[OmniOS-discuss] kernel panic "kernel heap corruption detected" when creating zero eager disks

Dan McDonald danmcd at omniti.com
Thu Mar 26 05:06:47 UTC 2015

> On Mar 26, 2015, at 12:58 AM, wuffers <moo at wuffers.net> wrote:
> | genunix:kmem_free+1c8 () | stmf_sbd:sbd_handle_write_same_xfer_completion+14d () | stmf_sbd:sbd_dbuf_xfer_done+b1 () | stmf:stmf_worker_task+376 () | unix:thread_start+8 () |

Hmmph.  The WRITE_SAME code, huh?

I know Nexenta's done a LOT of improvements on this in illumos-nexenta.  It might be time to upstream some of what they've done.  I know it's a moving target (COMSTAR is not a well-written subsystem), so it may take some unravelling.

I'm downloading the dump, in case the actual panic is more straightforward than most code in there.  I worked on this a long time ago back when I was at Nexenta. It was provided to me by a contractor, and I had to bang it into shape for upstreaming.  Clearly I missed something.


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