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<base href="https://bugs.freedesktop.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Null PTR deref on amd-staging-drm-next since rebase for rc3"
href="https://bugs.freedesktop.org/show_bug.cgi?id=108912">108912</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Null PTR deref on amd-staging-drm-next since rebase for rc3
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>XOrg git
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/AMDgpu
</td>
</tr>
<tr>
<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>samantham@posteo.net
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=142663" name="attach_142663" title="dmesg log">attachment 142663</a> <a href="attachment.cgi?id=142663&action=edit" title="dmesg log">[details]</a></span>
dmesg log
Since the rebase for rc3 I get a null ptr deref message and the system locks up
as soon as KDE starts (after the login screen). This is on commit
2d73921a175ea8430718384ed3891f1710fed2df
nov 29 20:06:37 kernel: BUG: unable to handle kernel NULL pointer dereference
at 0000000000000008
nov 29 20:06:37 kernel: PGD 0 P4D 0
nov 29 20:06:37 kernel: Oops: 0000 [#1] PREEMPT SMP NOPTI
nov 29 20:06:37 kernel: CPU: 0 PID: 2291 Comm: X Tainted: G E
4.20.0-rc3amd-staging-drm-next+ #12
nov 29 20:06:37 kernel: Hardware name: LENOVO 20MUCTO1WW/20MUCTO1WW, BIOS
R0WET43W (1.11 ) 11/15/2018
nov 29 20:06:37 kernel: RIP: 0010:amdgpu_dm_atomic_commit_tail+0x339/0xdc0
[amdgpu]
nov 29 20:06:37 kernel: Code: b4 24 90 02 00 00 4d 89 f0 4c 89 e1 89 b2 74 02
00 00 48 8d 70 10 0f b6 50 08 48 8b 44 24 08 48 8b b8 20 b3 00 00 48 8b 04 24
<4c> 8b 48 08 e8 9e f8 ff ff 84 c0 0f 84 3b 08 00 00 41 83 c5 01 45
nov 29 20:06:37 kernel: RSP: 0018:ffffaaf64969bb70 EFLAGS: 00010202
nov 29 20:06:37 kernel: RAX: 0000000000000000 RBX: 0000000000000001 RCX:
ffff9957f2506400
nov 29 20:06:37 kernel: RDX: 0000000000000001 RSI: ffff995580164040 RDI:
ffff9957f2e12800
nov 29 20:06:37 kernel: RBP: ffff9957f34f5800 R08: ffff99557f848400 R09:
0000000000000438
nov 29 20:06:37 kernel: R10: ffff995579179c00 R11: 0000000000000780 R12:
ffff9957f2506400
nov 29 20:06:37 kernel: R13: 0000000000000000 R14: ffff99557f848400 R15:
ffff99557a144d80
nov 29 20:06:37 kernel: FS: 00007f0a435a9a80(0000) GS:ffff9957fbc00000(0000)
knlGS:0000000000000000
nov 29 20:06:37 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
nov 29 20:06:37 kernel: CR2: 0000000000000008 CR3: 0000000537876000 CR4:
00000000003406f0
nov 29 20:06:37 kernel: Call Trace:
nov 29 20:06:37 kernel: ? kmem_cache_alloc_trace+0x1d2/0x580
nov 29 20:06:37 kernel: ? _raw_spin_unlock_irq+0x22/0x40
nov 29 20:06:37 kernel: ? wait_for_completion_timeout+0xf7/0x110
nov 29 20:06:37 kernel: ? _raw_spin_unlock_irq+0x22/0x40
nov 29 20:06:37 kernel: ? wait_for_completion_interruptible+0xd4/0x140
nov 29 20:06:37 kernel: commit_tail+0x3d/0x70 [drm_kms_helper]
nov 29 20:06:37 kernel: drm_atomic_helper_commit+0x103/0x110 [drm_kms_helper]
nov 29 20:06:37 kernel: drm_mode_obj_set_property_ioctl+0x122/0x280 [drm]
nov 29 20:06:37 kernel: ? drm_connector_set_obj_prop+0x80/0x80 [drm]
nov 29 20:06:37 kernel: drm_connector_property_set_ioctl+0x29/0x30 [drm]
nov 29 20:06:37 kernel: drm_ioctl_kernel+0x85/0xd0 [drm]
nov 29 20:06:37 kernel: drm_ioctl+0x1d6/0x360 [drm]
nov 29 20:06:37 kernel: ? drm_connector_set_obj_prop+0x80/0x80 [drm]
nov 29 20:06:37 kernel: ? ep_send_events_proc+0x6b/0x170
nov 29 20:06:37 kernel: ? preempt_count_sub+0x43/0x50
nov 29 20:06:37 kernel: amdgpu_drm_ioctl+0x49/0x80 [amdgpu]
nov 29 20:06:37 kernel: do_vfs_ioctl+0x90/0x5f0
nov 29 20:06:37 kernel: ? __fget+0x6e/0xa0
nov 29 20:06:37 kernel: ksys_ioctl+0x60/0x90
nov 29 20:06:37 kernel: __x64_sys_ioctl+0x16/0x20
nov 29 20:06:37 kernel: do_syscall_64+0x60/0x110
nov 29 20:06:37 kernel: entry_SYSCALL_64_after_hwframe+0x49/0xbe
nov 29 20:06:37 kernel: RIP: 0033:0x7f0a4466baa7
nov 29 20:06:37 kernel: Code: 00 00 90 48 8b 05 f1 83 2c 00 64 c7 00 26 00 00
00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05
<48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d c1 83 2c 00 f7 d8 64 89 01 48
nov 29 20:06:37 kernel: RSP: 002b:00007ffd3eae39f8 EFLAGS: 00003246 ORIG_RAX:
0000000000000010
nov 29 20:06:37 kernel: RAX: ffffffffffffffda RBX: 00005629892b2690 RCX:
00007f0a4466baa7
nov 29 20:06:37 kernel: RDX: 00007ffd3eae3a30 RSI: 00000000c01064ab RDI:
000000000000000d
nov 29 20:06:37 kernel: RBP: 00007ffd3eae3a30 R08: 00005629892f8ab0 R09:
0000000000000001
nov 29 20:06:37 kernel: R10: 00000000005732d8 R11: 0000000000003246 R12:
00000000c01064ab
nov 29 20:06:37 kernel: R13: 000000000000000d R14: 00007f0a45e85c20 R15:
0000000000000007
nov 29 20:06:37 kernel: Modules linked in: cmac(E) fuse(E) rfcomm(E) ccm(E)
af_packet(E) xt_tcpudp(E) ip6t_rpfilter(E) ip6t_REJECT(E) nf_reject_ipv6(E)
ipt_REJECT(E) nf_reject_ipv4(E) xt_conntrack(E) ebtable_nat(E) ip6table_nat(E)
nf_nat_ipv6(E) ip6table_mangle(E) ip6table_raw(E) ip6table_security(E)
iptable_nat(E) nf_nat_ipv4(E) nf_nat(E) iptable_mangle(E) iptable_raw(E)
iptable_security(E) nf_conntrack(E) nf_defrag_ipv6(E) nf_defrag_ipv4(E)
ip_set(E) nfnetlink(E) ebtable_filter(E) ebtables(E) ip6table_filter(E)
ip6_tables(E) iptable_filter(E) ip_tables(E) x_tables(E) bpfilter(E) bnep(E)
xfs(E) btusb(E) uvcvideo(E) btrtl(E) videobuf2_vmalloc(E) btbcm(E) btintel(E)
videobuf2_memops(E) videobuf2_v4l2(E) bluetooth(E) videodev(E)
videobuf2_common(E) ecdh_generic(E) nls_iso8859_1(E) nls_cp437(E) vfat(E)
fat(E) msr(E) arc4(E) snd_hda_codec_realtek(E) snd_hda_codec_generic(E)
snd_hda_codec_hdmi(E) edac_mce_amd(E) iwlmvm(E) snd_hda_intel(E) kvm_amd(E)
ccp(E) snd_hda_codec(E) kvm(E) mac80211(E)
nov 29 20:06:37 kernel: snd_hda_core(E) irqbypass(E) snd_hwdep(E) joydev(E)
snd_pcm(E) wmi_bmof(E) sp5100_tco(E) thinkpad_acpi(E) snd_timer(E) k10temp(E)
i2c_piix4(E) snd(E) iwlwifi(E) rtsx_pci_ms(E) soundcore(E) battery(E) ac(E)
r8169(E) ipmi_devintf(E) memstick(E) ipmi_msghandler(E) cfg80211(E)
ucsi_acpi(E) libphy(E) typec_ucsi(E) typec(E) i2c_scmi(E) rfkill(E) button(E)
pcc_cpufreq(E) acpi_cpufreq(E) btrfs(E) libcrc32c(E) xor(E) raid6_pq(E)
dm_crypt(E) algif_skcipher(E) af_alg(E) hid_multitouch(E) hid_generic(E)
usbhid(E) uas(E) usb_storage(E) crct10dif_pclmul(E) crc32_pclmul(E)
crc32c_intel(E) ghash_clmulni_intel(E) rtsx_pci_sdmmc(E) mmc_core(E)
aesni_intel(E) aes_x86_64(E) crypto_simd(E) cryptd(E) glue_helper(E) amdgpu(E)
chash(E) amd_iommu_v2(E) gpu_sched(E) i2c_algo_bit(E) ttm(E) ehci_pci(E)
drm_kms_helper(E) syscopyarea(E) sysfillrect(E) xhci_pci(E) sysimgblt(E)
fb_sys_fops(E) serio_raw(E) xhci_hcd(E) ehci_hcd(E) drm(E) usbcore(E)
rtsx_pci(E) wmi(E) video(E) sg(E) dm_multipath(E) dm_mod(E)
nov 29 20:06:37 kernel: scsi_dh_rdac(E) scsi_dh_emc(E) scsi_dh_alua(E)
efivarfs(E)
nov 29 20:06:37 kernel: CR2: 0000000000000008
nov 29 20:06:37 kernel: ---[ end trace 6d210eaeb18f974a ]---
nov 29 20:06:37 kernel: RIP: 0010:amdgpu_dm_atomic_commit_tail+0x339/0xdc0
[amdgpu]
nov 29 20:06:37 kernel: Code: b4 24 90 02 00 00 4d 89 f0 4c 89 e1 89 b2 74 02
00 00 48 8d 70 10 0f b6 50 08 48 8b 44 24 08 48 8b b8 20 b3 00 00 48 8b 04 24
<4c> 8b 48 08 e8 9e f8 ff ff 84 c0 0f 84 3b 08 00 00 41 83 c5 01 45
nov 29 20:06:37 kernel: RSP: 0018:ffffaaf64969bb70 EFLAGS: 00010202
nov 29 20:06:37 kernel: RAX: 0000000000000000 RBX: 0000000000000001 RCX:
ffff9957f2506400
nov 29 20:06:37 kernel: RDX: 0000000000000001 RSI: ffff995580164040 RDI:
ffff9957f2e12800
nov 29 20:06:37 kernel: RBP: ffff9957f34f5800 R08: ffff99557f848400 R09:
0000000000000438
nov 29 20:06:37 kernel: R10: ffff995579179c00 R11: 0000000000000780 R12:
ffff9957f2506400
nov 29 20:06:37 kernel: R13: 0000000000000000 R14: ffff99557f848400 R15:
ffff99557a144d80
nov 29 20:06:37 kernel: FS: 00007f0a435a9a80(0000) GS:ffff9957fbc00000(0000)
knlGS:0000000000000000
nov 29 20:06:37 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
nov 29 20:06:37 kernel: CR2: 0000000000000008 CR3: 0000000537876000 CR4:
00000000003406f0</pre>
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