http://bugzilla.opensuse.org/show_bug.cgi?id=959230 Bug ID: 959230 Summary: Ralink 5370 wifi connection stalls Classification: openSUSE Product: openSUSE Distribution Version: Leap 42.1 Hardware: x86-64 OS: openSUSE 42.1 Status: NEW Severity: Normal Priority: P5 - None Component: Kernel Assignee: kernel-maintainers@forge.provo.novell.com Reporter: toomas.aas@raad.tartu.ee QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- I use an USB wifi adapter based on Ralink RT5370 chip: $ lsusb Bus 001 Device 002: ID 148f:5370 Ralink Technology, Corp. RT5370 Wireless Adapter Immediately after boot, network works fine, but after some time all network communication ceases and an endless stream of messages like this keeps filling dmesg: kernel: ieee80211 phy0: rt2x00usb_vendor_request: Error - Vendor Request 0x07 failed for offset 0x7010 with error -110 kernel: ieee80211 phy0: rt2x00usb_vendor_request: Error - Vendor Request 0x06 failed for offset 0x7010 with error -110 kernel: ieee80211 phy0: rt2x00usb_vendor_request: Error - Vendor Request 0x06 failed for offset 0x0404 with error -110 After rebooting, I can again use the network for some time, but soon the problem reappears. Interesting thing is that this only happens if the system has 10 GB RAM. My system has 2x1GB plus 2x4GB DIMMs, and when I remove one of the 4 GB DIMMs (thus reducing the amount of memory to 6 GB) the problem does not appear. To rule out the possibility of bad DIMM I have run memtest86 for several hours without finding any problems, also the system is rock solid with 10 GB RAM when I remove the USB wireless adapter and use wired Ethernet. Version information: $ uname -a Linux susa 4.1.13-5-default #1 SMP PREEMPT Thu Nov 26 16:35:17 UTC 2015 (49475c3) x86_64 x86_64 x86_64 GNU/Linux $ /usr/sbin/modinfo rt2x00usb filename: /lib/modules/4.1.13-5-default/kernel/drivers/net/wireless/rt2x00/rt2x00usb.ko license: GPL description: rt2x00 usb library version: 2.3.0 author: http://rt2x00.serialmonkey.com srcversion: 3F336708588FABE8A5041C1 depends: usbcore,rt2x00lib,mac80211 intree: Y vermagic: 4.1.13-5-default SMP preempt mod_unload modversions signer: openSUSE Secure Boot Signkey sig_key: 03:32:FA:9C:BF:0D:88:BF:21:92:4B:0D:E8:2A:09:A5:4D:5D:EF:C8 sig_hashalgo: sha256 -- You are receiving this mail because: You are on the CC list for the bug.