Re: [git pull] drm fixes for 6.13-rc1

[Sasha Levin <sashal@kernel.org>]

On Fri, Nov 29, 2024 at 06:42:18AM +1000, Dave Airlie wrote:
>Hi Linus,
>
>Merge window fixes, mostly amdgpu and xe, with a few other minor ones,
>all looks fairly normal,

Hi folks,

I've also started seeing the following warning after the merge into
linus-next:

[    4.495349] UBSAN: shift-out-of-bounds in ./include/linux/log2.h:57:13
[    4.501876] shift exponent 32 is too large for 32-bit type 'long unsigned int'
[    4.509101] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.12.0 #1
[    4.510096] Hardware name: Google Shuboz/Shuboz, BIOS Google_Shuboz.13434.780.2022_10_13_1418 09/12/2022
[    4.510096] Call Trace:
[    4.510096]  dump_stack_lvl+0x94/0xa4
[    4.510096]  dump_stack+0x12/0x18
[    4.510096]  __ubsan_handle_shift_out_of_bounds+0x156/0x320
[    4.510096]  amdgpu_vm_adjust_size.cold+0x64/0x6c
[    4.510096]  ? __lock_release.isra.0+0x5d/0x170
[    4.510096]  ? amdgpu_device_skip_hw_access.part.0+0x6a/0x70
[    4.510096]  ? gmc_v9_0_init_mem_ranges+0x14c/0x14c
[    4.510096]  gmc_v9_0_sw_init+0x436/0x7c0
[    4.510096]  ? nbio_v7_0_vcn_doorbell_range+0x74/0x74
[    4.510096]  ? gmc_v9_0_init_mem_ranges+0x14c/0x14c
[    4.510096]  amdgpu_device_ip_init+0xd4/0xa74
[    4.510096]  amdgpu_device_init+0xc4a/0x1458
[    4.510096]  amdgpu_driver_load_kms+0x19/0x9c
[    4.510096]  amdgpu_pci_probe+0x153/0x570
[    4.510096]  ? _raw_spin_unlock_irqrestore+0x2f/0x58
[    4.510096]  pci_device_probe+0x8c/0x118
[    4.510096]  ? sysfs_create_link+0x1d/0x38
[    4.510096]  really_probe+0xc2/0x2ac
[    4.510096]  ? _raw_spin_unlock_irq+0x1d/0x38
[    4.510096]  ? pm_runtime_barrier+0x52/0x90
[    4.510096]  __driver_probe_device+0x7a/0x180
[    4.510096]  ? __driver_attach+0x8e/0x188
[    4.510096]  driver_probe_device+0x23/0x108
[    4.510096]  __driver_attach+0x97/0x188
[    4.510096]  ? __device_attach_driver+0x120/0x120
[    4.510096]  bus_for_each_dev+0x71/0xc0
[    4.510096]  driver_attach+0x19/0x20
[    4.510096]  ? __device_attach_driver+0x120/0x120
[    4.510096]  bus_add_driver+0xc9/0x208
[    4.510096]  driver_register+0x52/0x10c
[    4.510096]  ? drm_sched_fence_slab_init+0x80/0x80
[    4.510096]  __pci_register_driver+0x5f/0x68
[    4.510096]  amdgpu_init+0x62/0xb0
[    4.510096]  do_one_initcall+0x63/0x2a8
[    4.510096]  ? rdinit_setup+0x40/0x40
[    4.510096]  ? parse_args+0x14b/0x3f4
[    4.510096]  do_initcalls+0xbc/0x148
[    4.510096]  ? rdinit_setup+0x40/0x40
[    4.510096]  kernel_init_freeable+0x15b/0x1fc
[    4.510096]  ? kernel_init+0x18/0x1f4
[    4.510096]  ? rest_init+0x1cc/0x1cc
[    4.510096]  kernel_init+0x18/0x1f4
[    4.510096]  ? schedule_tail+0x50/0x60
[    4.510096]  ret_from_fork+0x38/0x44
[    4.510096]  ? rest_init+0x1cc/0x1cc
[    4.510096]  ret_from_fork_asm+0x12/0x18
[    4.510096]  entry_INT80_32+0x108/0x108

-- 
Thanks,
Sasha