On Sun, Apr 03, 2022 at 09:20:12PM +0000, Mikolaj Kucharski wrote: > >Synopsis: random panic > >Category: kernel > >Environment: > System : OpenBSD 7.1 > Details : OpenBSD 7.1 (GENERIC.MP) #457: Sun Apr 3 00:33:57 MDT > 2022 > > [email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP > > Architecture: OpenBSD.amd64 > Machine : amd64 > >Description: > This machine has random panics over the course of few months, > but it doesn't have monitor connected, so I was so far unable to get > a screenshot of glass console when panics happens. Today I managed > to get it first time. I'm not sure are the previous panic same as > this one captured today. > > >How-To-Repeat: > It usually happens about the time when I run sysupgrade(8). > Please note that iwn(4) is not used for egress, but only for passive > packet capturing via tcpdump(8). Egress is done via re(4). Staring > sysupgrade(8) doesn't trigger any bulk wireless traffic, as re(4) > in the paniced machine goes to the internet via wired Ethernet. > Based on backtrace, somehow iwn(4) is related to the panic. I do > ssh to paniced machine via ssh over wifi, so sysupgrade(8) console > output does generate wireless traffic which is then captured > by tcpdump(8) on iwn(4) on paniced machine. >
Retyped by hand, please watch out of typos: uvm_fault(0xffffffff823e6458, 0x15, 0, 2) -> e fatal page fault in supervisor mode trap type 6 code 2 rip ffffffff81659979 cs 8 rflags 10202 cr2 15 cpl d rsp ffff800022326a80 gsbase 0xffffffff822b5ff0 kgsbase 0x0 panic: trap type 6, code=2, pc=ffffffff81659979 Starting stack trace... panic(ffffffff81f12abc) at panic+0x12c kerntrap(ffff8000223269d0) at kerntrap+0x114 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b timeout_del(ffff80000157b00) at timeout_del+0x39 ieee80211_ba_del(ffff80000157a00) at ieee80211_ba_del+0x4b ieee80211_free_node(ffff8000053a048,ffff80000157a000) at ieee80211_free_node+0x80 ieee80211_clean_nodes(ffff80000053a048,0) at ieee80211_clean_nodes+0x23c ieee80211_find_rxnode(ffff80000053a048,fffffd8077f4400c) at ieee80211_find_rxnode+0x1d4 iwn_rx_done(ffff80000053a000,fffffd8077f44000,ffff800000582ca8,ffff800022326c90) at iwn_rx_done+0x2dc iwn_notif_intr(ffff80000053a000) at iwn_notif_intr+0x428 iwn_intr(ffff80000053a000) at iwn_intr+0x348 intr_handler(ffff800022326dc0, ffff800000538d00) at intr_handler+0x6e Xintr_ioapic_edge22_untramp() at Xintr_ioapic_edge22_untramp+0x18f acpicpu_idle() at acpicpu_idle+0x203 sched_idle(ffffffff822b5ff0) at sched_idle+0x280 end trace frame: 0x0, count: 242 End of stack trace. -- Regards, Mikolaj
