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Re: Bug#661861: PC Engines Alix 3C2: Boot hang waiting for /dev to be fully populated



Control: reassign -1 src:linux

On Du, 16 feb 14, 20:38:14, Daniel Bayer wrote:
> Hi!
> 
> I just had the same problem on Alix 2d3 with BIOS v0.99 while
> updating to wheezy. It turned out that the system hangs when 
> loading the cs5535-mfgpt module:
> 
> | Waiting for /dev to be fully populated...
> | [    8.547274] cfg80211: Calling CRDA to update world regulatory domain
> | [    8.554139] input: PC Speaker as /devices/platform/pcspkr/input/input0
> | [    9.071321] geode-aes: GEODE AES engine enabled.
> | [    9.073504] ath5k 0000:00:0c.0: registered as 'phy0'
> | [    9.802039] Error: Driver 'pcspkr' is already registered, aborting...
> | [    9.885425] cs5535-mfgpt cs5535-mfgpt: reserved resource region [io 0x6200-0x623f]
> 
> The module should output a second line reporting the number of free
> timers. This did not happen. So I assume the system crashed somewhere
> in the scan_times() function of cs5535-mfgpt. I played a little bit
> with the mfgptfix boot command line option, but the system always
> crashed. But simply removing the cs5535-mfgpt fixed the problem.
> 
> In the end I found the "MFGPT workaround" option in the BIOS, which was enabled:
> 
> | BIOS setup:
> | 
> | (9) 9600 baud (2) 19200 baud *3* 38400 baud (5) 57600 baud (1) 115200 baud
> | (C) CHS mode *L* LBA mode *W* HDD wait *V* HDD slave *U* UDMA enable
> | *M* MFGPT workaround
> | (P) late PCI init
> | *R* Serial console enable
> | (E) PXE boot enable
> | (X) Xmodem upload
> | (Q) Quit
> 
> After disabling it the system booted fine with cs5535-mfgpt enabled and
> mfgptfix not set. Now everything works as expected.
> 
> 
> Daniel

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