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<base href="https://bugs.freedesktop.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - WARNING: CPU: 3 PID: 233 at drivers/gpu/drm/i915/intel_display.c:690 chv_calc_dpll_params+0x97/0xb0 [i915]"
href="https://bugs.freedesktop.org/show_bug.cgi?id=97296">97296</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>WARNING: CPU: 3 PID: 233 at drivers/gpu/drm/i915/intel_display.c:690 chv_calc_dpll_params+0x97/0xb0 [i915]
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>major
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>jonowoodward1986@gmail.com
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>Description: WARNING: CPU: 3 PID: 233 at
drivers/gpu/drm/i915/intel_display.c:690 chv_calc_dpll_params+0x97/0xb0 [i915]
Product: PiPo X9S
Processor: Intel(R) Atom(TM) x5-Z8300 CPU @ 1.44GHz
Linux: 4.6.4-1-ARCH #1 SMP PREEMPT Mon Jul 11 19:12:32 CEST 2016 x86_64
GNU/Linux
Intel i915 fault:
[ 3.172649] ------------[ cut here ]------------
[ 3.172773] WARNING: CPU: 3 PID: 233 at
drivers/gpu/drm/i915/intel_display.c:690 chv_calc_dpll_params+0x97/0xb0 [i915]
[ 3.172778] WARN_ON(clock->n == 0 || clock->p == 0)
[ 3.172781] Modules linked in:
[ 3.172785] fdp_i2c pcspkr fdp kxcjk_1013 nci industrialio_triggered_buffer
kfifo_buf nfc goodix snd_soc_rt5645 industrialio battery snd_soc_rt5640 snd_so
c_rl6231 nls_iso8859_1 nls_cp437 vfat fat i915(+) drm_kms_helper drm dm9601
cdc_ether usbnet mii intel_gtt syscopyarea sysfillrect sysimgblt fb_sys_fops
mei_t
xe i2c_algo_bit lpc_ich mei processor_thermal_device intel_soc_dts_iosf thermal
snd_intel_sst_acpi snd_intel_sst_core snd_soc_sst_mfld_platform snd_soc_sst_ma
tch hci_uart snd_soc_core btbcm btqca btintel snd_compress snd_pcm_dmaengine
bluetooth ac97_bus video fjes snd_pcm intel_hid sparse_keymap rfkill_gpio
snd_tim
er rfkill snd i2c_designware_platform soundcore i2c_designware_core tpm_crb
8250_dw int3403_thermal int3400_thermal int340x_thermal_zone acpi_thermal_rel
spi_
pxa2xx_platform tpm_tis
[ 3.172870] tpm pinctrl_cherryview acpi_pad ac processor button sch_fq_codel
ip_tables x_tables ext4 crc16 jbd2 mbcache mmc_block crc32c_intel xhci_pci xh
ci_hcd usbcore usb_common sdhci_acpi sdhci led_class mmc_core dm_mod
[ 3.172904] CPU: 3 PID: 233 Comm: systemd-udevd Tainted: G W 4.6.4-1-ARCH #1
[ 3.172908] Hardware name: Default string Default string/Cherry Trail CR, BIOS
5.11 04/22/2016
[ 3.172912] 0000000000000286 0000000007c25e5f ffff88007851f5d0 ffffffff812e54c2
[ 3.172919] ffff88007851f620 0000000000000000 ffff88007851f610 ffffffff8107a6bb
[ 3.172924] 000002b27851f5f0 ffff88017911e800 ffff88017a380000 0000000000000000
[ 3.172930] Call Trace:
[ 3.172946] [<ffffffff812e54c2>] dump_stack+0x63/0x81
[ 3.172953] [<ffffffff8107a6bb>] __warn+0xcb/0xf0
[ 3.172958] [<ffffffff8107a73f>] warn_slowpath_fmt+0x5f/0x80
[ 3.173037] [<ffffffffa0568627>] chv_calc_dpll_params+0x97/0xb0 [i915]
[ 3.173103] [<ffffffffa0568db7>] i9xx_get_pipe_config+0x587/0x660 [i915]
[ 3.173126] [<ffffffffa04350c9>] ? drm_mode_object_get_reg+0x69/0x80 [drm]
[ 3.173191] [<ffffffffa0575ff5>] intel_modeset_setup_hw_state+0xa5/0xf50 [i915]
[ 3.173204] [<ffffffffa0446e94>] ? drm_modeset_lock_all_ctx+0xa4/0xb0 [drm]
[ 3.173269] [<ffffffffa0578d7d>] intel_modeset_init+0xc0d/0x1cb0 [i915]
[ 3.173334] [<ffffffffa05a7646>] ? intel_i2c_reset+0x46/0x50 [i915]
[ 3.173398] [<ffffffffa05a78f4>] ? intel_setup_gmbus+0x234/0x310 [i915]
[ 3.173463] [<ffffffffa05b340b>] i915_driver_load+0xe2b/0x1760 [i915]
[ 3.173469] [<ffffffff810bce54>] ? __wake_up+0x44/0x50
[ 3.173477] [<ffffffff814eebc9>] ? netlink_broadcast_filtered+0x139/0x3c0
[ 3.173482] [<ffffffff812e8aa0>] ? kobj_ns_drop+0x50/0x50
[ 3.173487] [<ffffffff812e8da7>] ? kobject_uevent_env+0x167/0x4f0
[ 3.173493] [<ffffffff8140d377>] ? get_device+0x17/0x20
[ 3.173498] [<ffffffff814137e5>] ? klist_class_dev_get+0x15/0x20
[ 3.173505] [<ffffffff815b8d97>] ? klist_node_init+0x37/0x50
[ 3.173511] [<ffffffff8140efa2>] ? device_add+0x232/0x670
[ 3.173525] [<ffffffffa0430847>] drm_dev_register+0xa7/0xb0 [drm]
[ 3.173541] [<ffffffffa0432c02>] drm_get_pci_dev+0xd2/0x1e0 [drm]
[ 3.173598] [<ffffffffa04f0316>] i915_pci_probe+0x66/0x90 [i915]
[ 3.173605] [<ffffffff8132e245>] local_pci_probe+0x45/0xa0
[ 3.173610] [<ffffffff8132e190>] ? pci_match_device+0xe0/0x110
[ 3.173614] [<ffffffff8132f449>] pci_device_probe+0x109/0x160
[ 3.173620] [<ffffffff8141280c>] driver_probe_device+0x22c/0x440
[ 3.173625] [<ffffffff81412af1>] __driver_attach+0xd1/0xf0
[ 3.173630] [<ffffffff81412a20>] ? driver_probe_device+0x440/0x440
[ 3.173635] [<ffffffff8141029c>] bus_for_each_dev+0x6c/0xc0
[ 3.173640] [<ffffffff81411efe>] driver_attach+0x1e/0x20
[ 3.173645] [<ffffffff81411943>] bus_add_driver+0x1c3/0x280
[ 3.173650] [<ffffffff81413500>] driver_register+0x60/0xe0
[ 3.173654] [<ffffffff8132da2c>] __pci_register_driver+0x4c/0x50
[ 3.173669] [<ffffffffa0432df0>] drm_pci_init+0xe0/0x110 [drm]
[ 3.173673] [<ffffffffa0617000>] ? 0xffffffffa0617000
[ 3.173728] [<ffffffffa0617093>] i915_init+0x93/0x9a [i915]
[ 3.173735] [<ffffffff81002123>] do_one_initcall+0xb3/0x1f0
[ 3.173741] [<ffffffff8116dc47>] do_init_module+0x5f/0x1d8
[ 3.173748] [<ffffffff81103e26>] load_module+0x2186/0x29b0
[ 3.173753] [<ffffffff81100f20>] ? symbol_put_addr+0x50/0x50
[ 3.173759] [<ffffffff811047a3>] SyS_init_module+0x153/0x1a0
[ 3.173768] [<ffffffff815c7232>] entry_SYSCALL_64_fastpath+0x1a/0xa4
[ 3.173773] ---[ end trace 0bc11f839e8dfb26 ]---
# cat /sys/class/drm/card0/error
no error state collected</pre>
</div>
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