Code execution failed for native in kernel 5.10.17-v7+

[Rumba121]

After changing mmap_sem for mmap_lock to be able to compile for kernel 5.10.17-v7+, the native sample code fails to execute the shader code:

Apr 30 08:11:43 raspberrypi kernel: [ 5455.629995] vcio2: opening vcio 4a6399be, e396df72
Apr 30 08:11:43 raspberrypi kernel: [ 5455.630045] vcio2: device_mmap(e396df72, 226ef3d1{76f39000,76f43000,0,e396df72})
Apr 30 08:11:43 raspberrypi kernel: [ 5455.630062] vcio2: vcioa_alloc_mem(fc56ff3a, a000, 1000, 4)
Apr 30 08:11:43 raspberrypi kernel: [ 5455.630395] vcio2: vcioa_find_handle(fc56ff3a{00000000,0,0}, 27)
Apr 30 08:11:43 raspberrypi kernel: [ 5455.630551] vcio2: vcioa_insert(fc56ff3a{00000000,0,0}, 0)
Apr 30 08:11:43 raspberrypi kernel: [ 5455.630570] vcio2: vcioa_alloc_mem: {27, a000, }
Apr 30 08:11:43 raspberrypi kernel: [ 5455.630790] vcio2: memremap 4a137af0
Apr 30 08:11:43 raspberrypi kernel: [ 5455.630950] vcio2: QpuEnable 1
Apr 30 08:11:43 raspberrypi kernel: [ 5455.631181] vcio2: vcio_set_enabled: 1, 0
Apr 30 08:11:43 raspberrypi kernel: [ 5455.631203] vcio2: IOCTL_EXEC_QPU2 1, 75804028, 1, 1388
Apr 30 08:11:44 raspberrypi kernel: [ 5456.671719] vcio2: vma_close(226ef3d1{76f39000,76f43000,3e3f6,e396df72})
Apr 30 08:11:44 raspberrypi kernel: [ 5456.671748] vcio2: vcioa_find_addr(fc56ff3a{69b204fd,1,10}, 3e3f6000)
Apr 30 08:11:44 raspberrypi kernel: [ 5456.671764] vcio2: vcioa_find_addr {80000027,a000,fe3f6000}
Apr 30 08:11:44 raspberrypi kernel: [ 5456.671782] vcio2: vcioa_unlock_mem(69b204fd{80000027, fe3f6000[a000]}, 757a4a7c)
Apr 30 08:11:44 raspberrypi kernel: [ 5456.671795] vcio2: mapping: ffffffff
Apr 30 08:11:44 raspberrypi kernel: [ 5456.671808] vcio2: mapping: ffffffff
Apr 30 08:11:44 raspberrypi kernel: [ 5456.671820] vcio2: mapping: ffffffff
Apr 30 08:11:46 raspberrypi kernel: [ 5458.750617] cpu cpu0: dev_pm_opp_set_rate: failed to find current OPP for freq 4294967186 (-34)
Apr 30 08:11:47 raspberrypi kernel: [ 5459.790572] vcio2 WARN: Failed to unlock VC memory: s=-110 recv data size=00000004 error00000027
Apr 30 08:11:48 raspberrypi kernel: [ 5460.624613] raspberrypi-firmware soc:firmware: Request 0x00038002 returned status 0x80000001
Apr 30 08:11:48 raspberrypi kernel: [ 5460.624658] raspberrypi-firmware soc:firmware: Request 0x0003000f returned status 0x80000001
Apr 30 08:11:48 raspberrypi kernel: [ 5460.624668] raspberrypi-clk soc:firmware:clocks: Failed to change fw-clk-arm frequency: -22
Apr 30 08:11:48 raspberrypi kernel: [ 5460.624688] vcio2 WARN: Failed to release VC memory: rc=-22 recv data size=00000004 error=80000000
Apr 30 08:11:48 raspberrypi kernel: [ 5460.624799] vcio2: closing vcio 4a6399be, e396df72{as={0}}
Apr 30 08:11:48 raspberrypi kernel: [ 5460.624818] vcio2: vcioa_destroy(fc56ff3a{69b204fd,1,10, 757a4a7c})
Apr 30 08:11:48 raspberrypi kernel: [ 5460.624833] vcio2: vcioa_unlock_mem(69b204fd{80000027, fe3f6000[a000]}, 757a4a7c)
Apr 30 08:11:48 raspberrypi kernel: [ 5460.624844] vcio2: mapping: ffffffff
Apr 30 08:11:48 raspberrypi kernel: [ 5460.624857] vcio2: mapping: ffffffff
Apr 30 08:11:48 raspberrypi kernel: [ 5460.624869] vcio2: mapping: ffffffff
Apr 30 08:11:48 raspberrypi kernel: [ 5460.630855] vcio2: QpuEnable 0
Apr 30 08:11:48 raspberrypi kernel: [ 5460.630976] vcio2: vcio_set_enabled: 0, 0

It works for porting and hybrid. The main diff is the gpu execute io call...

[peyton-howe]

I applied the same change in kernel 5.10.63-v7+, and the native sample code works just fine and no error codes are thrown.

[maazl]

Are you using the vc4 video driver? This is default since Bullseye. And it is undefined behavior. The vc4 driver "owns" the GPU and has no idea of executing user shader code.

[peyton-howe]

I disabled the vc4 video driver and used the legacy driver and it compiled with no issues. I haven't attempted to compile with the vc4 driver enabled, but I would assume it would not work.