Instability with RX 470

[Larry Reaves <larry@xxxxxxxxx>]

I just got a new RX 470 and when playing some games (Team Fortress 2 in particular) the entire system locks up.   I was using the standard arch linux packages, but I have updated everything I can think of and I'm still seeing the instability.  I am using the drm-next branch (git hash g28a3965) of the kernel, mesa from git (hash 1d466b9) and linux-firmware (hash c4c07a8).  When the system locks up, I restart, and and I investigate the logs from the previous boot there is nothing useful at the end.  The only thing amdgpu related is this, which happens repeatedly when I log in via gdm:

Oct 01 00:43:55 larry-swarga kernel: ------------[ cut here ]------------

Oct 01 00:43:55 larry-swarga kernel: WARNING: CPU: 1 PID: 2984 at drivers/gpu/drm/drm_irq.c:1168 drm_vblank_put+0xb2/0xb8 [drm]

Oct 01 00:43:55 larry-swarga kernel: Modules linked in: fuse ipt_MASQUERADE nf_nat_masquerade_ipv4 xfrm_user xfrm_algo iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype iptable_filter xt_conntrack nf_nat nf_conntrack br_netfilter bridge stp llc raid1 amdkfd amd_i

Oct 01 00:43:55 larry-swarga kernel:  fjes soundcore tpm_tis wmi tpm_tis_core tpm button shpchp sch_fq_codel ip_tables x_tables sd_mod hid_generic usbhid hid ohci_pci serio_raw atkbd libps2 ahci libahci xhci_pci ehci_pci ohci_hcd libata xhci_hcd ehci_hcd usbcore scsi_mod usb_common

Oct 01 00:43:55 larry-swarga kernel: CPU: 1 PID: 2984 Comm: Xorg Tainted: G        W       4.8.0-rc8-drm-next-02450-g28a3965-dirty #2

Oct 01 00:43:55 larry-swarga kernel: Hardware name: To be filled by O.E.M. To be filled by O.E.M./M5A97, BIOS 1208 04/18/2012

Oct 01 00:43:55 larry-swarga kernel:  0000000000000286 00000000db090998 ffff8807eda1bc60 ffffffff8140ed00

Oct 01 00:43:55 larry-swarga kernel:  0000000000000000 0000000000000000 ffff8807eda1bca0 ffffffff81079dd3

Oct 01 00:43:55 larry-swarga kernel:  00000490a0261f95 ffff8807eda1bd98 ffff88080f8d6068 00000000ffffffea

Oct 01 00:43:55 larry-swarga kernel: Call Trace:

Oct 01 00:43:55 larry-swarga kernel:  [<ffffffff8140ed00>] dump_stack+0x63/0x83

Oct 01 00:43:55 larry-swarga kernel:  [<ffffffff81079dd3>] __warn+0xcb/0xe8

Oct 01 00:43:55 larry-swarga kernel:  [<ffffffff81079efd>] warn_slowpath_null+0x1d/0x20

Oct 01 00:43:55 larry-swarga kernel:  [<ffffffffa024f662>] drm_vblank_put+0xb2/0xb8 [drm]

Oct 01 00:43:55 larry-swarga kernel:  [<ffffffffa024f67f>] drm_crtc_vblank_put+0x17/0x20 [drm]

Oct 01 00:43:55 larry-swarga kernel:  [<ffffffffa026a925>] drm_mode_page_flip_ioctl+0x1b5/0x490 [drm]

Oct 01 00:43:55 larry-swarga kernel:  [<ffffffffa024de0c>] drm_ioctl+0x21c/0x4c0 [drm]

Oct 01 00:43:55 larry-swarga kernel:  [<ffffffff811f96a4>] ? __check_object_size+0x54/0x1d5

Oct 01 00:43:55 larry-swarga kernel:  [<ffffffffa026a770>] ? drm_mode_cursor2_ioctl+0x10/0x10 [drm]

Oct 01 00:43:55 larry-swarga kernel:  [<ffffffffa039c04f>] amdgpu_drm_ioctl+0x4f/0x88 [amdgpu]

Oct 01 00:43:55 larry-swarga kernel:  [<ffffffff8120f7ab>] do_vfs_ioctl+0xa3/0x5e8

Oct 01 00:43:55 larry-swarga kernel:  [<ffffffff8121a827>] ? __fget+0x77/0xa8

Oct 01 00:43:55 larry-swarga kernel:  [<ffffffff8120fd69>] SyS_ioctl+0x79/0x90

Oct 01 00:43:55 larry-swarga kernel:  [<ffffffff816ecc72>] entry_SYSCALL_64_fastpath+0x1a/0xa4

Oct 01 00:43:55 larry-swarga kernel: ---[ end trace 270078af45c64169 ]---

Oct 01 00:43:55 larry-swarga /usr/lib/gdm/gdm-x-session[2982]: (WW) AMDGPU(0): Page flip failed: Invalid argument

Additionally I have noticed that lspci -v lists the card as a RX 480 even though it is a 470.  On bootup, I see this message:

amdgpu 0000:01:00.0: Invalid PCI ROM header signature: expecting 0xaa55, got 0xffff

Please let me know if there is anything additional I can do to help debug this issue.

Thank you,

Larry Reaves

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