Date: Thu, 22 Nov 2018 15:39:47 -0500 From: Joe Clarke <jclarke@marcuscom.com> To: stable@freebsd.org Cc: jhb@freebsd.org Subject: Panic on 11-STABLE with Xen guest Message-ID: <00d6d9ae-d5d8-ed88-34ee-2e67c0ca8904@marcuscom.com>
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I believe after the commit 340016 for the dynamic IRQ layout, my Xen VM
started to panic. I just upgraded the kernel today and saw this:
xen: unable to map IRQ#2
panic: Unable to register interrupt override
cpuid = 0
KDB: stack backtrace:
#0 0xffffffff8060a4e7 at kdb_backtrace+0x67
#1 0xffffffff805c3787 at vpanic+0x177
#2 0xffffffff805c3603 at panic+0x43
#3 0xffffffff8093a766 at madt_parse_ints+0x96
#4 0xffffffff803353f9 at acpi_walk_subtables+0x29
#5 0xffffffff8093a5e6 at xenpv_register_pirqs+0x56
#6 0xffffffff80928296 at intr_init_sources+0x116
#7 0xffffffff8055eba8 at mi_startup+0x118
#8 0xffffffff8029902c at btext+0x2c
The following kernel works:
@(#)FreeBSD 11.2-STABLE #4: Thu Nov 1 02:24:07 EDT 2018
FreeBSD 11.2-STABLE #4: Thu Nov 1 02:24:07 EDT 2018
root@creme-brulee:/usr/obj/usr/src/sys/CREME-BRULEE
The following kernel produces the panic above immediately on boot:
@(#)FreeBSD 11.2-STABLE #5: Wed Nov 21 11:08:38 EST 2018
FreeBSD 11.2-STABLE #5: Wed Nov 21 11:08:38 EST 2018
root@creme-brulee:/usr/obj/usr/src/sys/CREME-BRULEE
Attached is a screen grab of the console of the panic.
Joe
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