Forward to ARM and Tegra mail list. ---------- Forwarded message ---------- From: Bryan Wu <cooloney@xxxxxxxxx> Date: Mon, Apr 29, 2013 at 11:15 AM Subject: Tegra 30 System hangs because of commit "pinctrl: move subsystem mutex to pinctrl_dev struct" To: patrice.chotard@xxxxxx, Linus Walleij <linus.walleij@xxxxxxxxxx> Cc: Stephen Warren <swarren@xxxxxxxxxxxxx>, "linux-next@xxxxxxxxxxxxxxx" <linux-next@xxxxxxxxxxxxxxx> Hi Patrice and Linus, I'm running linux-next on my Tegra 30 system everyday. But since next-20130426 release, the linux-next kernel will hang on my Tegra 30 boards like Cardhu and Beaver. After some bisect and comparing to next-20130424, I found the commit "pinctrl: move subsystem mutex to pinctrl_dev struct" introduced this issue. If I simply revert this patch in next-20130429, system boots up as before. Could you please help to check this? ---- Uncompressing Linux... done, booting the kernel. [ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Linux version 3.9.0-rc8-09782-ga6df01a (roc@roc-HP-desktop) (gcc version 4.7.3 (Ubuntu/Linaro 4.7.3-1ubuntu1) ) #20 SMP PREEMPT Mon Apr 29 10:09:07 PDT 2013 [ 0.000000] CPU: ARMv7 Processor [412fc099] revision 9 (ARMv7), cr=10c5387d [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache [ 0.000000] Machine: NVIDIA Tegra30 (Flattened Device Tree), model: NVIDIA Tegra30 Beaver evaluation board [ 0.000000] bootconsole [earlycon0] enabled [ 0.000000] cma: CMA: reserved 16 MiB at ae800000 [ 0.000000] Memory policy: ECC disabled, Data cache writealloc [ 0.000000] On node 0 totalpages: 524032 [ 0.000000] free_area_init_node: node 0, pgdat c070b7c0, node_mem_map c075c000 [ 0.000000] Normal zone: 1520 pages used for memmap [ 0.000000] Normal zone: 0 pages reserved [ 0.000000] Normal zone: 194560 pages, LIFO batch:31 [ 0.000000] HighMem zone: 2574 pages used for memmap [ 0.000000] HighMem zone: 329472 pages, LIFO batch:31 [ 0.000000] fuse_speedo_calib: ATE prog ver 3.3 [ 0.000000] Tegra30: CPU Speedo ID 5, Soc Speedo ID 2 [ 0.000000] Tegra Revision: A03 SKU: 128 CPU Process: 4 Core Process: 0 [ 0.000000] L310 cache controller enabled [ 0.000000] l2x0: 8 ways, CACHE_ID 0x410000c7, AUX_CTRL 0x7e480001, Cache size: 1048576 B [ 0.000000] PERCPU: Embedded 8 pages/cpu @c176e000 s9280 r8192 d15296 u32768 [ 0.000000] pcpu-alloc: s9280 r8192 d15296 u32768 alloc=8*4096 [ 0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 522512 [ 0.000000] Kernel command line: console=ttyS0,115200n8 root=/dev/mmcblk0p1 loglevel=8 rootwait rw earlyprintk [ 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: 2047MB = 2047MB total [ 0.000000] Memory: 2054764k/2054764k available, 41364k reserved, 1317888K highmem [ 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 - 0xc0695268 (6709 kB) [ 0.000000] .init : 0xc0696000 - 0xc06c8440 ( 202 kB) [ 0.000000] .data : 0xc06ca000 - 0xc070d020 ( 269 kB) [ 0.000000] .bss : 0xc070d020 - 0xc075bb88 ( 315 kB) [ 0.000000] Preemptible hierarchical RCU implementation. [ 0.000000] NR_IRQS:16 nr_irqs:16 16 [ 0.000000] sched_clock: 32 bits at 1000kHz, resolution 1000ns, wraps every 4294967ms [ 0.000000] Console: colour dummy device 80x30 [ 0.005231] Calibrating delay loop... 1993.93 BogoMIPS (lpj=9969664) [ 0.062959] pid_max: default: 32768 minimum: 301 [ 0.068223] Mount-cache hash table entries: 512 [ 0.083957] Initializing cgroup subsys debug [ 0.088428] Initializing cgroup subsys freezer [ 0.093220] CPU: Testing write buffer coherency: ok [ 0.098680] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000 [ 0.104632] Setting up static identity map for 0xc04d9dc8 - 0xc04d9e4c [ 0.166265] CPU1: Booted secondary processor [ 0.224635] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001 [ 0.246245] CPU2: Booted secondary processor [ 0.304634] CPU2: thread -1, cpu 2, socket 0, mpidr 80000002 [ 0.326206] CPU3: Booted secondary processor [ 0.384634] CPU3: thread -1, cpu 3, socket 0, mpidr 80000003 [ 0.384730] Brought up 4 CPUs [ 0.418869] SMP: Total of 4 processors activated (7975.73 BogoMIPS). [ 0.425471] CPU: All CPU(s) started in SVC mode. [ 0.431323] devtmpfs: initialized [ 0.449863] pinctrl core: initialized pinctrl subsystem [ 0.455839] regulator-dummy: no parameters [ 0.461447] NET: Registered protocol family 16 [ 0.469728] DMA: preallocated 256 KiB pool for atomic coherent allocations [ 0.487314] No ATAGs? [ 0.489478] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers. [ 0.498053] hw-breakpoint: maximum watchpoint size is 4 bytes. ---- System hangs here, no output at all. Any suggestions are welcome, I can test that on my hardware. Thanks, -Bryan -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
