Openmoko Bug #2309: hangs during resume after printing GSTATUS4

[Openmoko Public Trac]

#2309: hangs during resume after printing GSTATUS4
-----------------------------+----------------------------------------------
 Reporter:  lindi            |          Owner:  openmoko-kernel      
     Type:  defect           |         Status:  new                  
 Priority:  normal           |      Milestone:                       
Component:  System Software  |        Version:                       
 Severity:  normal           |       Keywords:  resume suspend kernel
 Haspatch:  0                |      Blockedby:                       
Estimated:                   |    Patchreview:                       
 Blocking:                   |   Reproducible:  rarely               
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Comment(by lindi):

 I hit this again. This time I connected the phone via USB to laptop and
 removed the battery with the hope that I could measure USB power
 consumption with laptop. However, I heard maybe a really low frequency
 sound from the phone when I removed the battery. I put the battery back
 and noticed that the device was booting.

 Since the battery was removed for a while the ramconsole output got really
 garbled:

 {{{
 00076680  48 33 61 62 6c 69 6a 67  20 48 52 11 20 35 22 20  |H3ablijg HR.
 5" |
 00076690  28 10 29 6e 20 31 19 36  29 02 3c 33 3a 4b 33 16  |(.)n
 1.6).<3:K3.|
 000766a0  30 11 36 31 2e 10 30 31  20 30 30 5c 20 63 44 25  |0.61..01 00\
 cD%|
 000766b0  65 50 2a 20 61 32 71 20  73 60 42 65 75 50 00 69  |eP* a2q
 s`BeuP.i|
 000766c0  21 73 6b 72 3a 00 62 66  26 66 66 64 66 64 2c 24
 |!skr:.bf&ffdfd,$|
 000766d0  64 66 64 66 24 42 22 0a  3c 32 3e 59 33 17 18 31
 |dfdf$B".<2>Y3..1|
 000766e0  26 30 04 31 30 34 30 30  00 55 20 47 02 54 01 10  |&0.10400.U
 G.T..|
 000766f0  45 52 12 20 00 70 13 30  23 38 21 60 45 23 0a 3c  |ER.
 .p.0#8!`E#.<|
 00076700  07 1e 42 33 17 30 30 36  30 22 11 30 11 30 30 30
 |..B3.0060".0.000|
 00076710  5d 20 07 13 14 41 54 51  51 34 00 10 38 10 30 30  |] ...AT
 }}}

 However, one can easily see patterns like "Disabling IRQ 56 (pin 196)" and
 "sleep: irq wakeup masks: fffffffd,fffffdcf".

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Ticket URL: <https://docs.openmoko.org/trac/ticket/2309#comment:1>
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