Op 13.11.2020 om 12:08 schreef Carl Huang:
Checked some logs. Looks when the error happens, the physical address are
very small. Its' between 20M - 30M.

So could you have a try to reserve the memory starting from 20M?
Add "memmap=10M\$20M" to your grub.cfg or edit in kernel parameters. so ath11k
can't allocate from these address.

Or you can try to reserve even larger memory starting from 20M.

That worked, booting with memmap=12M$20M resulted in the working wifi:

$ journalctl -b | grep -iP '05:00|ath11k|Linux version|memmap'
Nov 13 13:45:34 razor kernel: Linux version 5.10.0-rc2 (root@razor) (gcc (Gentoo 9.3.0-r1 p3) 9.3.0, GNU ld (Gentoo 2.34 p6) 2.34.0) #1 SMP Fri Nov 13 13:29:48 CET 2020 Nov 13 13:45:34 razor kernel: Command line: ro root=/dev/nvme0n1p2 resume=/dev/nvme1n1p1 zram.num_devices=2 memmap=12M$20M quiet
Nov 13 13:45:34 razor kernel:   DMA zone: 64 pages used for memmap
Nov 13 13:45:34 razor kernel:   DMA32 zone: 5165 pages used for memmap
Nov 13 13:45:34 razor kernel:   Normal zone: 255840 pages used for memmap
Nov 13 13:45:34 razor kernel: Kernel command line: ro root=/dev/nvme0n1p2 resume=/dev/nvme1n1p1 zram.num_devices=2 memmap=12M$20M quiet ro root=/dev/nvme0n1p2 resume=/dev/nvme1n1p1 zram.num_devices=2 memmap=12M$20M quiet
Nov 13 13:45:34 razor kernel: pci 0000:05:00.0: [17cb:1101] type 00 class 
0x028000
Nov 13 13:45:34 razor kernel: pci 0000:05:00.0: reg 0x10: [mem 
0xd2100000-0xd21fffff 64bit]
Nov 13 13:45:34 razor kernel: pci 0000:05:00.0: PME# supported from D0 D3hot 
D3cold
Nov 13 13:45:34 razor kernel: pci 0000:05:00.0: 4.000 Gb/s available PCIe bandwidth, limited by 5.0 GT/s PCIe x1 link at 0000:00:1c.1 (capable of 7.876 Gb/s with 8.0 GT/s PCIe x1 link)
Nov 13 13:45:34 razor kernel: pci 0000:05:00.0: Adding to iommu group 21
Nov 13 13:45:35 razor kernel: ath11k_pci 0000:05:00.0: WARNING: ath11k PCI 
support is experimental!
Nov 13 13:45:35 razor kernel: ath11k_pci 0000:05:00.0: BAR 0: assigned [mem 
0xd2100000-0xd21fffff 64bit]
Nov 13 13:45:35 razor kernel: ath11k_pci 0000:05:00.0: enabling device (0000 -> 
0002)
Nov 13 13:45:35 razor kernel: ath11k_pci 0000:05:00.0: MSI vectors: 32
Nov 13 13:45:35 razor kernel: mhi 0000:05:00.0: Requested to power ON
Nov 13 13:45:35 razor kernel: mhi 0000:05:00.0: Power on setup success
Nov 13 13:45:35 razor kernel: ath11k_pci 0000:05:00.0: Respond mem req failed, 
result: 1, err: 0
Nov 13 13:45:35 razor kernel: ath11k_pci 0000:05:00.0: qmi failed to respond fw 
mem req:-22
Nov 13 13:45:35 razor kernel: ath11k_pci 0000:05:00.0: req mem_seg[0] 0x2100000 
524288 1
Nov 13 13:45:35 razor kernel: ath11k_pci 0000:05:00.0: req mem_seg[1] 0x2180000 
524288 1
Nov 13 13:45:35 razor kernel: ath11k_pci 0000:05:00.0: req mem_seg[2] 0x2200000 
524288 1
Nov 13 13:45:35 razor kernel: ath11k_pci 0000:05:00.0: req mem_seg[3] 0x2280000 
294912 1
Nov 13 13:45:35 razor kernel: ath11k_pci 0000:05:00.0: req mem_seg[4] 0x2300000 
524288 1
Nov 13 13:45:35 razor kernel: ath11k_pci 0000:05:00.0: req mem_seg[5] 0x2380000 
524288 1
Nov 13 13:45:35 razor kernel: ath11k_pci 0000:05:00.0: req mem_seg[6] 0x2400000 
458752 1
Nov 13 13:45:35 razor kernel: ath11k_pci 0000:05:00.0: req mem_seg[7] 0x20c0000 
131072 1
Nov 13 13:45:35 razor kernel: ath11k_pci 0000:05:00.0: req mem_seg[8] 0x2480000 
524288 4
Nov 13 13:45:35 razor kernel: ath11k_pci 0000:05:00.0: req mem_seg[9] 0x2500000 
360448 4
Nov 13 13:45:35 razor kernel: ath11k_pci 0000:05:00.0: req mem_seg[10] 
0x20a4000 16384 1
Nov 13 13:45:35 razor kernel: ath11k_pci 0000:05:00.0: chip_id 0x0 chip_family 
0xb board_id 0xff soc_id 0xffffffff
Nov 13 13:45:35 razor kernel: ath11k_pci 0000:05:00.0: fw_version 0x101c06cc fw_build_timestamp 2020-06-24 19:50 fw_build_id Nov 13 13:45:37 razor NetworkManager[782]: <info> [1605271537.1168] rfkill1: found Wi-Fi radio killswitch (at /sys/devices/pci0000:00/0000:00:1c.1/0000:05:00.0/ieee80211/phy0/rfkill1) (driver ath11k_pci) Nov 13 13:45:39 razor ModemManager[722]: <info> Couldn't check support for device '/sys/devices/pci0000:00/0000:00:1c.1/0000:05:00.0': not supported by any plugin
Nov 13 13:45:45 razor kernel: ath11k_pci 0000:05:00.0: failed to enqueue rx 
buf: -28

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