[DragonFlyBSD - Bug #2971] (Feedback) kernel 4.7: buildworld causes panic: Bad link elm 0xffffffe1c766d500 prev->next != elm

[bugtracker-admin at leaf.dragonflybsd.org]

Issue #2971 has been updated by liweitianux.

Status changed from New to Feedback

Hello.  Any new findings to this issue?

Buildworld has been run many times on HAMMER, and we haven't gotten another similar issue report.  The memory issue suggested by sephe may better explain this issue.

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Bug #2971: kernel 4.7: buildworld causes panic: Bad link elm 0xffffffe1c766d500 prev->next != elm
http://bugs.dragonflybsd.org/issues/2971#change-13725

* Author: peeter
* Status: Feedback
* Priority: Normal
* Assignee: 
* Category: 
* Target version: 
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The panic happened while doing buildworld. I am not entirely sure that the panic is not caused by a hardware error since prior to the panic two CRC errors showed up in /var/log/messages. On the other hand, it seems they might not be caused by a hardware error since prior to the panic I had seen CRC errors a couple of times and reinstalling the system got rid of them. In more detail, the machine has gone the following cycle of couple of times: 

1 - system has a panic (related to the kernel module I'm developing)
2 - hammer checkmap starts reporting errors occasionally
3 - then CRC errors show up /var/log/messages
4 - re-install the system and all errors vanish
5 - go back to 1

However, the last time after step 3 "make buildworld" led to this panic. 


---Files--------------------------------
hammer-crc-error-crash.txt (9.48 KB)


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