Re: PVH panics

[Jaromír Doleček <jaromir.dolecek%gmail.com@localhost>]

Hi,

these two are not related to PVH/PVHVM as such, but rather recent
xennet(4) changes. I'll take a look tomorrow.

Jaromir

Le lun. 4 mai 2020 à 23:26, Brian Marcotte <marcotte%panix.com@localhost> a écrit :
>
> I've been trying out PVH, but I'm getting a panics in some cases. These
> also happen with PVHVM.
>
> NetBSD is from this morning (May 4).
> dom0 is Linux/Xen 4.11.2+
> CPU is Xeon E5-2660
>
> Thanks for all your work on this!
>
> - Brian
>
> -------------------
> The first one happens just when starting rpcbind:
>
>     panic: kernel diagnostic assertion "IFNET_LOCKED(ifp)" failed: file "/devel/netbsd/current/src/sys/arch/xen/xen/if_xennet_xenbus.c", line 1272
>     cpu1: Begin traceback...
>     vpanic() at netbsd:vpanic+0x178
>     kern_assert() at netbsd:kern_assert+0x48
>     xennet_ioctl() at netbsd:xennet_ioctl+0x6d
>     if_mcast_op() at netbsd:if_mcast_op+0x4b
>     in6_addmulti() at netbsd:in6_addmulti+0x153
>     in6_joingroup() at netbsd:in6_joingroup+0x45
>     ip6_ctloutput() at netbsd:ip6_ctloutput+0x1748
>     udp6_ctloutput() at netbsd:udp6_ctloutput+0xa2
>     udp6_ctloutput_wrapper() at netbsd:udp6_ctloutput_wrapper+0x2c
>     sosetopt() at netbsd:sosetopt+0x72
>     sys_setsockopt() at netbsd:sys_setsockopt+0x8e
>     syscall() at netbsd:syscall+0x299
>     --- syscall (number 105) ---
>     74e473921a9a:
>     cpu1: End traceback...
>     fatal breakpoint trap in supervisor mode
>     trap type 1 code 0 rip 0xffffffff802219ed cs 0x8 rflags 0x202 cr2 0x74e473921a90 ilevel 0x4 rsp 0xffffc1004aabdb30
>     curlwp 0xffffbb853ca90100 pid 1522.1522 lowest kstack 0xffffc1004aaba2c0
>
>
> This one happens when an old 32-bit version of perl loads some modules:
>
>     panic: kernel diagnostic assertion "M_LEADINGSPACE(m) >= (m->m_pkthdr.len - m->m_len)" failed: file "/devel/netbsd/current/src/sys/kern/uipc_mbuf.c", line 1684
>     cpu0: Begin traceback...
>     vpanic() at netbsd:vpanic+0x178
>     kern_assert() at netbsd:kern_assert+0x48
>     m_defrag() at netbsd:m_defrag+0x408
>     xennet_start() at netbsd:xennet_start+0xc7
>     if_transmit() at netbsd:if_transmit+0x120
>     ether_output() at netbsd:ether_output+0x296
>     ip_output() at netbsd:ip_output+0x1375
>     tcp_output() at netbsd:tcp_output+0x199d
>     tcp_send_wrapper() at netbsd:tcp_send_wrapper+0xa6
>     sosend() at netbsd:sosend+0x80a
>     soo_write() at netbsd:soo_write+0x42
>     dofilewrite() at netbsd:dofilewrite+0x93
>     sys_write() at netbsd:sys_write+0x49
>     netbsd32_write() at netbsd:netbsd32_write+0x31
>     netbsd32_syscall() at netbsd:netbsd32_syscall+-0x1f2c5e
>     cpu0: End traceback...
>     fatal breakpoint trap in supervisor mode
>     trap type 1 code 0 rip 0xffffffff802219ed cs 0x8 rflags 0x202 cr2 0xf8b75484 ilevel 0x8 rsp 0xffffc1004b9327c0
>     curlwp 0xffffbb8548442700 pid 2754.2754 lowest kstack 0xffffc1004b92f2c0
>
>