i915 splat: RPM raw-wakeref not held, fwtable_read32

Tue Jul 8 15:03:33 UTC 2025

On Tue, Jul 08, 2025 at 04:38:18PM +0200, Jason A. Donenfeld wrote:
> Hi,
> 
> I'm seeing this splat on 6.16-rc5. i7-11850H.

Presumably a regression from commit 8d9908e8fe9c ("drm/i915/display: 
remove small micro-optimizations in irq handling")

I suppose we should just add intel_display_rpm_assert_{block,unblock}()
around that stuff.

Though arguably this GU_MISC irq handling shouldn't even be in the
display code since it's a Gunit interrupt, but I suppose it got moved
because we only enable the GSE interrupt which is only used for
display related stuff.

> 
> Thanks,
> Jason
> 
> [41251.218499] ------------[ cut here ]------------
> [41251.218502] RPM raw-wakeref not held
> [41251.218528] WARNING: CPU: 6 PID: 3718 at drivers/gpu/drm/i915/intel_runtime_pm.h:116 fwtable_read32+0x1c2/0x290 [i915]
> [41251.218620] CPU: 6 UID: 1000 PID: 3718 Comm: chrome Tainted: G S   U              6.16.0-rc5+ #448 PREEMPT
> [41251.218623] Tainted: [S]=CPU_OUT_OF_SPEC, [U]=USER
> [41251.218623] Hardware name: LENOVO 20Y5CTO1WW/20Y5CTO1WW, BIOS N40ET39W (1.21 ) 12/01/2022
> [41251.218624] RIP: 0010:fwtable_read32+0x1c2/0x290 [i915]
> [41251.218651] Code: 4c 89 ff e8 40 d0 ff ff eb 92 80 3d 43 0b 20 00 00 0f 85 87 fe ff ff 48 c7 c7 0f 3c b9 a0 c6 05 2f 0b 20 00 01 e8 be 17 aa e0 <0f> 0b e9 6d fe ff ff 80 3d 1b 0b 20 00 00 0f 85 69 fe ff ff 48 c7
> [41251.218652] RSP: 0000:ffff88815facfe30 EFLAGS: 00010086
> [41251.218653] RAX: 0000000000000018 RBX: 0000000000000000 RCX: 0000000000000027
> [41251.218654] RDX: ffff88901f597848 RSI: 0000000000000001 RDI: ffff88901f597840
> [41251.218654] RBP: 00000000000444f8 R08: 00000000ffffdfff R09: 0000000000000000
> [41251.218655] R10: 0000000000000003 R11: 0000000000000433 R12: 0000000000000000
> [41251.218655] R13: 00000000000000c6 R14: 0000000000000001 R15: ffff8881059fdbe8
> [41251.218656] FS:  00007f74dac2dec0(0000) GS:ffff88909cafa000(0000) knlGS:0000000000000000
> [41251.218657] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [41251.218657] CR2: 00007f74d9a4a52c CR3: 0000000116b45002 CR4: 0000000000772ef0
> [41251.218658] PKRU: 55555554
> [41251.218658] Call Trace:
> [41251.218660]  <TASK>
> [41251.218661]  gen11_gu_misc_irq_ack+0x3a/0x90 [i915]
> [41251.218709]  gen11_irq_handler+0x6d/0xc0 [i915]
> [41251.218733]  __handle_irq_event_percpu+0x3b/0x190
> [41251.218737]  handle_irq_event+0x2f/0x80
> [41251.218739]  handle_edge_irq+0x7d/0x1a0
> [41251.218740]  __common_interrupt+0x34/0x90
> [41251.218743]  common_interrupt+0x3e/0xa0
> [41251.218746]  asm_common_interrupt+0x22/0x40
> [41251.218747] RIP: 0033:0x564713a396c9
> [41251.218748] Code: 89 ed b8 01 00 00 00 66 2e 0f 1f 84 00 00 00 00 00 4c 89 ce 48 c1 ee 2a 49 c1 e9 30 c4 e2 c9 f7 f3 4a 09 74 cc 30 4c 8b 4d 00 <4d> 85 c9 0f 84 d8 00 00 00 4d 89 ef 4d 21 c7 49 89 d4 4c 89 c6 49
> [41251.218749] RSP: 002b:00007fffdf8442b0 EFLAGS: 00000206
> [41251.218750] RAX: 0000000000000004 RBX: 0000000000000001 RCX: 0000275c0b948000
> [41251.218750] RDX: 0000275c00000000 RSI: 0000000000001000 RDI: 0000000000000000
> [41251.218751] RBP: 0000275c0b94a600 R08: fffffffc00000000 R09: 80a6940b00000000
> [41251.218751] R10: 0000000800000000 R11: ffffffffffffffff R12: 0000275c0b94a600
> [41251.218752] R13: 0000275c0b94a600 R14: 0000275800000000 R15: 000000000b94a600
> [41251.218753]  </TASK>
> [41251.218753] ---[ end trace 0000000000000000 ]---
> [41251.218754] ------------[ cut here ]------------
> [41251.218754] RPM wakelock ref not held during HW access
> [41251.218760] WARNING: CPU: 6 PID: 3718 at drivers/gpu/drm/i915/intel_runtime_pm.h:124 fwtable_read32+0x1e9/0x290 [i915]
> [41251.218820] CPU: 6 UID: 1000 PID: 3718 Comm: chrome Tainted: G S   U  W           6.16.0-rc5+ #448 PREEMPT
> [41251.218822] Tainted: [S]=CPU_OUT_OF_SPEC, [U]=USER, [W]=WARN
> [41251.218822] Hardware name: LENOVO 20Y5CTO1WW/20Y5CTO1WW, BIOS N40ET39W (1.21 ) 12/01/2022
> [41251.218823] RIP: 0010:fwtable_read32+0x1e9/0x290 [i915]
> [41251.218847] Code: 17 aa e0 0f 0b e9 6d fe ff ff 80 3d 1b 0b 20 00 00 0f 85 69 fe ff ff 48 c7 c7 28 b4 b4 a0 c6 05 07 0b 20 00 01 e8 97 17 aa e0 <0f> 0b e9 4f fe ff ff 49 8b bf 58 01 00 00 48 85 ff 0f 84 63 fe ff
> [41251.218848] RSP: 0000:ffff88815facfe30 EFLAGS: 00010086
> [41251.218848] RAX: 000000000000002a RBX: 0000000000000000 RCX: 0000000000000027
> [41251.218849] RDX: ffff88901f597848 RSI: 0000000000000001 RDI: ffff88901f597840
> [41251.218849] RBP: 00000000000444f8 R08: 00000000ffffdfff R09: 0000000000000000
> [41251.218850] R10: 0000000000000003 R11: 000000000000045c R12: 0000000000000000
> [41251.218850] R13: 00000000000000c6 R14: 0000000000000001 R15: ffff8881059fdbe8
> [41251.218851] FS:  00007f74dac2dec0(0000) GS:ffff88909cafa000(0000) knlGS:0000000000000000
> [41251.218852] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [41251.218852] CR2: 00007f74d9a4a52c CR3: 0000000116b45002 CR4: 0000000000772ef0
> [41251.218853] PKRU: 55555554
> [41251.218853] Call Trace:
> [41251.218853]  <TASK>
> [41251.218854]  gen11_gu_misc_irq_ack+0x3a/0x90 [i915]
> [41251.218896]  gen11_irq_handler+0x6d/0xc0 [i915]
> [41251.218919]  __handle_irq_event_percpu+0x3b/0x190
> [41251.218920]  handle_irq_event+0x2f/0x80
> [41251.218921]  handle_edge_irq+0x7d/0x1a0
> [41251.218923]  __common_interrupt+0x34/0x90
> [41251.218924]  common_interrupt+0x3e/0xa0
> [41251.218926]  asm_common_interrupt+0x22/0x40
> [41251.218926] RIP: 0033:0x564713a396c9
> [41251.218927] Code: 89 ed b8 01 00 00 00 66 2e 0f 1f 84 00 00 00 00 00 4c 89 ce 48 c1 ee 2a 49 c1 e9 30 c4 e2 c9 f7 f3 4a 09 74 cc 30 4c 8b 4d 00 <4d> 85 c9 0f 84 d8 00 00 00 4d 89 ef 4d 21 c7 49 89 d4 4c 89 c6 49
> [41251.218927] RSP: 002b:00007fffdf8442b0 EFLAGS: 00000206
> [41251.218928] RAX: 0000000000000004 RBX: 0000000000000001 RCX: 0000275c0b948000
> [41251.218928] RDX: 0000275c00000000 RSI: 0000000000001000 RDI: 0000000000000000
> [41251.218929] RBP: 0000275c0b94a600 R08: fffffffc00000000 R09: 80a6940b00000000
> [41251.218929] R10: 0000000800000000 R11: ffffffffffffffff R12: 0000275c0b94a600
> [41251.218930] R13: 0000275c0b94a600 R14: 0000275800000000 R15: 000000000b94a600
> [41251.218931]  </TASK>
> [41251.218931] ---[ end trace 0000000000000000 ]---
> [41680.714071] i915 0000:00:02.0: Using 39-bit DMA addresses

-- 
Ville Syrjälä
Intel