archlinux instability when using wifi

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archlinux instability when using wifi

Postby iafo1 » Wed Nov 18, 2015 5:06 pm

Hello,
I installed the last version (november 2015) of archlinux on my olimex imx233 maxi.
I configured the wifi and it works nicely but after a while I get the following error continuosly and I have to reset the board:

$this->bbcode_second_pass_code('', '[166508.110000] [<c000f780>] (unwind_backtrace) from [<c000d20c>] (show_stack+0x10/0x14)
[166508.110000] [<c000d20c>] (show_stack) from [<c009bf44>] (warn_alloc_failed+0xdc/0x124)
[166508.110000] [<c009bf44>] (warn_alloc_failed) from [<c009e194>] (__alloc_pages_nodemask+0x178/0x860)
[166508.110000] [<c009e194>] (__alloc_pages_nodemask) from [<c009ea7c>] (__alloc_page_frag+0x160/0x194)
[166508.110000] [<c009ea7c>] (__alloc_page_frag) from [<c051aa84>] (__netdev_alloc_skb+0x84/0xec)
[166508.110000] [<c051aa84>] (__netdev_alloc_skb) from [<bf168574>] (_rtl_rx_completed+0xac/0x1bc [rtl_usb])
[166508.110000] [<bf168574>] (_rtl_rx_completed [rtl_usb]) from [<c03f08c8>] (__usb_hcd_giveback_urb+0x70/0x108)
[166508.110000] [<c03f08c8>] (__usb_hcd_giveback_urb) from [<c03f09e8>] (usb_giveback_urb_bh+0x88/0xcc)
[166508.110000] [<c03f09e8>] (usb_giveback_urb_bh) from [<c00216bc>] (tasklet_action+0x74/0xd8)
[166508.110000] [<c00216bc>] (tasklet_action) from [<c002196c>] (__do_softirq+0xe0/0x244)
[166508.110000] [<c002196c>] (__do_softirq) from [<c0021d6c>] (irq_exit+0xc4/0x10c)
[166508.110000] [<c0021d6c>] (irq_exit) from [<c00514b8>] (__handle_domain_irq+0x50/0xa8)
[166508.110000] [<c00514b8>] (__handle_domain_irq) from [<c000dcf0>] (__irq_svc+0x50/0x64)
[166508.110000] [<c000dcf0>] (__irq_svc) from [<c02b7d0c>] (__loop_delay+0x4/0x10)
[166508.110000] Mem-Info:
[166508.110000] active_anon:424 inactive_anon:20 isolated_anon:0
[166508.110000] active_file:14 inactive_file:41 isolated_file:0
[166508.110000] unevictable:0 dirty:0 writeback:0 unstable:0
[166508.110000] slab_reclaimable:248 slab_unreclaimable:1864
[166508.110000] mapped:4 shmem:62 pagetables:19 bounce:0
[166508.110000] free:89 free_pcp:2 free_cma:0
[166508.110000] Normal free:356kB min:944kB low:1180kB high:1416kB active_anon:1696kB inactive_anon:80kB active_file:56kB inactive_file:164kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:65536kB managed:56220kB mlocked:0kB dirty:0kB writeback:0kB mapped:16kB shmem:248kB slab_reclaimable:992kB slab_unreclaimable:7456kB kernel_stack:480kB pagetables:76kB unstable:0kB bounce:0kB free_pcp:8kB local_pcp:8kB free_cma:0kB writeback_tmp:0kB pages_scanned:1896 all_unreclaimable? yes
[166508.110000] lowmem_reserve[]: 0 0
[166508.110000] Normal: 85*4kB (UM) 2*8kB (M) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 356kB
[166508.110000] 117 total pagecache pages
[166508.110000] 0 pages in swap cache
[166508.110000] Swap cache stats: add 0, delete 0, find 0/0
[166508.110000] Free swap = 0kB
[166508.110000] Total swap = 0kB
[166508.110000] 16384 pages RAM
[166508.110000] 0 pages HighMem/MovableOnly
[166508.110000] 2329 pages reserved
[166508.370000] kworker/u2:0: page allocation failure: order:0, mode:0x20
[166508.370000] CPU: 0 PID: 1430 Comm: kworker/u2:0 Tainted: G C 4.3.0-1-ARCH #1
[166508.370000] Hardware name: Freescale MXS (Device Tree)')

I haven't installed anything else but wpa_supplicant.
What is the problem? how to work it around?
Thank you.
iafo1
 
Posts: 4
Joined: Thu Nov 05, 2015 4:51 pm

Re: archlinux instability when using wifi

Postby WarheadsSE » Wed Nov 18, 2015 5:13 pm

This appears to be a problem with allocation of memory (skb) within the kernel. There might be a way to increase the reserved allotment for this, but I can't recall it at this time.
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Re: archlinux instability when using wifi

Postby iafo1 » Thu Nov 19, 2015 10:36 am

Any other cue? I am sorry but I am not an Informatic engeneering.
Thank you,
greetings!
iafo1
 
Posts: 4
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Re: archlinux instability when using wifi

Postby WarheadsSE » Thu Nov 19, 2015 2:01 pm

$this->bbcode_second_pass_quote('', '_')_netdev_alloc_skb
failed
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Re: archlinux instability when using wifi

Postby iafo1 » Wed Nov 25, 2015 2:10 pm

ok....
but still not clear what should I do.
Is it a bug due to me or to the kernel? Should I wait that it will be fixed in the next version of arch-linux or what?

It seems a little bit strange that I have to do all this work only to make the wifi to work!

Thank you
iafo1
 
Posts: 4
Joined: Thu Nov 05, 2015 4:51 pm


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