Hi, [ sorry if I send this to wrong address but you are listed as maintainers for MARVELL MWIFIEX WIRELESS DRIVER ] On my chromebook samsung peach pi (exynos-5800) wifi driver stops to work at random time, sometimes after few hours and sometimes after day or two. dmesg shows this (and repeating till reboot): ---------------------------------------------- [ 3718.465572] mwifiex_sdio mmc1:0001:1: host_to_card, write iomem (1) failed: -110 [ 3718.465925] mwifiex_sdio mmc1:0001:1: host_to_card, write iomem (2) failed: -110 [ 3718.466262] mwifiex_sdio mmc1:0001:1: host_to_card, write iomem (3) failed: -110 [ 3718.466340] mwifiex_sdio mmc1:0001:1: mwifiex_write_data_async failed: 0xFFFFFFFF [ 3718.916823] mwifiex_sdio mmc1:0001:1: read mp_regs failed [ 3718.917338] mwifiex_sdio mmc1:0001:1: host_to_card, write iomem (1) failed: -110 [ 3718.917522] mwifiex_sdio mmc1:0001:1: host_to_card, write iomem (2) failed: -110 [ 3718.917689] mwifiex_sdio mmc1:0001:1: host_to_card, write iomem (3) failed: -110 [ 3718.917804] mwifiex_sdio mmc1:0001:1: mwifiex_write_data_async failed: 0xFFFFFFFF [ 3718.918096] mwifiex_sdio mmc1:0001:1: host_to_card, write iomem (1) failed: -110 [ 3718.918371] mwifiex_sdio mmc1:0001:1: host_to_card, write iomem (2) failed: -110 [ 3718.918501] mwifiex_sdio mmc1:0001:1: host_to_card, write iomem (3) failed: -110 [ 3718.918546] mwifiex_sdio mmc1:0001:1: mwifiex_11n_aggregate_pkt: host_to_card failed: 0xffffffff [ 3719.245817] mwifiex_sdio mmc1:0001:1: host_to_card, write iomem (1) failed: -110 [ 3719.246101] mwifiex_sdio mmc1:0001:1: host_to_card, write iomem (2) failed: -110 [ 3719.246381] mwifiex_sdio mmc1:0001:1: host_to_card, write iomem (3) failed: -110 [ 3719.246449] mwifiex_sdio mmc1:0001:1: mwifiex_write_data_async failed: 0xFFFFFFFF [ 3719.437566] mwifiex_sdio mmc1:0001:1: host_to_card, write iomem (1) failed: -110 [ 3719.437842] mwifiex_sdio mmc1:0001:1: host_to_card, write iomem (2) failed: -110 [ 3719.438119] mwifiex_sdio mmc1:0001:1: host_to_card, write iomem (3) failed: -110 [ 3719.438184] mwifiex_sdio mmc1:0001:1: mwifiex_write_data_async failed: 0xFFFFFFFF [ 3719.935954] mwifiex_sdio mmc1:0001:1: host_to_card, write iomem (1) failed: -110 [ 3719.936173] mwifiex_sdio mmc1:0001:1: host_to_card, write iomem (2) failed: -110 [ 3719.936301] mwifiex_sdio mmc1:0001:1: host_to_card, write iomem (3) failed: -110 [ 3719.936348] mwifiex_sdio mmc1:0001:1: mwifiex_write_data_async failed: 0xFFFFFFFF [ 3720.149548] mwifiex_sdio mmc1:0001:1: host_to_card, write iomem (1) failed: -110 [ 3720.149870] mwifiex_sdio mmc1:0001:1: host_to_card, write iomem (2) failed: -110 [ 3720.150212] mwifiex_sdio mmc1:0001:1: host_to_card, write iomem (3) failed: -110 [ 3720.150477] mwifiex_sdio mmc1:0001:1: mwifiex_write_data_async failed: 0xFFFFFFFF [ 3720.269532] mwifiex_sdio mmc1:0001:1: host_to_card, write iomem (1) failed: -110 [ 3720.269754] mwifiex_sdio mmc1:0001:1: host_to_card, write iomem (2) failed: -110 [ 3720.269937] mwifiex_sdio mmc1:0001:1: host_to_card, write iomem (3) failed: -110 [ 3720.269988] mwifiex_sdio mmc1:0001:1: mwifiex_write_data_async failed: 0xFFFFFFFF [ 3720.358851] mwifiex_sdio mmc1:0001:1: host_to_card, write iomem (1) failed: -110 ---------------------------------------------- kernel is mainline 5.14.4 without patches, but I recall that I noticed this crashes on older ones but can't remember exact version. I don't have idea how I could trigger this bug to appear because I din't find anything related which could trigger it. I'm ready to test patches if anyone made them but I don't have experience in kernel drivers programming so can't make fix. Thanks in advance