users December 2014

users@lists.genode.org

25 participants
34 discussions

iwlwifi for 7260 card: DMA memory allocation fails
by Christian Menard 05 Dec '14

05 Dec '14

Hi everyone, First of all thanks for the great work on the new release, keep it up! I'm experimenting with the new iwlwifi driver on a device with 7260 card. I enabled support for this card as mentioned in the release notes and added the corresponding firmware file iwlwifi-7260-8.ucode. Unfortunately the driver is not working out of the box for this card. The problem breaks down to a failure during DMA memory allocation. Here an excerpt from wifi_drv's log: > Slab too large 131072 reqested 86032 cached 0 > dma alloc 81920 failed > Slab too large 131072 reqested 105428 cached 0 > dma alloc 101316 failed > .... > Slab too large 131072 reqested 86032 cached 0 > dma alloc 81920 failed > Slab too large 262144 reqested 175072 cached 0 > dma alloc 170960 failed I naively increased maximum slab size by setting SLAB_STOP_LOG2 in lxc_emul.cc to 20. Then failure changes to: > Failed to get slab for 262144 > dma alloc: 170960 failed So as it appears such a large slab cannot be allocated. Why is that? What would be the right way (tm) to resolve this issue? Thanks Christian

2 10

yacc, lxip and 14.11
by Vasily A. Sartakov 05 Dec '14

05 Dec '14

Hello. I have problem with building latest version of Genode: [@localhost dde_linux]$ make prepare make[1]: Entering directory `genode-14.11/repos/dde_linux' dde_linux update src/lib/usb/drivers/usb/host/dwc_otg dde_linux extract linux-3.14.5.tar.gz (usb) dde_linux extract linux-3.9.tar.gz (lxip) dde_linux extract linux-3.14.5.tar.gz (wifi) dde_linux extract libnl-3.2.25.tar.gz (libnl) dde_linux extract wpa_supplicant-2.2.tar.gz (wpa_supplicant) dde_linux generate libnl files yacc: e - line 9 of "src/lib/libnl/lib/route/pktloc_syntax.y", syntax error %locations ^ make[2]: *** [generate_libnl_files] Error 1 make[1]: *** [_install_in_port_dir] Error 2 make[1]: Leaving directory `genode-14.11/repos/dde_linux' [@localhost dde_linux]$ yacc -V yacc - 1.9 20130304 Version, syntax, something else? -- Vasily A. Sartakov sartakov@...104...

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Dynamic Memory Management
by Nobody III 01 Dec '14

01 Dec '14

As far as I can tell, init will only allocate fixed amounts of memory to each process. Is there a way to allow each process as much memory as it needs up to a certain limit (e.g. 1G) without reserving excess memory for each process?

2 2

USB Wifi
by Nobody III 01 Dec '14

01 Dec '14

May I put in a request for USB wireless support? I know that it may take a lot of effort, but I would really like support for my USB Ralink RT2870/RT3070 wireless adapter. With wireless support and better IDE support, I will be well-equipped to begin porting software to genode.

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users December 2014