[Bug 110883] [Regression linux 5.2-rc4][bisected] hang on boot

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Jun 10 13:02:35 UTC 2019 

https://bugs.freedesktop.org/show_bug.cgi?id=110883

            Bug ID: 110883
           Summary: [Regression linux 5.2-rc4][bisected] hang on boot
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: freedesktop at sibrenvasse.nl

Created attachment 144491
  --> https://bugs.freedesktop.org/attachment.cgi?id=144491&action=edit
bisect log

Laptop Hardware:
Model: HP EliteBook 8570w
GPU: Chelsea XT GL [FirePro M4000]

relevant kernel command line:
amdgpu.si_support=1 amdgpu.dc=1 radeon.si_support=0

After upgrading from 5.2-rc3 to 5.2-rc4 laptop hangs during boot. (Xorg does
not start and I'm unable to switch to a TTY)

---
Jun 10 12:36:32 hostname kernel: amdgpu 0000:01:00.0: amdgpu_device_ip_init
failed
Jun 10 12:36:32 hostname kernel: amdgpu 0000:01:00.0: Fatal error during GPU
init
Jun 10 12:36:32 hostname kernel: [drm] amdgpu: finishing device.
Jun 10 12:36:32 hostname kernel: [drm] amdgpu atom LVDS backlight unloaded
Jun 10 12:36:32 hostname kernel: ------------[ cut here ]------------
Jun 10 12:36:32 hostname kernel: Memory manager not clean during takedown.
Jun 10 12:36:32 hostname kernel: WARNING: CPU: 1 PID: 226 at
drivers/gpu/drm/drm_mm.c:939 drm_mm_takedown+0x1f/0x30 [drm]
Jun 10 12:36:32 hostname kernel: Modules linked in: amdgpu(+) amd_iommu_v2
gpu_sched i2c_algo_bit ttm drm_kms_helper syscopyarea sysfillrect sysimgblt
fb_sys_fops drm agpgart
Jun 10 12:36:32 hostname kernel: CPU: 1 PID: 226 Comm: modprobe Not tainted
5.2.0-rc4-mainline #6
Jun 10 12:36:32 hostname kernel: Hardware name: Hewlett-Packard HP EliteBook
8570w/176B, BIOS 68IAV Ver. F.70 07/30/2018
Jun 10 12:36:32 hostname kernel: RIP: 0010:drm_mm_takedown+0x1f/0x30 [drm]
Jun 10 12:36:32 hostname kernel: Code: c4 ce d1 0f 1f 84 00 00 00 00 00 0f 1f
44 00 00 48 8b 47 38 48 83 c7 38 48 39 c7 75 01 c3 48 c7 c7 48 ad 1d c0 e8 9b
c7 ce d1 <0f> 0b c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 0f 1f 44 00 00
Jun 10 12:36:32 hostname kernel: RSP: 0018:ffffb846c1cc7990 EFLAGS: 00010286
Jun 10 12:36:32 hostname kernel: RAX: 0000000000000000 RBX: ffff92bb29eb4060
RCX: 0000000000000000
Jun 10 12:36:32 hostname kernel: RDX: 0000000000000000 RSI: 0000000000000082
RDI: 00000000ffffffff
Jun 10 12:36:32 hostname kernel: RBP: ffff92bb29eb41f0 R08: 00000000000002ae
R09: 0000000000000001
Jun 10 12:36:32 hostname kernel: R10: 0000000000000000 R11: 0000000000000001
R12: ffff92bb2b104f00
Jun 10 12:36:32 hostname kernel: R13: ffff92bb2b104fe8 R14: 0000000000000170
R15: ffff92bb29ce1020
Jun 10 12:36:32 hostname kernel: FS:  00007f6a1ec00740(0000)
GS:ffff92bb2da40000(0000) knlGS:0000000000000000
Jun 10 12:36:32 hostname kernel: CS:  0010 DS: 0000 ES: 0000 CR0:
0000000080050033
Jun 10 12:36:32 hostname kernel: CR2: 00007ffe870f1fc0 CR3: 0000000429ec6003
CR4: 00000000001606e0
Jun 10 12:36:32 hostname kernel: Call Trace:
Jun 10 12:36:32 hostname kernel:  amdgpu_vram_mgr_fini+0x2d/0xa0 [amdgpu]
Jun 10 12:36:32 hostname kernel:  ttm_bo_clean_mm+0xa9/0xb0 [ttm]
Jun 10 12:36:32 hostname kernel:  amdgpu_ttm_fini+0x71/0xd0 [amdgpu]
Jun 10 12:36:32 hostname kernel:  amdgpu_bo_fini+0xe/0x30 [amdgpu]
Jun 10 12:36:32 hostname kernel:  gmc_v6_0_sw_fini+0x26/0x50 [amdgpu]
Jun 10 12:36:32 hostname kernel:  amdgpu_device_fini+0x257/0x43d [amdgpu]
Jun 10 12:36:32 hostname kernel:  amdgpu_driver_unload_kms+0xb2/0x150 [amdgpu]
Jun 10 12:36:32 hostname kernel:  amdgpu_driver_load_kms.cold.2+0x5a/0xc4
[amdgpu]
Jun 10 12:36:32 hostname kernel:  drm_dev_register+0x10d/0x150 [drm]
Jun 10 12:36:32 hostname kernel:  amdgpu_pci_probe+0xcb/0x130 [amdgpu]
Jun 10 12:36:32 hostname kernel:  ? _raw_spin_unlock_irqrestore+0x20/0x40
Jun 10 12:36:32 hostname kernel:  local_pci_probe+0x42/0x80
Jun 10 12:36:32 hostname kernel:  ? pci_match_device+0xc5/0x100
Jun 10 12:36:32 hostname kernel:  pci_device_probe+0x112/0x190
Jun 10 12:36:32 hostname kernel:  really_probe+0xef/0x390
Jun 10 12:36:32 hostname kernel:  driver_probe_device+0xb4/0x100
Jun 10 12:36:32 hostname kernel:  device_driver_attach+0x4f/0x60
Jun 10 12:36:32 hostname kernel:  __driver_attach+0x86/0x140
Jun 10 12:36:32 hostname kernel:  ? device_driver_attach+0x60/0x60
Jun 10 12:36:32 hostname kernel:  ? device_driver_attach+0x60/0x60
Jun 10 12:36:32 hostname kernel:  bus_for_each_dev+0x77/0xc0
Jun 10 12:36:32 hostname kernel:  bus_add_driver+0x14a/0x1e0
Jun 10 12:36:32 hostname kernel:  ? 0xffffffffc0694000
Jun 10 12:36:32 hostname kernel:  driver_register+0x6b/0xb0
Jun 10 12:36:32 hostname kernel:  ? 0xffffffffc0694000
Jun 10 12:36:32 hostname kernel:  do_one_initcall+0x46/0x224
Jun 10 12:36:32 hostname kernel:  ? kmem_cache_alloc_trace+0x33/0x1c0
Jun 10 12:36:32 hostname kernel:  ? do_init_module+0x22/0x220
Jun 10 12:36:32 hostname kernel:  do_init_module+0x5a/0x220
Jun 10 12:36:32 hostname kernel:  load_module+0x2049/0x2300
Jun 10 12:36:32 hostname kernel:  ? vfs_read+0x116/0x140
Jun 10 12:36:32 hostname kernel:  ? __se_sys_finit_module+0x97/0xf0
Jun 10 12:36:32 hostname kernel:  __se_sys_finit_module+0x97/0xf0
Jun 10 12:36:32 hostname kernel:  do_syscall_64+0x5b/0x1a0
Jun 10 12:36:32 hostname kernel:  entry_SYSCALL_64_after_hwframe+0x44/0xa9
Jun 10 12:36:32 hostname kernel: RIP: 0033:0x7f6a1ed2097d
Jun 10 12:36:32 hostname kernel: Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 90
f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24
08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d b3 94 0c 00 f7 d8 64 89 01 48
Jun 10 12:36:32 hostname kernel: RSP: 002b:00007ffc58e63b78 EFLAGS: 00000246
ORIG_RAX: 0000000000000139
Jun 10 12:36:32 hostname kernel: RAX: ffffffffffffffda RBX: 000056130b231da0
RCX: 00007f6a1ed2097d
Jun 10 12:36:32 hostname kernel: RDX: 0000000000000000 RSI: 000056130b234250
RDI: 000000000000000e
Jun 10 12:36:32 hostname kernel: RBP: 000056130b234250 R08: 0000000000000000
R09: 0000000000000000
Jun 10 12:36:32 hostname kernel: R10: 000000000000000e R11: 0000000000000246
R12: 0000000000000000
Jun 10 12:36:32 hostname kernel: R13: 000056130b231c60 R14: 0000000000060000
R15: 000056130b231da0
Jun 10 12:36:32 hostname kernel: ---[ end trace eaa2ccb642b1fac6 ]---
Jun 10 12:36:32 hostname kernel: [TTM] Finalizing pool allocator
Jun 10 12:36:32 hostname kernel: [TTM] Finalizing DMA pool allocator
Jun 10 12:36:32 hostname kernel: [TTM] Zone  kernel: Used memory at exit: 50
KiB
Jun 10 12:36:32 hostname kernel: [TTM] Zone   dma32: Used memory at exit: 0 KiB
Jun 10 12:36:32 hostname kernel: [drm] amdgpu: ttm finalized
Jun 10 12:36:32 hostname kernel: amdgpu: probe of 0000:01:00.0 failed with
error -22
----

I've bisected the issue between tags v5.2-rc3 and v5.2-rc4.
1929059893022a3bbed43934c7313e66aad7346b is the first bad commit. The issue is
not present on v5.2-rc4 with this commit reverted. Bisect log attached.

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