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From: | Guenter Roeck |
Subject: | Re: [Qemu-devel] QEMU+Linux ARMv7A current state |
Date: | Sun, 4 Oct 2015 18:08:31 -0700 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 |
On 10/04/2015 02:38 PM, Beniamino Galvani wrote:
On Sun, Oct 04, 2015 at 02:11:35PM -0700, Guenter Roeck wrote:What is your qemu command line ?qemu-system-arm \ -M cubieboard \ -kernel ../linux/zImage-dtb \ -serial stdio \ -append "console=ttyS0 rw root=/dev/nfs nfsroot=10.0.0.1:/nfs,v3 ip=10.0.0.22" \ -m 1024 \ -net nic,vlan=0,model=allwinner-emac \ -net tap,vlan=0,ifname=tap0,script=net-up.sh \ -s \ -d guest_errors Beniamino
With the mainline kernel and sun4i-a10-cubieboard.dtb, this gives me lots of [ 2.480983] Division by zero in kernel. [ 2.481074] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.3.0-rc3-00055-gdd36d7393d63 #1 [ 2.481250] Hardware name: Allwinner A1X (Device Tree) [ 2.481376] [<c02186a8>] (unwind_backtrace) from [<c0213d84>] (show_stack+0x10/0x14) [ 2.481544] [<c0213d84>] (show_stack) from [<c047cff0>] (dump_stack+0x78/0x94) [ 2.481700] [<c047cff0>] (dump_stack) from [<c047bb38>] (Ldiv0+0x8/0x10) [ 2.481848] [<c047bb38>] (Ldiv0) from [<c0886ab0>] (sun4i_a10_get_mod0_factors+0x74/0xb8) [ 2.482024] [<c0886ab0>] (sun4i_a10_get_mod0_factors) from [<c08867e4>] (clk_factors_determine_rate+0x68/0xfc) [ 2.482231] [<c08867e4>] (clk_factors_determine_rate) from [<c0871070>] (clk_composite_determine_rate+0x94/0x1d0) [ 2.482443] [<c0871070>] (clk_composite_determine_rate) from [<c086c960>] (clk_core_round_rate_nolock+0x84/0xa8) [ 2.482654] [<c086c960>] (clk_core_round_rate_nolock) from [<c086dcbc>] (clk_round_rate+0x38/0x54) [ 2.482845] [<c086dcbc>] (clk_round_rate) from [<c084246c>] (sunxi_mmc_set_ios+0x9c/0x314) [ 2.483023] [<c084246c>] (sunxi_mmc_set_ios) from [<c0814564>] (mmc_power_up+0xf8/0x104) [ 2.483197] [<c0814564>] (mmc_power_up) from [<c08151d8>] (mmc_start_host+0x44/0x6c) [ 2.483363] [<c08151d8>] (mmc_start_host) from [<c0816244>] (mmc_add_host+0x58/0x7c) [ 2.483528] [<c0816244>] (mmc_add_host) from [<c0842b6c>] (sunxi_mmc_probe+0x488/0x590) [ 2.483701] [<c0842b6c>] (sunxi_mmc_probe) from [<c06287d0>] (platform_drv_probe+0x48/0xa4) Do you have a special devicetree file ? It also doesn't seem to accept the qemu "initrd" argument, which is unexpected. Any idea what might be wrong ? Here is the command line I tried. qemu-system-arm \ -M cubieboard -kernel arch/arm/boot/zImage -no-reboot \ -initrd core-image-minimal-qemuarm.cpio \ -append "rdinit=/sbin/init console=ttyS0" \ -nographic -monitor none -serial stdio \ -dtb arch/arm/boot/dts/sun4i-a10-cubieboard.dtb Thanks, Guenter
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