Something like following should allow you to get the zio details
assuming the compile has optimised it out:

cd /var/crash
kgdb /boot/kernel/kernel /var/crash/vmcore.5
kgdb> frame 5
kgdb> print zio


----- Original Message ----- From: "Larry Rosenman" <>
To: "Steven Hartland" <>
Cc: <>; <>
Sent: Sunday, July 20, 2014 8:20 PM
Subject: Re: [ZFS][PANIC] Solaris Assert/zio.c:2548

On 2014-07-20 14:18, Steven Hartland wrote:
Can you provide the details of the zio which caused the panic?

Also does any of your pools support trim?

No, on the trim.  Can you walk me through getting the zio you need?

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