<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - 5.3.11 regression: No RC6 on Kaby Lake" href="https://bugs.freedesktop.org/show_bug.cgi?id=112315#c20">Comment # 20</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - 5.3.11 regression: No RC6 on Kaby Lake" href="https://bugs.freedesktop.org/show_bug.cgi?id=112315">bug 112315</a> from <a class="email" href="mailto:michael@michaelmarley.com" title="Michael Marley <michael@michaelmarley.com>"> Michael Marley</a> <pre>I tried this on a Skylake system and RC6 does work again. However, on the first boot with it, the screen locked up completely and I got the output below. I rebooted again and I haven't seen the problem again yet. Nov 25 13:58:15 D10a329 kernel: [ 75.501215] BUG: unable to handle page fault for address: 0000000000002330 Nov 25 13:58:15 D10a329 kernel: [ 75.501218] #PF: supervisor write access in kernel mode Nov 25 13:58:15 D10a329 kernel: [ 75.501219] #PF: error_code(0x0002) - not-present page Nov 25 13:58:15 D10a329 kernel: [ 75.501220] PGD 0 P4D 0 Nov 25 13:58:15 D10a329 kernel: [ 75.501223] Oops: 0002 [#1] PREEMPT SMP PTI Nov 25 13:58:15 D10a329 kernel: [ 75.501225] CPU: 1 PID: 972 Comm: Xorg Tainted: G U 5.4.0-050400-lowlatency #201911251228 Nov 25 13:58:15 D10a329 kernel: [ 75.501226] Hardware name: LENOVO 10FLS33C04/30D0, BIOS FWKTA5A 09/19/2019 Nov 25 13:58:15 D10a329 kernel: [ 75.501263] RIP: 0010:gen8_emit_flush_render+0x186/0x1b0 [i915] Nov 25 13:58:15 D10a329 kernel: [ 75.501265] Code: 70 00 00 48 3d 00 f0 ff ff 0f 86 79 ff ff ff e9 28 ff ff ff be 0c 00 00 00 e8 36 70 00 00 48 3d 00 f0 ff ff 0f 87 12 ff ff ff <48> c7 40 08 00 00 00 00 48 83 c0 18 48 c7 40 f8 00 00 00 00 48 c7 Nov 25 13:58:15 D10a329 kernel: [ 75.501266] RSP: 0018:ffffac1d80917a10 EFLAGS: 00010207 Nov 25 13:58:15 D10a329 kernel: [ 75.501268] RAX: 0000000000002328 RBX: 00000000fffff080 RCX: 0000000000003f90 Nov 25 13:58:15 D10a329 kernel: [ 75.501269] RDX: 0000000000002358 RSI: 00000000000000e0 RDI: ffff9915edff9200 Nov 25 13:58:15 D10a329 kernel: [ 75.501270] RBP: ffffac1d80917a20 R08: 0000000000000110 R09: ffff991628db69b0 Nov 25 13:58:15 D10a329 kernel: [ 75.501271] R10: 000000000000a000 R11: ffff991625d95b00 R12: 0000000001144c1c Nov 25 13:58:15 D10a329 kernel: [ 75.501272] R13: ffff9916256e6800 R14: 0000000000000cc0 R15: ffff99162a5c36c0 Nov 25 13:58:15 D10a329 kernel: [ 75.501273] FS: 00007f8db6c86a80(0000) GS:ffff99162ea80000(0000) knlGS:0000000000000000 Nov 25 13:58:15 D10a329 kernel: [ 75.501274] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Nov 25 13:58:15 D10a329 kernel: [ 75.501275] CR2: 0000000000002330 CR3: 000000042608e001 CR4: 00000000003606e0 Nov 25 13:58:15 D10a329 kernel: [ 75.501276] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Nov 25 13:58:15 D10a329 kernel: [ 75.501277] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Nov 25 13:58:15 D10a329 kernel: [ 75.501278] Call Trace: Nov 25 13:58:15 D10a329 kernel: [ 75.501305] execlists_request_alloc+0x4a/0x140 [i915] Nov 25 13:58:15 D10a329 kernel: [ 75.501333] __i915_request_create+0x212/0x270 [i915] Nov 25 13:58:15 D10a329 kernel: [ 75.501360] i915_request_create+0x7b/0xd0 [i915] Nov 25 13:58:15 D10a329 kernel: [ 75.501387] i915_gem_do_execbuffer+0x6d3/0xc80 [i915] Nov 25 13:58:15 D10a329 kernel: [ 75.501411] ? irq_enable.part.0+0x3c/0x40 [i915] Nov 25 13:58:15 D10a329 kernel: [ 75.501415] ? dma_fence_remove_callback+0x49/0x60 Nov 25 13:58:15 D10a329 kernel: [ 75.501441] ? i915_request_wait+0x1d5/0x3d0 [i915] Nov 25 13:58:15 D10a329 kernel: [ 75.501466] ? irq_execute_cb+0x30/0x30 [i915] Nov 25 13:58:15 D10a329 kernel: [ 75.501469] ? __kmalloc_node+0x24b/0x330 Nov 25 13:58:15 D10a329 kernel: [ 75.501493] i915_gem_execbuffer2_ioctl+0x1db/0x3c0 [i915] Nov 25 13:58:15 D10a329 kernel: [ 75.501517] ? i915_gem_busy_ioctl+0x88/0x1e0 [i915] Nov 25 13:58:15 D10a329 kernel: [ 75.501542] ? i915_gem_madvise_ioctl+0x176/0x2b0 [i915] Nov 25 13:58:15 D10a329 kernel: [ 75.501566] ? i915_gem_execbuffer_ioctl+0x2c0/0x2c0 [i915] Nov 25 13:58:15 D10a329 kernel: [ 75.501578] drm_ioctl_kernel+0xae/0xf0 [drm] Nov 25 13:58:15 D10a329 kernel: [ 75.501588] drm_ioctl+0x234/0x3d0 [drm] Nov 25 13:58:15 D10a329 kernel: [ 75.501614] ? i915_gem_execbuffer_ioctl+0x2c0/0x2c0 [i915] Nov 25 13:58:15 D10a329 kernel: [ 75.501617] do_vfs_ioctl+0x405/0x660 Nov 25 13:58:15 D10a329 kernel: [ 75.501620] ? __fget+0x77/0xa0 Nov 25 13:58:15 D10a329 kernel: [ 75.501621] ksys_ioctl+0x67/0x90 Nov 25 13:58:15 D10a329 kernel: [ 75.501623] __x64_sys_ioctl+0x1a/0x20 Nov 25 13:58:15 D10a329 kernel: [ 75.501626] do_syscall_64+0x57/0x190 Nov 25 13:58:15 D10a329 kernel: [ 75.501629] entry_SYSCALL_64_after_hwframe+0x44/0xa9 Nov 25 13:58:15 D10a329 kernel: [ 75.501630] RIP: 0033:0x7f8db6fe467b Nov 25 13:58:15 D10a329 kernel: [ 75.501632] Code: 0f 1e fa 48 8b 05 15 28 0d 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e5 27 0d 00 f7 d8 64 89 01 48 Nov 25 13:58:15 D10a329 kernel: [ 75.501633] RSP: 002b:00007ffd325c02d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 Nov 25 13:58:15 D10a329 kernel: [ 75.501635] RAX: ffffffffffffffda RBX: 00007ffd325c0320 RCX: 00007f8db6fe467b Nov 25 13:58:15 D10a329 kernel: [ 75.501635] RDX: 00007ffd325c0320 RSI: 0000000040406469 RDI: 000000000000000e Nov 25 13:58:15 D10a329 kernel: [ 75.501636] RBP: 0000000040406469 R08: 000055c491fbc790 R09: 0000000000000000 Nov 25 13:58:15 D10a329 kernel: [ 75.501637] R10: 0000000000000000 R11: 0000000000000246 R12: 000055c491f797c0 Nov 25 13:58:15 D10a329 kernel: [ 75.501638] R13: 000000000000000e R14: ffffffffffffffff R15: 00007f8db65cce08 Nov 25 13:58:15 D10a329 kernel: [ 75.501640] Modules linked in: xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype iptable_filter iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 bpfilter br_netfilter bridge stp llc md4 cmac nls_utf8 cifs libarc4 fscache libdes overlay snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio binfmt_misc intel_rapl_msr nls_iso8859_1 intel_rapl_common x86_pkg_temp_thermal intel_powerclamp kvm_intel kvm irqbypass snd_hda_intel snd_intel_nhlt snd_hda_codec snd_usb_audio snd_hda_core snd_usbmidi_lib mc snd_hwdep crct10dif_pclmul snd_pcm crc32_pclmul snd_seq_midi ghash_clmulni_intel snd_seq_midi_event snd_rawmidi mei_hdcp i915 snd_seq aesni_intel drm_kms_helper crypto_simd snd_seq_device cryptd snd_timer glue_helper intel_cstate hid_plantronics input_leds intel_rapl_perf drm snd wmi_bmof joydev i2c_algo_bit intel_wmi_thunderbolt mei_me fb_sys_fops syscopyarea soundcore sysfillrect sysimgblt mei acpi_pad mac_hid nct6683 Nov 25 13:58:15 D10a329 kernel: [ 75.501665] coretemp parport_pc ppdev lp parport iTCO_wdt iTCO_vendor_support ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq libcrc32c hid_generic usbhid hid e1000e i2c_i801 wmi ahci libahci video Nov 25 13:58:15 D10a329 kernel: [ 75.501675] CR2: 0000000000002330 Nov 25 13:58:15 D10a329 kernel: [ 75.501678] ---[ end trace 7ed3c4bcf4278660 ]--- Nov 25 13:58:15 D10a329 kernel: [ 75.501703] RIP: 0010:gen8_emit_flush_render+0x186/0x1b0 [i915] Nov 25 13:58:15 D10a329 kernel: [ 75.501705] Code: 70 00 00 48 3d 00 f0 ff ff 0f 86 79 ff ff ff e9 28 ff ff ff be 0c 00 00 00 e8 36 70 00 00 48 3d 00 f0 ff ff 0f 87 12 ff ff ff <48> c7 40 08 00 00 00 00 48 83 c0 18 48 c7 40 f8 00 00 00 00 48 c7 Nov 25 13:58:15 D10a329 kernel: [ 75.501706] RSP: 0018:ffffac1d80917a10 EFLAGS: 00010207 Nov 25 13:58:15 D10a329 kernel: [ 75.501707] RAX: 0000000000002328 RBX: 00000000fffff080 RCX: 0000000000003f90 Nov 25 13:58:15 D10a329 kernel: [ 75.501708] RDX: 0000000000002358 RSI: 00000000000000e0 RDI: ffff9915edff9200 Nov 25 13:58:15 D10a329 kernel: [ 75.501709] RBP: ffffac1d80917a20 R08: 0000000000000110 R09: ffff991628db69b0 Nov 25 13:58:15 D10a329 kernel: [ 75.501710] R10: 000000000000a000 R11: ffff991625d95b00 R12: 0000000001144c1c Nov 25 13:58:15 D10a329 kernel: [ 75.501711] R13: ffff9916256e6800 R14: 0000000000000cc0 R15: ffff99162a5c36c0 Nov 25 13:58:15 D10a329 kernel: [ 75.501712] FS: 00007f8db6c86a80(0000) GS:ffff99162ea80000(0000) knlGS:0000000000000000 Nov 25 13:58:15 D10a329 kernel: [ 75.501713] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Nov 25 13:58:15 D10a329 kernel: [ 75.501714] CR2: 0000000000002330 CR3: 000000042608e001 CR4: 00000000003606e0 Nov 25 13:58:15 D10a329 kernel: [ 75.501715] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Nov 25 13:58:15 D10a329 kernel: [ 75.501716] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>