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Bug #12712

xnf calls ddi_dma_nextcookie too many times and panics the system

Added by Andrew Stormont 2 months ago. Updated 17 days ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
-
Start date:
Due date:
% Done:

0%

Estimated time:
Difficulty:
Medium
Tags:
Gerrit CR:

Description

I can't provide a stack trace unfortunately as I've only observed this issue in Amazon's EC2 but it's pretty obvious what's happening from look at the code: it's calling ddi_dma_nextcookie at the end of a loop in xnf_mblk_map. The call on the final iteration tickles the check in ddi_dma_nextcookie causing the system to panic.


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Related issues

Related to illumos gate - Feature #12183: Want new IPD 13 DMA Cookie APIsClosed

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History

#1

Updated by Andrew Stormont 2 months ago

  • Subject changed from xnf calls ddi_dma_nextcookie too many times panics the system to xnf calls ddi_dma_nextcookie too many times and panics the system
#2

Updated by Andrew Stormont about 2 months ago

#3

Updated by Al Slater about 2 months ago

I have hit the same issue after upgrading an aws instance to omnios r151034. I managed to capture a screenshot of the top of the stack trace.

#4

Updated by Electric Monk 17 days ago

  • Gerrit CR set to 676

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