Re: Weird crashes and slowdowns

[Rick Stevens]

On 03/27/2017 12:13 PM, Susi Lehtola wrote:
>  Hi,
>  
>  
>  I'm wondering if anyone else has noticed weird things happening on their
>  Intel laptops.
>  
>  My Lenovo U31-70 has been misbehaving for a long long time under Fedora.
>  Firefox and/or X often slow to a crawl, and sometimes X even crashes.
>  I'm wondering if this is due to a buggy video driver. 
I don't think your video driver is at cause. My first guess would be a
Firefox plugin that's the issue as there are a lot of anecdotal reports
of either Firefox or one or more of its plugins causing issues (such as
leaking memory).

First, run "top" and see what's eating CPU and/or memory. Check the
output of "free" or "vmstat" and see if you're using swap space
(using
"vmstat 5", look at the "si" and "so" columns). If
you're swapping a
lot, that'll slow your machine down a LOT.

Should you find it is firefox, you might also try using a different
browser or disabling all of Firefox's plugins and re-enabling them one
at a time. I think you'll probably find it.

>  
>  Some relevant info
>  
>  $ uname -r
>  4.9.14-200.fc25.x86_64
>  $ uptime
>   12:11:54 up 6 days, 22:55,  1 user,  load average: 1.11, 0.98, 0.87
>  $ ps aux|grep Xorg
>   1241 root      20   0 10.160g 4.014g 159388 S   1.1 52.1 648:10.37 Xorg
>  
>  $ lspci
>  00:00.0 Host bridge: Intel Corporation Broadwell-U Host Bridge -OPI (rev
>  09)
>  00:02.0 VGA compatible controller: Intel Corporation HD Graphics 5500
>  (rev 09)
>  00:03.0 Audio device: Intel Corporation Broadwell-U Audio Controller
>  (rev 09)
>  00:14.0 USB controller: Intel Corporation Wildcat Point-LP USB xHCI
>  Controller (rev 03)
>  00:16.0 Communication controller: Intel Corporation Wildcat Point-LP MEI
>  Controller #1 (rev 03)
>  00:1b.0 Audio device: Intel Corporation Wildcat Point-LP High Definition
>  Audio Controller (rev 03)
>  00:1c.0 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root
>  Port #1 (rev e3)
>  00:1c.2 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root
>  Port #3 (rev e3)
>  00:1c.3 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root
>  Port #4 (rev e3)
>  00:1d.0 USB controller: Intel Corporation Wildcat Point-LP USB EHCI
>  Controller (rev 03)
>  00:1f.0 ISA bridge: Intel Corporation Wildcat Point-LP LPC Controller
>  (rev 03)
>  00:1f.2 SATA controller: Intel Corporation Wildcat Point-LP SATA
>  Controller [AHCI Mode] (rev 03)
>  00:1f.3 SMBus: Intel Corporation Wildcat Point-LP SMBus Controller (rev 03)
>  02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
>  RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
>  03:00.0 Network controller: Qualcomm Atheros QCA6164 802.11ac Wireless
>  Network Adapter (rev 20)
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- Rick Stevens, Systems Engineer, AllDigital    ricks(a)alldigital.com -
- AIM/Skype: therps2        ICQ: 226437340           Yahoo: origrps2 -
-                                                                    -
-     The trouble with troubleshooting is that trouble sometimes     -
-                             shoots back.                           -
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