm: 912 <--> 1300 mV at 1100 mV
[ 0.571135] vdd_int: 900 <--> 1200 mV at 1000 mV
[ 0.591173] vdd_g3d: 1000 mV
[ 0.606202] VDD_MEM_1.35V: 750 <--> 1350 mV at 1200 mV
[ 0.621231] PVDD_BUCK7: at 2050 mV
[ 0.636258] PVDD_BUCK8: at 1350 mV
[ 0.646278] VDD_33_OFF_EXT1: 750 <--> 3000 mV at 2850 mV
[ 0.651602] s3c-i2c 12c60000.i2c: i2c-0: S3C I2C adapter
[ 0.651718] s3c-i2c 12c80000.i2c: slave address 0x50
[ 0.651738] s3c-i2c 12c80000.i2c: bus frequency set to 65 KHz
[ 0.652194] s3c-i2c 12c80000.i2c: i2c-2: S3C I2C adapter
[ 0.652298] s3c-i2c 12c90000.i2c: slave address 0x00
[ 0.652316] s3c-i2c 12c90000.i2c: bus frequency set to 65 KHz
[ 0.652766] s3c-i2c 12c90000.i2c: i2c-3: S3C I2C adapter
[ 0.652845] s3c-i2c 12ce0000.i2c: slave address 0x38
[ 0.652864] s3c-i2c 12ce0000.i2c: bus frequency set to 65 KHz
[ 0.653298] s3c-i2c 12ce0000.i2c: i2c-8: S3C I2C adapter
[ 0.653378] s3c-i2c 121d0000.i2c: slave address 0x38
[ 0.653396] s3c-i2c 121d0000.i2c: bus frequency set to 39 KHz
[ 0.653832] s3c-i2c 121d0000.i2c: i2c-9: S3C I2C adapter
[ 0.655268] Switched to clocksource arch_sys_counter
[ 0.668675] NET: Registered protocol family 2
[ 0.669130] TCP established hash table entries: 8192 (order: 3, 32768
bytes)
[ 0.669217] TCP bind hash table entries: 8192 (order: 5, 163840 bytes)
[ 0.669391] TCP: Hash tables configured (established 8192 bind 8192)
[ 0.669445] TCP: reno registered
[ 0.669463] UDP hash table entries: 512 (order: 2, 24576 bytes)
[ 0.669509] UDP-Lite hash table entries: 512 (order: 2, 24576 bytes)
[ 0.669702] NET: Registered protocol family 1
[ 0.669893] Trying to unpack rootfs image as initramfs...
[ 0.766244] Freeing initrd memory: 2280K (c2001000 - c223b000)
[ 0.767913] futex hash table entries: 512 (order: 3, 32768 bytes)
[ 0.768229] bounce pool size: 64 pages
[ 0.782215] ROMFS MTD (C) 2007 Red Hat, Inc.
[ 0.782471] msgmni has been set to 1443
[ 0.782988] io scheduler noop registered
[ 0.783004] io scheduler deadline registered
[ 0.783497] io scheduler cfq registered (default)
[ 0.788490] exynos-dp 145b0000.dp-controller: unable to find phy
[ 0.788518] platform 145b0000.dp-controller: Driver exynos-dp
requests probe deferral
[ 0.794020] dma-pl330 121a0000.pdma: Loaded driver for PL330 DMAC-2364208
[ 0.794042] dma-pl330 121a0000.pdma: DBUFF-32x4bytes
Num_Chans-8 Num_Peri-32 Num_Events-32
[ 0.798710] dma-pl330 121b0000.pdma: Loaded driver for PL330 DMAC-2364208
[ 0.798732] dma-pl330 121b0000.pdma: DBUFF-32x4bytes
Num_Chans-8 Num_Peri-32 Num_Events-32
[ 0.799988] dma-pl330 10800000.mdma: Loaded driver for PL330 DMAC-2364208
[ 0.800009] dma-pl330 10800000.mdma: DBUFF-64x8bytes
Num_Chans-8 Num_Peri-1 Num_Events-32
[ 0.801290] dma-pl330 11c10000.mdma: Loaded driver for PL330 DMAC-2364208
[ 0.801310] dma-pl330 11c10000.mdma: DBUFF-64x8bytes
Num_Chans-8 Num_Peri-1 Num_Events-32
[ 0.889992] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[ 0.892000] 12c00000.serial: ttySAC0 at MMIO 0x12c00000 (irq = 83,
base_baud = 0) is a S3C6400/10
[ 0.892377] 12c10000.serial: ttySAC1 at MMIO 0x12c10000 (irq = 84,
base_baud = 0) is a S3C6400/10
[ 0.892759] 12c20000.serial: ttySAC2 at MMIO 0x12c20000 (irq = 85,
base_baud = 0) is a S3C6400/10
[ 1.670559] console [ttySAC2] enabled
[ 1.674585] 12c30000.serial: ttySAC3 at MMIO 0x12c30000 (irq = 86,
base_baud = 0) is a S3C6400/10
[ 1.692699] brd: module loaded
[ 1.698718] loop: module loaded
[ 1.701256] usbcore: registered new interface driver asix
[ 1.705903] usbcore: registered new interface driver ax88179_178a
[ 1.711976] usbcore: registered new interface driver cdc_ether
[ 1.717787] usbcore: registered new interface driver r815x
[ 1.723269] usbcore: registered new interface driver smsc75xx
[ 1.729002] usbcore: registered new interface driver smsc95xx
[ 1.734708] usbcore: registered new interface driver net1080
[ 1.740364] usbcore: registered new interface driver cdc_subset
[ 1.746252] usbcore: registered new interface driver zaurus
[ 1.751843] usbcore: registered new interface driver cdc_ncm
[ 1.758245] dwc3 12000000.dwc3: no usb2 phy configured
[ 1.762472] platform 12000000.dwc3: Driver dwc3 requests probe deferral
[ 1.769390] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 1.775567] ehci-exynos: EHCI EXYNOS driver
[ 1.779837] unable to find transceiver of type USB2 PHY
[ 1.784947] exynos-ehci 12110000.usb: no platform data or transceiver
defined
[ 1.792066] platform 12110000.usb: Driver exynos-ehci requests probe
deferral
[ 1.799448] usbcore: registered new interface driver usb-storage
[ 1.805626] samsung-usb3phy 12100000.usbphy: Can't get usb-phy sysreg
cfg register
[ 1.813271] mousedev: PS/2 mouse device common for all mice
[ 1.818949] s3c-rtc 101e0000.rtc: rtc disabled, re-enabling
[ 1.824152] s3c-rtc 101e0000.rtc: rtc core: registered s3c as rtc0
[ 1.830003] s3c-rtc 101e0000.rtc: warning: invalid RTC value so
initializing it
[ 1.838186] device-mapper: ioctl: 4.27.0-ioctl (2013-10-30)
initialised: dm-de...@redhat.com
[ 1.845812] sdhci: Secure Digital Host Controller Interface driver
[ 1.851862] sdhci: Copyright(c) Pierre Ossman
[ 1.856406] Synopsys Designware Multimedia Card Interface Driver
[ 1.862711] dwmmc_exynos 12200000.mmc: Using internal DMA controller.
[ 1.868623] dwmmc_exynos 12200000.mmc: Version ID is 241a
[ 1.874109] dwmmc_exynos 12200000.mmc: DW MMC controller at irq 107,
32 bit host data width, 128 deep fifo
[ 1.910297] dwmmc_exynos 12200000.mmc: 1 slots initialized
[ 1.914562] dwmmc_exynos 12220000.mmc: Using internal DMA controller.
[ 1.920781] dwmmc_exynos 12220000.mmc: Version ID is 241a
[ 1.927261] dwmmc_exynos 12220000.mmc: DW MMC controller at irq 109,
32 bit host data width, 128 deep fifo
[ 1.965297] dwmmc_exynos 12220000.mmc: 1 slots initialized
[ 1.971127] usbcore: registered new interface driver usbhid
[ 1.975228] usbhid: USB HID core driver
[ 1.979226] TCP: cubic registered
[ 1.982364] NET: Registered protocol family 17
[ 1.986819] NET: Registered protocol family 15
[ 1.991283] Registering SWP/SWPB emulation handler
[ 2.003036] mmc0: BKOPS_EN bit is not set
[ 2.006888] mmc_host mmc0: Bus speed (slot 0) = 50000000Hz (slot req
52000000Hz, actual 50000000HZ div = 0)
[ 2.015394] EXT_28_OFF: disabling
[ 2.018807] mmc_host mmc0: Bus speed (slot 0) = 100000000Hz (slot req
52000000Hz, actual 50000000HZ div = 1)
[ 2.028501] mmc0: new high speed DDR MMC card at address 0001
[ 2.034499] isa bounce pool size: 16 pages
[ 2.038289] mmcblk0: mmc0:0001 M4G1FA 3.72 GiB
[ 2.039592] VDD_33ON_2.8V: disabling
[ 2.046459] mmcblk0boot0: mmc0:0001 M4G1FA partition 1 1.00 MiB
[ 2.046462] exynos-dp 145b0000.dp-controller: unable to find phy
[ 2.046485] platform 145b0000.dp-controller: Driver exynos-dp
requests probe deferral
[ 2.066149] mmcblk0boot1: mmc0:0001 M4G1FA partition 2 1.00 MiB
[ 2.072039] mmcblk0rpmb: mmc0:0001 M4G1FA partition 3 128 KiB
[ 2.079125] mmcblk0: p1 p2 p3 p4
[ 2.083379] mmcblk0boot1: unknown partition table
[ 2.087640] mmcblk0boot0: unknown partition table
[ 2.124893] mmc_host mmc1: Bus speed (slot 0) = 50000000Hz (slot req
50000000Hz, actual 50000000HZ div = 0)
[ 2.133243] mmc1: new high speed SDHC card at address 1234
[ 2.139010] mmcblk1: mmc1:1234 SA04G 3.67 GiB
[ 2.144781] mmcblk1: p1 p2 p3
[ 2.247302] samsung-usb2phy 12130000.usbphy: Already power on PHY
[ 2.251948] unable to find transceiver
[ 2.255665] exynos-ehci 12110000.usb: EHCI Host Controller
[ 2.261156] exynos-ehci 12110000.usb: new USB bus registered,
assigned bus number 1
[ 2.268838] exynos-ehci 12110000.usb: irq 103, io mem 0x12110000
[ 2.280294] exynos-ehci 12110000.usb: USB 2.0 started, EHCI 1.00
[ 2.285642] hub 1-0:1.0: USB hub found
[ 2.288583] hub 1-0:1.0: 3 ports detected
[ 2.292965] exynos-dp 145b0000.dp-controller: unable to find phy
[ 2.298569] platform 145b0000.dp-controller: Driver exynos-dp
requests probe deferral
[ 2.307380] input: gpio_keys.4 as /devices/gpio_keys.4/input/input0
[ 2.313083] s3c-rtc 101e0000.rtc: setting system clock to 2000-01-01
00:00:01 UTC (946684801)
[ 2.321189] exynos-dp 145b0000.dp-controller: unable to find phy
[ 2.327125] platform 145b0000.dp-controller: Driver exynos-dp
requests probe deferral
[ 2.335530] Freeing unused kernel memory: 224K (c04bf000 - c04f7000)
[ 2.380582] systemd-udevd[1257]: starting version 204
[ 2.786139] EXT4-fs (mmcblk1p3): mounted filesystem with ordered data
mode. Opts: (null)
[ 3.542945] random: nonblocking pool is initialized
[ 3.546909] EXT4-fs (mmcblk1p3): re-mounted. Opts: data=ordered
[ 10.848487] Unable to handle kernel paging request at virtual address
410fc0f4
[ 12.070655] pgd = c0004000
[ 12.073340] [410fc0f4] *pgd=00000000
[ 12.076901] Internal error: Oops: 80000005 [#1] PREEMPT SMP ARM
[ 12.082802] Modules linked in:
[ 12.085839] CPU: 0 PID: 0 Comm: swapper/0 Not tainted
3.14.0-rc1-00079-g82cd447 #467
[ 12.093571] task: c0502ce8 ti: c04f8000 task.ti: c04f8000
[ 12.098948] PC is at 0x410fc0f4
[ 12.102076] LR is at cpu_init+0x28/0x70
[ 12.105892] pc : [<410fc0f4>] lr : [<c0010428>] psr: 800001d3
[ 12.105892] sp : c04f9f48 ip : 00000000 fp : ee7c1158
[ 12.117356] r10: c05311d9 r9 : 410fc0f4 r8 : ee7c1158
[ 12.122557] r7 : c05046fc r6 : ed830c40 r5 : c0019cd0 r4 : 00000000
[ 12.129068] r3 : 2e2cc000 r2 : 405316c0 r1 : 6e0c006a r0 : 00000000
[ 12.135579] Flags: Nzcv IRQs off FIQs off Mode SVC_32 ISA ARM
Segment kernel
[ 12.143047] Control: 10c5387d Table: 6e0c006a DAC: 00000015
[ 12.148772] Process swapper/0 (pid: 0, stack limit = 0xc04f8240)
[ 12.154761] Stack: (0xc04f9f48 to 0xc04fa000)
[ 12.159101] 9f40: 00000000 00000000 00000018
c04f9f68 c02c52c4 c02a9c50
[ 12.167265] 9f60: 60000013 ffffffff dabfc321 00000000 ee7c1690
ee7c1158 c056bcbc ee7c1158
[ 12.175425] 9f80: c04f68c0 c04f68c0 00000000 c04f8000 c0500494
c0380aac c05311d9 00000001
[ 12.183584] 9fa0: 410fc0f4 c05311d9 c04f9fb4 c037a454 00000000
c00588c4 c04e1b78 c04bfb08
[ 12.191743] 9fc0: ffffffff ffffffff c04bf57c 00000000 00000000
c04e1b78 00000000 10c5387d
[ 12.199902] 9fe0: c050040c c04e1b74 c0503d44 4000406a 00000000
40008074 00000000 00000000
[ 12.208067] [<c0010428>] (cpu_init) from [<00000000>] ( (null))
[ 12.214046] Code: bad PC value
[ 12.217083] ---[ end trace 6b959f570500b802 ]---
[ 12.221683] Kernel panic - not syncing: Attempted to kill the idle task!
[ 13.316370] SMP: failed to stop secondary CPUs
On Tue, Apr 8, 2014 at 4:31 PM, Tomasz Figa <t.f...@samsung.com> wrote:
Hi Daniel,
On 04.04.2014 15:06, Daniel Lezcano wrote:
Hi,
I tried to make the idle AFTR state working on arndale 5250 but that
leads to a kernel reboot and crash.
How to reproduce ?
echo 0 > /sys/devices/system/cpu/cpu1/online
Reproductible on v3.14 and samsung/for-next
Any ideas ?
Added some people that I know that have been working with Arndale.
Best regards,
Tomasz
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