NetBSD Problem Report #54714

From  Sun Nov 24 02:30:22 2019
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Date: Sun, 24 Nov 2019 02:30:21 +0000 (UTC)
Subject: Kernel Panics with:
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>Number:         54714
>Category:       kern
>Synopsis:       Kernel Panics with:
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Nov 24 02:35:00 +0000 2019
>Originator:     James Parsons
>Release:        NetBSD-current (11/23/2019)
NetBSD 9.99.18 NetBSD 99.99.18 (GENERIC) #0: Sat Nov 23 14:50:58 EST 2019 
I'm running a custom compiled NetBSD-current on a very lightweight x64 box (2GB RAM, 2 core AMD E-2100 CPU, etc.) The sources I compiled from were the current tar files as of 10/23/2019

The system has two network interfaces . One is a Realtek ethernet adapter powered by the re driver and the other a Realtek wireless card powered by the rtwn driver.

I was going to bring the ethernet interface up, but wasn't paying attention and accidentally typed the name of the other interface so: `ifconfig rtwn0 up`. After entering that, the system froze for a second before rebooting. Upon rebooting, the kernel panics with the following:

    `[ 56.6326531] panic kernel diagnostic assertion "(!cpu_intr_p() && !cpu_softintr_p()) || (pc->pc_pool.pr_ipl != IPL_NONE || cold || panicstr != NULL)" failed: file "/path/to/kernel/source/sys/kern/subr_pool.c" line 2553 pool_cache_get_addr: [pnbufpl] is IPL_NONE, but called from interrupt context` 

And then gets stuck in a reboot loop. With that same panic every time. I can escape the boot loop in single user mode, but am not sure what to do from there.
Not quite sure exactly how reproducible it is. As stated before, the initial crash was caused by running `ifconfig rtwn0 up`

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