Re: nvmm-induced panic on -current

["David H. Gutteridge" <david%gutteridge.ca@localhost>]

On Sun, 5 Jan 2020, at 14:17:04 +0000, Chavdar Ivanov wrote:
> I just got:
> .....
> Jan  5 14:07:04 ymir /netbsd: [ 59319.7533581] panic: fpudna from
> kernel, ip 0xffffffff80226c3f, trapframe 0xffffdc81fab42c80
> Jan  5 14:07:04 ymir /netbsd: [ 59319.7533581] cpu0: Begin
> traceback...
> Jan  5 14:07:04 ymir /netbsd: [ 59319.7533581] vpanic() at
> netbsd:vpanic+0x178
> Jan  5 14:07:04 ymir /netbsd: [ 59319.7533581] snprintf() at
> netbsd:snprintf
> Jan  5 14:07:04 ymir /netbsd: [ 59319.7533581] fpu_set_default_cw() at
> netbsd:fpu_set_default_cw
> Jan  5 14:07:04 ymir /netbsd: [ 59319.7533581] Xtrap07() at
> netbsd:Xtrap07+0xbd
> Jan  5 14:07:04 ymir /netbsd: [ 59319.7533581] nvmm_ioctl() at
> nvmm:nvmm_ioctl+0xec
> Jan  5 14:07:04 ymir /netbsd: [ 59319.7533581] sys_ioctl() at
> netbsd:sys_ioctl+0x59e
> Jan  5 14:07:04 ymir /netbsd: [ 59319.7533581] syscall() at
> netbsd:syscall+0x299
> Jan  5 14:07:04 ymir /netbsd: [ 59319.7533581] --- syscall (number 54)
> ---
> Jan  5 14:07:04 ymir /netbsd: [ 59319.7533581] 73188eb8199a:
> Jan  5 14:07:04 ymir /netbsd: [ 59319.7533581] cpu0: End traceback...
> Jan  5 14:07:04 ymir /netbsd:
> Jan  5 14:07:04 ymir /netbsd: [ 59319.7649742] dumping to dev 168,2
> (offset=8, size=5225879):
> Jan  5 14:07:04 ymir /netbsd: [ 59319.7649742] dump failed:
> insufficient space (7221248 < 11753276)
> ....
> 
> on
> 
> NetBSD 9.99.33 (GENERIC) #17: Sat Jan  4 18:16:34 GMT 2020
>         sysbuild@ymir:/home/sysbuild/amd64/obj/home/sysbuild/src/sys/a
> rch/amd64/compile/GENERIC
> 
> starting one of my qemu-nvmm virtual machines - Windows 10 32-bit -
> which used to work rather well, but I haven't started it for several
> weeks, so am not sure when the break has happened.

As another data point, I'm able to run two VM images (one DragonFly,
one Ubuntu) with nvmm on an Intel system with NetBSD 9.99.31 (GENERIC)
built Sun Dec 29 16:34:10 EST 2019, a userland from Dec. 14th, and the
qemu-nvmm package from pkgsrc-wip built Dec. 15th.

Thanks for mentioning this. I'm kind of addicted to nvmm and need it
for testing something right now, so I'll hold off updating -current
further at the moment.

Regards,

Dave