[Intel-gfx] [drm/i915] 202c1ca611: WARNING:at_drivers/gpu/drm/i915/intel_uncore.c:#intel_uncore_forcewake_for_reg[i915]
Michal Wajdeczko
michal.wajdeczko at intel.com
Sat Oct 7 09:54:22 UTC 2017
On Sat, 07 Oct 2017 06:25:09 +0200, kernel test robot
<fengguang.wu at intel.com> wrote:
> FYI, we noticed the following commit (built with gcc-6):
>
> commit: 202c1ca611488c621eed76cd63132a2c2838ee5f ("drm/i915: Move core
> GuC functions into dedicated file")
> url:
> https://github.com/0day-ci/linux/commits/Michal-Wajdeczko/drm-i915-Guc-code-reorg/20171002-205241
> base: git://anongit.freedesktop.org/drm-intel for-linux-next
>
> in testcase: aim9
> with following parameters:
>
> testtime: 300s
> test: exec_test
> cpufreq_governor: performance
>
> test-description: Suite IX is the "AIM Independent Resource Benchmark:"
> the famous synthetic benchmark.
> test-url: https://sourceforge.net/projects/aimbench/files/aim-suite9/
>
>
> on test machine: 4 threads Intel(R) Core(TM) i3-3220 CPU @ 3.30GHz with
> 4G memory
>
> caused below changes (please refer to attached dmesg/kmsg for entire
> log/backtrace):
>
>
> +----------------+------------+------------+
> | | 6691933020 | 202c1ca611 |
> +----------------+------------+------------+
> | boot_successes | 3 | 4 |
> +----------------+------------+------------+
>
>
>
> kern :warn : [ 72.000033] WARNING: CPU: 0 PID: 179 at
> drivers/gpu/drm/i915/intel_uncore.c:1839
> intel_uncore_forcewake_for_reg+0x1bb/0x250 [i915]
This was fixed before merging series by moving part of the
initialization new into intel_uc_init_mmio()
See https://patchwork.freedesktop.org/patch/180608/
Thanks,
Michal
> kern :warn : [ 72.000037] Modules linked in: ppdev wmi_bmof
> kvm_intel(+) kvm irqbypass crct10dif_pclmul crc32_pclmul crc32c_intel
> snd_hda_intel i915(+) ahci(+) libahci ghash_clmulni_intel cryptd
> snd_hda_codec drm_kms_helper snd_hda_core syscopyarea sysfillrect
> snd_hwdep sysimgblt fb_sys_fops snd_pcm snd_timer libata snd soundcore
> pcspkr drm parport_pc shpchp wmi parport video ip_tables
> kern :warn : [ 72.000052] CPU: 0 PID: 179 Comm: systemd-udevd Not
> tainted 4.13.0-rc5-01377-g202c1ca #1
> kern :warn : [ 72.000052] Hardware name: Hewlett-Packard HP Pro 3340
> MT/17A1, BIOS 8.07 01/24/2013
> kern :warn : [ 72.000053] task: ffff88011d7a8000 task.stack:
> ffffc90000b28000
> kern :warn : [ 72.000080] RIP:
> 0010:intel_uncore_forcewake_for_reg+0x1bb/0x250 [i915]
> kern :warn : [ 72.000080] RSP: 0018:ffffc90000b2ba78 EFLAGS: 00010296
> kern :warn : [ 72.000081] RAX: 0000000000000032 RBX:
> ffff88011b810000 RCX: 0000000000000000
> kern :warn : [ 72.000082] RDX: 0000000000000001 RSI:
> 0000000000000002 RDI: 0000000000000282
> kern :warn : [ 72.000083] RBP: ffffc90000b2baa0 R08:
> 0000000000000032 R09: ffffffff823555c0
> kern :warn : [ 72.000083] R10: 0000000000000010 R11:
> 0000000000000032 R12: 0000000000000001
> kern :warn : [ 72.000084] R13: 000000000000c180 R14:
> ffff88011b810000 R15: ffffffffa030f5e0
> kern :warn : [ 72.000085] FS: 00007f10e3fe68c0(0000)
> GS:ffff88011fa00000(0000) knlGS:0000000000000000
> kern :warn : [ 72.000086] CS: 0010 DS: 0000 ES: 0000 CR0:
> 0000000080050033
> kern :warn : [ 72.000086] CR2: 00007fe13fa89010 CR3:
> 000000011d7a4000 CR4: 00000000001406f0
> kern :warn : [ 72.000087] Call Trace:
> kern :warn : [ 72.000115] intel_guc_init_early+0x99/0xc0 [i915]
> kern :warn : [ 72.000141] intel_uc_init_early+0x15/0x20 [i915]
> kern :warn : [ 72.000163] i915_driver_load+0x2f2/0xe20 [i915]
> kern :warn : [ 72.000166] ? acpi_dev_found+0x64/0x70
> kern :warn : [ 72.000188] i915_pci_probe+0x4e/0x70 [i915]
> kern :warn : [ 72.000190] local_pci_probe+0x45/0xa0
> kern :warn : [ 72.000191] pci_device_probe+0x132/0x170
> kern :warn : [ 72.000193] driver_probe_device+0x29c/0x450
> kern :warn : [ 72.000194] __driver_attach+0xdf/0xf0
> kern :warn : [ 72.000195] ? driver_probe_device+0x450/0x450
> kern :warn : [ 72.000196] bus_for_each_dev+0x60/0xa0
> kern :warn : [ 72.000197] driver_attach+0x1e/0x20
> kern :warn : [ 72.000198] bus_add_driver+0x170/0x270
> kern :warn : [ 72.000200] driver_register+0x60/0xe0
> kern :warn : [ 72.000201] __pci_register_driver+0x4c/0x50
> kern :warn : [ 72.000225] i915_init+0x57/0x5a [i915]
> kern :warn : [ 72.000226] ? 0xffffffffa0386000
> kern :warn : [ 72.000228] do_one_initcall+0x43/0x170
> kern :warn : [ 72.000229] ? __might_sleep+0x4a/0x80
> kern :warn : [ 72.000231] ? kmem_cache_alloc_trace+0x163/0x1b0
> kern :warn : [ 72.000233] do_init_module+0x5f/0x1fe
> kern :warn : [ 72.000235] load_module+0x1564/0x1c70
> kern :warn : [ 72.000236] ? ima_post_read_file+0x7e/0xa0
> kern :warn : [ 72.000238] ? kernel_read_file+0x1a3/0x1c0
> kern :warn : [ 72.000239] SYSC_finit_module+0xbc/0xf0
> kern :warn : [ 72.000241] ? SYSC_finit_module+0xbc/0xf0
> kern :warn : [ 72.000243] SyS_finit_module+0xe/0x10
> kern :warn : [ 72.000245] entry_SYSCALL_64_fastpath+0x1a/0xa5
> kern :warn : [ 72.000246] RIP: 0033:0x7f10e2e61d49
> kern :warn : [ 72.000246] RSP: 002b:00007ffce4df5b58 EFLAGS:
> 00000246 ORIG_RAX: 0000000000000139
> kern :warn : [ 72.000247] RAX: ffffffffffffffda RBX:
> 0000000000000014 RCX: 00007f10e2e61d49
> kern :warn : [ 72.000248] RDX: 0000000000000000 RSI:
> 00007f10e377d525 RDI: 0000000000000014
> kern :warn : [ 72.000248] RBP: 00007ffce4df4b50 R08:
> 0000000000000000 R09: 00007ffce4df60d0
> kern :warn : [ 72.000249] R10: 0000000000000014 R11:
> 0000000000000246 R12: 0000000000000005
> kern :warn : [ 72.000249] R13: 000000831cfee810 R14:
> 00007ffce4df4b30 R15: 0000000000000005
> kern :warn : [ 72.000250] Code: dc 41 89 c4 8b 83 14 07 00 00 f7 d0
> 44 85 e0 0f 84 92 fe ff ff 48 c7 c6 98 7c 33 a0 48 c7 c7 bd 8b 32 a0 89
> 55 dc e8 56 e8 e3 e0 <0f> ff 8b 55 dc e9 72 fe ff ff a8 60 0f 85 72 ff
> ff ff 45 31 f6
> kern :warn : [ 72.000266] ---[ end trace 53461f15f385117a ]---
>
>
> To reproduce:
>
> git clone https://github.com/intel/lkp-tests.git
> cd lkp-tests
> bin/lkp install job.yaml # job file is attached in this email
> bin/lkp run job.yaml
>
>
>
> Thanks,
> lkp
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