Re: [Xen-devel] 3.16-rc2 WARNING: CPU: 0 PID: 0 at arch/x86/xen/multicalls.c:129 xen_mc_flush+0x1ab/0x1c0()

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Jun 26, 2014 7:57 AM, Sander Eikelenboom <linux@xxxxxxxxxxxxxx> wrote:
>
> Hi, 
>
> Got the warning below on dom0 boot with a 3.16-rc2 kernel, doesn't seem to do 
> much immediate harm: 
>
> [ÂÂ 12.723393] Calibrating delay loop (skipped), value calculated using timer 
> frequency.. 6402.05 BogoMIPS (lpj=10667280) 
> [ÂÂ 12.723414] pid_max: default: 32768 minimum: 301 
> [ÂÂ 12.723433] ACPI: Core revision 20140424 
> [ÂÂ 12.740681] ACPI: All ACPI Tables successfully acquired 
> [ÂÂ 12.743145] ------------[ cut here ]------------ 
> [ÂÂ 12.743170] WARNING: CPU: 0 PID: 0 at arch/x86/xen/multicalls.c:129 
> xen_mc_flush+0x1ab/0x1c0() 
> [ÂÂ 12.743186] Modules linked in: 
> [ÂÂ 12.743196] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.16.0-rc2-20140626+ 
> #1 
> [ÂÂ 12.743209] Hardware name: MSI MS-7640/890FXA-GD70 (MS-7640)Â , BIOS 
> V1.8B1 09/13/2010 
> [ÂÂ 12.743223]Â 0000000000000009 ffffffff82203d88 ffffffff81afdba7 
> ffffffff822184e0 
> [ÂÂ 12.743242]Â 0000000000000000 ffffffff82203dc8 ffffffff810bfdb2 
> ffffffff81007858 
> [ÂÂ 12.743261]Â 0000000000000000 0000000000000001 0000000000000000 
> ffff88005f60b120 
> [ÂÂ 12.743280] Call Trace: 
> [ÂÂ 12.743290]Â [<ffffffff81afdba7>] dump_stack+0x46/0x58 
> [ÂÂ 12.743302]Â [<ffffffff810bfdb2>] warn_slowpath_common+0x82/0xb0 
> [ÂÂ 12.743316]Â [<ffffffff81007858>] ? pte_pfn_to_mfn+0x88/0xa0 
> [ÂÂ 12.743328]Â [<ffffffff810bfdf5>] warn_slowpath_null+0x15/0x20 
> [ÂÂ 12.743341]Â [<ffffffff81004b6b>] xen_mc_flush+0x1ab/0x1c0 
> [ÂÂ 12.743353]Â [<ffffffff810072fd>] xen_alloc_pte+0x1ad/0x220 
> [ÂÂ 12.743364]Â [<ffffffff8100886b>] ? xen_make_pte+0x1b/0x70 
> [ÂÂ 12.743378]Â [<ffffffff81014a6f>] init_espfix_ap+0x22f/0x3f0 
> [ÂÂ 12.743392]Â [<ffffffff8232079d>] init_espfix_bsp+0xee/0xf3 
> [ÂÂ 12.743404]Â [<ffffffff82317ffe>] start_kernel+0x3d6/0x441 
> [ÂÂ 12.743416]Â [<ffffffff82317a27>] ? set_init_arg+0x58/0x58 
> [ÂÂ 12.743428]Â [<ffffffff82317608>] x86_64_start_reservations+0x2a/0x2c 
> [ÂÂ 12.743441]Â [<ffffffff8231af8e>] xen_start_kernel+0x59b/0x59d 
> [ÂÂ 12.743468] ---[ end trace 20d3292a87f35842 ]--- 
> [ÂÂ 12.743943] Dentry cache hash table entries: 262144 (order: 9, 2097152 
> bytes) 
> [ÂÂ 12.744726] Inode-cache hash table entries: 131072 (order: 8, 1048576 
> bytes) 
> [ÂÂ 12.745043] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes) 
> [ÂÂ 12.745064] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 
> bytes) 
> [ÂÂ 12.745709] Initializing cgroup subsys freezer 
> [ÂÂ 12.745733] Initializing cgroup subsys blkio 
>
> If you need more info / complete logs, give me a call.

Your full serial log would be quite useful!

Thanks.
> -- 
>
> Sander 
>
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