[Bug 93301] ns2_linux32: radeon VM fault / VM_CONTEXT1_PROTECTION_FAULT_ADDR

[bugzilla-daemon@freedesktop.org]

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https://bugs.freedesktop.org/show_bug.cgi?id=93301

            Bug ID: 93301
           Summary: ns2_linux32: radeon VM fault /
                    VM_CONTEXT1_PROTECTION_FAULT_ADDR
           Product: Mesa
           Version: git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: dev@illwieckz.net
        QA Contact: dri-devel@lists.freedesktop.org

Created attachment 120427
  --> https://bugs.freedesktop.org/attachment.cgi?id=120427&action=edit
syslog (Linux 4.3, mesa git, radeon hawaii r9 390X)

Hi I (re) tried Natural Selection 2 yesterday, and I it crashed (as expected),
and this time the syslog said:

```
Dec  8 07:20:25 gollum kernel: [16588.241364] radeon 0000:01:00.0: GPU fault
detected: 146 0x0e65e014
Dec  8 07:20:25 gollum kernel: [16588.241368] radeon 0000:01:00.0:  
VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x00007673
Dec  8 07:20:25 gollum kernel: [16588.241369] radeon 0000:01:00.0:  
VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x050E0014
Dec  8 07:20:25 gollum kernel: [16588.241370] VM fault (0x04, vmid 2) at page
30323, write from 'CB1' (0x43423100) (224)
---8<--- 120 000+ lines ---------------------
Dec  8 07:22:58 gollum kernel: [16741.758495] radeon 0000:01:00.0: GPU fault
detected: 146 0x06a59014
Dec  8 07:22:58 gollum kernel: [16741.758506] radeon 0000:01:00.0:  
VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x00007673
Dec  8 07:22:58 gollum kernel: [16741.758512] radeon 0000:01:00.0:  
VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x05150014
Dec  8 07:22:58 gollum kernel: [16741.758518] VM fault (0x04, vmid 2) at page
30323, write from 'CB6' (0x43423600) (336)
Dec  8 07:23:03 gollum kernel: [16746.694729] ns2_linux32[16192]: segfault at 1
ip 00000000f3bf8d12 sp 00000000f0b9adf8 error 4 in
libc-2.21.so[f3acc000+1b4000]
```

Well, I'm not expecting to see this game working one day, I own this game since
2013-12-15 (it's almost two years) and it never worked, so these guys proved
their product is a joke and I don't expect nothing from them. But perhaps this
bug can help you to track things on your side, that's why I report it.

When the error happened, NS2 was loading assets since 20min to load a tutorial
map.

I don't have more logs currently but if you have some ideas of things I can
record, I can try to reproduce it. I agree the current log is a bit quiet.

I've already seen radeon errors like that before in a dpm issue (see #93288 )
but the current bug is unrelated to dpm (dpm was inactive in the current case).

I use a Radeon R9 390X with Mesa git on Linux 4.3 here.

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