В Вс, 11/05/2025 в 22:40 +0530, Vasanthakumar Thiagarajan пишет: > > > On 5/11/2025 12:30 AM, Alexander Tsoy wrote: > > Hello! > > > > I recently got two QCNCM865 (wcn7850) cards and experience kernel > > panics on different systems and different kernel versions. Card > > info: > > > > [ 13.584230] ath12k_pci 0000:0b:00.0: BAR 0 [mem 0xfc200000- > > 0xfc3fffff 64bit]: assigned > > [ 13.584252] ath12k_pci 0000:0b:00.0: enabling device (0000 -> > > 0002) > > [ 13.584636] ath12k_pci 0000:0b:00.0: MSI vectors: 16 > > [ 13.584644] ath12k_pci 0000:0b:00.0: Hardware name: wcn7850 > > hw2.0 > > [ 14.210605] ath12k_pci 0000:0b:00.0: chip_id 0x2 chip_family 0x4 > > board_id 0xff soc_id 0x40170200 > > [ 14.210613] ath12k_pci 0000:0b:00.0: fw_version 0x100301e1 > > fw_build_timestamp 2023-12-06 04:05 fw_build_id > > QC_IMAGE_VERSION_STRING=WLAN.HMT.1.0.c5-00481- > > QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 > > > > > > Kernels I've tried so far: 6.12.24..6.12.28, 6.14.5, 6.15.0-rc5 > > > > Synthetic load like pumping traffic via netcat or iperf seems > > unable to > > trigger this bug, but something like downloading of Steam games or > > torrents is triggering this bug very quickly. I was wrong. iperf3 with multiple parallel streams and bidirectional mode enabled triggered this panic in several seconds for me: iperf3 -t 3600 -P 10 --bidir -c ... > > > > Any ideas on what's going on here? I'm ready to test any patch. > > > > Can you try with > https://git.kernel.org/pub/scm/linux/kernel/git/ath/ath.git/commit/?id=763216fe6c5df95d122c71ef34c342427c987820 > > ? This patch seems to fix the problem. Thank you! I see a Fixes tag, so hopefully this commit will eventually hit stable trees. BTW, I also see IOMMU page faults under stress test (iperf3 command above). This seems to cause device reset, but at least my systems doesn't crash now.
