Stephen Boyd <sboyd@xxxxxxxxxxxxxx> writes: > Register with the generic sched_clock framework now that it > supports 64 bits. This fixes two problems with the current > sched_clock support for machines using the architected timers. > First off, we don't subtract the start value from subsequent > sched_clock calls so we can potentially start off with > sched_clock returning gigantic numbers. Second, there is no > support for suspend/resume handling so problems such as discussed > in 6a4dae5 (ARM: 7565/1: sched: stop sched_clock() during > suspend, 2012-10-23) can happen without this patch. Finally, it > allows us to move the sched_clock setup into drivers clocksource > out of the arch ports. > > Cc: Christopher Covington <cov@xxxxxxxxxxxxxx> > Cc: Catalin Marinas <catalin.marinas@xxxxxxx> > Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxxxxxx> A boot failure on Exynos5/Arndale showed up in next-20131014[1], and a subsequent bisect has fingered this patch as the culprit. I haven't had a chance to debug this any further, but wanted to share in case someone else can debug. The console log is below, but don't think there is much useful there as it shows nothing after the 'Starting kernel ...' from u-boot. Kevin [1] http://lists.linaro.org/pipermail/kernel-build-reports/2013-October/000651.html Connected to arndale console [channel connected] (~$quit to exit) (user:khilman) is already connected ~$hardreset Command(arndale console)> hardreset (user:khilman) Reboot arndale Reboot: arndale ; phidget 2 0 : off, sleep, on U-Boot 2013.01.-rc1-dirty (Jun 28 2013 - 07:14:48) for ARNDALE5250 CPU: Exynos5250@1000MHz Board: for ARNDALE5250 I2C: ready DRAM: 2 GiB WARNING: Caches not enabled Checking Boot Mode ... SDMMC MMC: EXYNOS DWMMC: 0, EXYNOS DWMMC: 1, EXYNOS DWMMC: 2 In: serial Out: serial Err: serial Net: No ethernet found. (Re)start USB... USB0: USB EHCI 1.00 scanning bus 0 for devices... 4 USB Device(s) found scanning usb for storage devices... 0 Storage Device(s) found scanning usb for ethernet devices... 1 Ethernet Device(s) found Hit any key to stop autoboot: 3 0 ARNDALE5250 # version version U-Boot 2013.01.-rc1-dirty (Jun 28 2013 - 07:14:48) for ARNDALE5250 arm-linux-gnueabi-gcc (Ubuntu/Linaro 4.7.2-1ubuntu1) 4.7.2 GNU ld (GNU Binutils for Ubuntu) 2.22.90.20120919 ARNDALE5250 # setenv bootargs console=tty0 console=ttySAC2,115200n8 rw root=/dev/mmcblk1p3 rootwait rootfstype=ext4 setenv bootargs console=tty0 console=ttySAC2,115200n8 rw root=/dev/mmcblk1p3 rootwait rootfstype=ext4 ARNDALE5250 # setenv netargs 'setenv bootargs ${bootargs} ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}::::192.168.1.254:none' setenv netargs 'setenv bootargs ${bootargs} ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}::::192.168.1.254:none' ARNDALE5250 # if test -n ${initenv}; then run initenv; fi if test -n ${initenv}; then run initenv; fi ARNDALE5250 # if test -n ${preboot}; then run preboot; fi if test -n ${preboot}; then run preboot; fi (Re)start USB... USB0: USB EHCI 1.00 scanning bus 0 for devices... 4 USB Device(s) found scanning usb for storage devices... 0 Storage Device(s) found scanning usb for ethernet devices... 1 Ethernet Device(s) found ARNDALE5250 #setenv autoload no; setenv autoboot no setenv autoload no; setenv autoboot no ARNDALE5250 # dhcp dhcp Waiting for Ethernet connection... done. BOOTP broadcast 1 DHCP client bound to address 192.168.1.171 ARNDALE5250 # setenv serverip 192.168.1.2 setenv serverip 192.168.1.2 ARNDALE5250 # if test -n ${netargs}; then run netargs; fi if test -n ${netargs}; then run netargs; fi ARNDALE5250 # tftp 0x40800000 tmp/arndale-lNb7OG/zImage tftp 0x40800000 tmp/arndale-lNb7OG/zImage Waiting for Ethernet connection... done. Using asx0 device TFTP from server 192.168.1.2; our IP address is 192.168.1.171 Filename 'tmp/arndale-lNb7OG/zImage'. Load address: 0x40800000 Loading: *################################################################# ################################################################# ####################################################### done Bytes transferred = 2709912 (295998 hex) ARNDALE5250 # tftp 0x407c0000 tmp/arndale-lNb7OG/exynos5250-arndale.dtb tftp 0x407c0000 tmp/arndale-lNb7OG/exynos5250-arndale.dtb Waiting for Ethernet connection... done. Using asx0 device TFTP from server 192.168.1.2; our IP address is 192.168.1.171 Filename 'tmp/arndale-lNb7OG/exynos5250-arndale.dtb'. Load address: 0x407c0000 Loading: *### done Bytes transferred = 32949 (80b5 hex) ARNDALE5250 # printenv bootargs printenv bootargs bootargs=console=tty0 console=ttySAC2,115200n8 rw root=/dev/mmcblk1p3 rootwait rootfstype=ext4 ip=192.168.1.171:192.168.1.2:192.168.1.254:255.255.255.0::::192.168.1.254:none ARNDALE5250 # bootz 0x40800000 - 0x407c0000 bootz 0x40800000 - 0x407c0000 ## Flattened Device Tree blob at 407c0000 Booting using the fdt blob at 0x407c0000 Using Device Tree in place at 407c0000, end 407cb0b4 Starting kernel ... ~$off # PYBOOT: Exception: kernel: ERROR: did not start booting. # PYBOOT: Time: 33.50 seconds. # PYBOOT: Result: FAIL -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
