Server crashes when player spawns (IVP failed in ivu_vhash.cxx)

[misterphyrephox]

Hello all. I'm trying to get a Team Fortress 2 server running on ubuntu-server. I can start up the server, and even join the server, but when I choose my team and class and prepare to spawn, the server crashes with the following (twice repeated) error message:

Code:

IVP Failed at /home/chrisg/rel/src/ivp/ivp_utility/ivu_vhash.cxx 157
IVP Failed at /home/chrisg/rel/src/ivp/ivp_utility/ivu_vhash.cxx 157

Also, when the server starts up, there are numerous warnings about "Bad data found in model" -- I'm not sure if this is to be expected. For example:

Code:

Bad data found in model "pyrogib002_reference.smd" (bad bone weights)
Bad data found in model "pyrogib005_reference.smd" (bad bone weights)
Bad data found in model "pyrogib003_reference.smd" (bad bone weights)
Bad data found in model "pyrogib007_reference.smd" (bad bone weights)

I tried running srcds_run with -debug, but the debug.log doesn't look like it has any useful information (it just says the server crashed and then the time; the file is about 4 lines in total).
I looked up this problem online, and it seems other people have experienced this crash, although I saw no solution. Some people said that the crash was because the server requires SSE, but it looks like I have it. Here is my /proc/cpuinfo:

Code:

processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 6
model           : 10
model name      : AMD Athlon(tm)
stepping        : 0
cpu MHz         : 1143.890
cache size      : 512 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse syscall mmxext 3dnowext 3dnow
bogomips        : 2290.07

Thanks in advance for any help you can offer!