Bug 260121

Summary: panic: Unaligned free of 0xfffff8013cdfc800 from zone 0xfffff8001c279000(ada_ccb) slab 0xfffff8013cdfcfd8(7)
Product: Base System Reporter: Dennis Clarke <dclarke>
Component: kernAssignee: freebsd-bugs (Nobody) <bugs>
Status: New ---    
Severity: Affects Only Me CC: grahamperrin
Priority: ---    
Version: CURRENT   
Hardware: amd64   
OS: Any   
Attachments:
Description Flags
FreeBSD 14.0-CURRENT main-n250820-4082b189d2c panic none

Description Dennis Clarke 2021-11-29 15:41:24 UTC 
I have seen multiple panic's of this nature in the last few days. 

I did not have a serial port connected so I took the usual console
pictures. 

The most recent AMD64 snapshot also does this sort of panic while
booted from the disc1.iso image and running as a "live dvd".

I will attach photos and am now trying to somehow rescue the ZFS ZPool
storage from the system.
Comment 1 Dennis Clarke 2021-11-29 15:47:00 UTC 
Created attachment 229798 [details]
FreeBSD 14.0-CURRENT main-n250820-4082b189d2c panic
Comment 2 Graham Perrin freebsd_committer freebsd_triage 2021-12-01 00:13:52 UTC 
Whilst I can't comment on the details of the kernel panic, I see the AHCI reset immediately prior to panic. 

Prior to the reset, repeatedly: 

> (ada4:ahcich5:0:0:0): CAM status: Uncorrectable parity/CRC error

Maybe a hardware issue?