[FoRK] Skype == Malware?

Stephen Williams sdw at lig.net
Mon Aug 26 09:13:19 PDT 2013


Skype == Malware now.

My always reliable MacPro Desktop, now several years old, has been locking up after 1-3 days.  At first, I assumed that the fans 
or RAM were going bad.

Then I noticed a consistent system crash report analysis association with zalloc failures apparently caused by Skype.  Is this 
some kind of plot?

Interval Since Last Panic Report:  2874210 sec
Panics Since Last Report:          4
Anonymous UUID: AA86548F-2E22-48A6-9C4F-76D40064E3A5

Mon Aug 26 09:00:16 2013
panic(cpu 0 caller 0xffffff80002447d9): "zalloc: \"semaphores\" (20684682 elements) retry fail 3, kfree_nop_count: 
16"@/SourceCache/xnu/xnu-1699.32.7/osfmk/kern/zalloc.c:1766
Backtrace (CPU 0), Frame : Return Address
0xffffff81d25f3c50 : 0xffffff8000220792
0xffffff81d25f3cd0 : 0xffffff80002447d9
0xffffff81d25f3db0 : 0xffffff800023557e
0xffffff81d25f3df0 : 0xffffff800025cd6e
0xffffff81d25f3e20 : 0xffffff8000223096
0xffffff81d25f3e50 : 0xffffff80002148a9
0xffffff81d25f3eb0 : 0xffffff800021bbd8
0xffffff81d25f3f10 : 0xffffff80002af140
0xffffff81d25f3fb0 : 0xffffff80002dab5e

BSD process name corresponding to current thread: Skype
Boot args: serverperfmode=1

Mac OS version:
11G63

Kernel version:
Darwin Kernel Version 11.4.2: Thu Aug 23 16:25:48 PDT 2012; root:xnu-1699.32.7~1/RELEASE_X86_64
Kernel UUID: FF3BB088-60A4-349C-92EA-CA649C698CE5
System model name: MacPro3,1 (Mac-F42C88C8)

System uptime in nanoseconds: 39536870674476
vm objects:58475648
vm object hash entri:7911120
VM map entries:8499200
pv_list:12201984
kalloc.16:11198464
kalloc.32:2011136
kalloc.64:184782848
kalloc.128:13258752
kalloc.256:192999424
kalloc.512:5181440
kalloc.1024:2772992
kalloc.2048:11649024
kalloc.4096:6688768
kalloc.8192:3072000
vm pages:296086608
mem_obj_control:3166208
ipc ports:3929306384
semaphores:1654774560
threads:1888320
uthreads:1073088
vnodes:74400744
namecache:31220160
HFS node:98344896
HFS fork:25272320
buf.4096:1515520
buf.8192:15769600
buf headers:34467840
ubc_info zone:14216400
vnode pager structur:7898880
Kernel Stacks:3031040
PageTables:107802624
Kalloc.Large:40551516

Backtrace suspected of leaking: (outstanding bytes: 714104)
0xffffff8000217739
0xffffff80002355e1
0xffffff800025cd6e
0xffffff8000223096
0xffffff80002148a9
0xffffff800021bbd8
0xffffff80002af140



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