15.09.2014 12:03, Arend van Spriel wrote: > Hi Michael, Hello again! I'm sorry for the long delay, I'll describe what happens in a moment. > Did you have any opportunity to create a log file. Got a question from > someone else who got bad bcm4313 behaviour after a certain upgrade. Did > you have the same experience? No, I didn't have that opportunity. As I mentioned before, the second laptop where I faced the same problem with brcm4313 wasn't mine, and I had to return it back to its owner, so I had nothing to test things on for quite some time. However, a few days ago, after I was searching for a good notebook of my own (obviously without broadcom parts ;), another friend of mine sent me a gift - a new laptop. But this one has even worse wifi card (from linux support PoV anyway) -- it is mediatek (formely ralink) MT7630e card. After trying to build drivers for it for a while, I gave up, and an idea come to me to swap this mediatek card with that broadcom 4313 card. And surprizingly it worked - both laptops accepted the "new" cards and I verified both works. So now the mediatek from my laptop works in my friend's hp envy, and his brcm4313 works on my new asus. So from now on I again have some playground for this stuff. As I mentioned before, the card appears to work fine, at least at first, I wasn't able to trigger any lockups/stalls before. Now I can't trigger any stalls either, again, at least easily. However, I found a 100%-reliable - so far - reproducer for the initial behavour I described in the very first message in this thread, which soon be one year old... Namely, after resume, the card does not work. ARP works, ping and DNS sometimes/somewhat work, inital TCP connection establisment works, but eg http download does not work, it stalls almost immediately. Also during resume, I see the following kernel messages: [ 202.607767] CPU: 2 PID: 2706 Comm: kworker/u9:0 Not tainted 3.16-amd64 #3.16.3 [ 202.607769] Hardware name: ASUSTeK COMPUTER INC. X200LA/X200LA, BIOS X200LA.204 06/16/2014 [ 202.607776] Workqueue: hci0 hci_power_on [bluetooth] [ 202.607778] 0000000000000000 0000000000000009 [ 202.607780] Restarting tasks ... ffffffff814208bf 0000000000000000 [ 202.607783] ffffffff8104c926 ffff8800d5843d08 ffff8800d052f300 ffff8801189ea940 [ 202.607786] ffff8800d5843d00 0000000000000000 ffffffff8131c0d9 0000000000000000 [ 202.607790] Call Trace: [ 202.607797] [<ffffffff814208bf>] ? dump_stack+0x41/0x51 [ 202.607802] [<ffffffff8104c926>] ? warn_slowpath_common+0x86/0xb0 [ 202.607807] [<ffffffff8131c0d9>] ? _request_firmware+0x439/0xa20 [ 202.607812] [<ffffffff8131c7a5>] ? request_firmware+0x35/0x60 [ 202.607816] [<ffffffffa0121780>] ? btusb_setup_bcm_patchram+0x70/0x3f0 [btusb] [ 202.607823] [<ffffffffa0a0618d>] ? hci_dev_do_open+0x24d/0x8c0 [bluetooth] [ 202.607829] [<ffffffff81082ade>] ? enqueue_task_fair+0x32e/0xce0 [ 202.607834] [<ffffffff8100bbb5>] ? sched_clock+0x5/0x10 [ 202.607839] [<ffffffff8107832b>] ? update_rq_clock+0x3b/0xd0 [ 202.607846] [<ffffffffa0a06818>] ? hci_power_on+0x18/0x120 [bluetooth] [ 202.607877] [<ffffffff8106cad0>] ? kthread_freezable_should_stop+0x60/0x60 [ 202.607881] [<ffffffff81425dbc>] ? ret_from_fork+0x7c/0xb0 [ 202.607885] [<ffffffff8106cad0>] ? kthread_freezable_should_stop+0x60/0x60 [ 202.607887] ---[ end trace da2a7947839f7b1e ]--- [ 202.607891] bluetooth hci0: firmware: brcm/BCM20702A0-0a5c-21e3.hcd will not be loaded [ 202.607894] Bluetooth: hci0: BCM: patch brcm/BCM20702A0-0a5c-21e3.hcd not found I dunno how related these are -- bluetooth is another function of this card. http://www.corpit.ru/mjt/tmp/brcmsmac-4313-trace-20140921.dat.gz -- this is a trace collected after resuming from suspend-to-disk, after the above kernel message, and doing this: stop network-manager rmmod brcmsmac brcmutil modpobe brcmsmac trace-cmd record brcmsmac:* & start network-manager wget http://<ip-over-wifi>/some-random-file <Ctrl+C> wget did received some series of packets, with pauses in-between, but overal the progress looks like it is stalled completely, there's almost no progress. This is 3.16.3 kernel. Note that reloading module after resume is not sufficient (I'll try reloading whole brcm stack). Thank you for your interest! /mjt -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
