Messages in this thread | | | From | Bjorn Helgaas <> | Date | Tue, 30 Sep 2014 13:13:14 -0600 | Subject | Re: [perf/x86/intel/uncore] WARNING: CPU: 3 PID: 1 at arch/x86/mm/ioremap.c:183 __ioremap_caller+0x24c/0x2d0() |
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On Tue, Sep 30, 2014 at 8:11 AM, Stephane Eranian <eranian@google.com> wrote: > Hi, > > On Tue, Sep 30, 2014 at 3:45 PM, Fengguang Wu <fengguang.wu@intel.com> wrote: >> >> Hi Stephane, >> >> FYI, we noticed the below WARNING on >> >> git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master >> commit 521e8bac67a71a6544274f39d5c61473e0e54ac0 ("perf/x86/intel/uncore: Update support for client uncore IMC PMU") >> >> +-------------------------+------------+------------+ >> | | b10fc1c3e3 | 521e8bac67 | >> +-------------------------+------------+------------+ >> | boot_successes | 10 | 1 | >> | boot_failures | 0 | 9 | >> | BUG:kernel_test_crashed | 0 | 9 | >> +-------------------------+------------+------------+ >> >> >> [ 6.773342] software IO TLB [mem 0xa5015000-0xa9015000] (64MB) mapped at [ffff8800a5015000-ffff8800a9014fff] >> [ 6.784010] resource sanity check: requesting [mem 0xfed10000-0xfed15fff], which spans more than reserved [mem 0xfed10000-0xfed13fff] >> [ 6.784951] ------------[ cut here ]------------ >> [ 6.785331] WARNING: CPU: 3 PID: 1 at arch/x86/mm/ioremap.c:183 __ioremap_caller+0x24c/0x2d0() >> [ 6.786149] Info: mapping multiple BARs. Your kernel is fine. > > > This is the typical problem noted in the past. There is a BIOS problem > with the way the size of the IMC BAR is reported. > I copied Bjorn here. He will be more able to explain the problem to you.
Here's one fix for this: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cb171f7abb9a
It sounds like this is a similar but slightly different problem. Do you have a complete dmesg log? That would have more clues about why the cb171f7abb9a change didn't fix this one.
>> [ 6.786601] Modules linked in: >> [ 6.787046] CPU: 3 PID: 1 Comm: swapper/0 Not tainted 3.17.0-rc6-wl-ath-00314-g3ec2e1e #1 >> [ 6.787755] Hardware name: Intel Corporation 2012 Client Platform/LosLunas CRB, BIOS ACRVMBY1.86C.0054.B00.1107311147 07/31/2011 >> [ 6.788670] 0000000000000009 ffff880437e0bb00 ffffffff818571f9 ffff880437e0bb48 >> [ 6.789551] ffff880437e0bb38 ffffffff8106ef1d ffffc900018d0000 0000000000006000 >> [ 6.790349] ffffc900018d0000 ffffc900018d0000 00000000fed10000 ffff880437e0bb98 >> [ 6.791228] Call Trace: >> [ 6.791552] [<ffffffff818571f9>] dump_stack+0x4d/0x66 >> [ 6.791961] [<ffffffff8106ef1d>] warn_slowpath_common+0x7d/0xa0 >> [ 6.792413] [<ffffffff8106ef8c>] warn_slowpath_fmt+0x4c/0x50 >> [ 6.792939] [<ffffffff8107544f>] ? iomem_map_sanity_check+0xcf/0xe0 >> [ 6.793425] [<ffffffff8105b82c>] __ioremap_caller+0x24c/0x2d0 >> [ 6.793955] [<ffffffff8105b8c7>] ioremap_nocache+0x17/0x20 >> [ 6.794394] [<ffffffff8103504d>] snb_uncore_imc_init_box+0x6d/0x90 >> [ 6.794951] [<ffffffff8103341c>] uncore_pci_probe+0xcc/0x1f0 >> [ 6.795388] [<ffffffff8142e8b5>] local_pci_probe+0x45/0xa0 >> [ 6.795902] [<ffffffff8142fba5>] ? pci_match_device+0xe5/0x110 >> [ 6.796352] [<ffffffff8142fce1>] pci_device_probe+0xd1/0x120 >> [ 6.796864] [<ffffffff815024c0>] driver_probe_device+0x90/0x3e0 >> [ 6.797327] [<ffffffff815028db>] __driver_attach+0x8b/0x90 >> [ 6.797839] [<ffffffff81502850>] ? __device_attach+0x40/0x40 >> [ 6.798287] [<ffffffff8150038b>] bus_for_each_dev+0x6b/0xb0 >> [ 6.798796] [<ffffffff81501f6e>] driver_attach+0x1e/0x20 >> [ 6.799222] [<ffffffff81501b60>] bus_add_driver+0x180/0x250 >> [ 6.799730] [<ffffffff81df6e52>] ? uncore_cpu_setup+0x13/0x13 >> [ 6.800184] [<ffffffff815030a4>] driver_register+0x64/0xf0 >> [ 6.800698] [<ffffffff8142e14c>] __pci_register_driver+0x4c/0x50 >> [ 6.801161] [<ffffffff81df6f19>] intel_uncore_init+0xc7/0x2ae >> [ 6.801691] [<ffffffff81df6e52>] ? uncore_cpu_setup+0x13/0x13 >> [ 6.802142] [<ffffffff81002130>] do_one_initcall+0xc0/0x1f0 >> [ 6.802650] [<ffffffff8108d900>] ? parse_args+0x1c0/0x4e0 >> [ 6.803075] [<ffffffff81dea11b>] kernel_init_freeable+0x1b3/0x23b >> [ 6.803628] [<ffffffff8184a930>] ? rest_init+0x90/0x90 >> [ 6.804034] [<ffffffff8184a93e>] kernel_init+0xe/0xf0 >> [ 6.804433] [<ffffffff8185fe3c>] ret_from_fork+0x7c/0xb0 >> [ 6.804928] [<ffffffff8184a930>] ? rest_init+0x90/0x90 >> [ 6.805336] ---[ end trace 31a6fa76e4d9f116 ]--- >> [ 6.808747] RAPL PMU detected, hw unit 2^-16 Joules, API unit is 2^-32 Joules, 3 fixed counters 163840 ms ovfl timer >> >> Thanks, >> Fengguang >> >> _______________________________________________ >> LKP mailing list >> LKP@linux.intel.com >>
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