sys.netinet.so_reuseport_lb_test.basic_ipv6 panics kernel after r361228 https://ci.freebsd.org/job/FreeBSD-head-amd64-test/15244/console https://ci.freebsd.org/job/FreeBSD-head-i386-test/9341/console libexec/tftpd/functional:abspath_v6 -> Kernel page fault with the following non-sleepable locks held: exclusive sleep mutex pcbinfohash (pcbinfohash) r = 0 (0xb6f1028) locked @ /usr/src/sys/netinet6/udp6_usrreq.c:859 exclusive rw udpinp (udpinp) r = 0 (0x26da88b4) locked @ /usr/src/sys/netinet6/udp6_usrreq.c:755 stack backtrace: #0 0x102cbf1 at witness_debugger+0x61 #1 0x102d938 at witness_warn+0x348 #2 0x14014ba at trap_pfault+0x5a #3 0x1400b60 at trap+0x3a0 #4 0xffc0319f at carp_list+0xda2839a7 #5 0x28 at ??+0 Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0x1 fault code = supervisor read data, page not present instruction pointer = 0x20:0x1139f6f stack pointer = 0x28:0x2699b7b4 frame pointer = 0x28:0x2699b7e4 code segment = base rx0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 3444 (functional) trap number = 12 panic: page fault cpuid = 0 time = 1589848359 KDB: stack backtrace: db_trace_self_wrapper(69,1c76a800,144b52b,1c76a800,2699b5cc,...) at db_trace_self_wrapper+0x2a/frame 0x2699b598 kdb_backtrace(2,2699b774,2699b774,c,0,...) at kdb_backtrace+0x2e/frame 0x2699b5f8 vpanic(144b52b,2699b634,2699b634,2699b668,1401457,...) at vpanic+0x11f/frame 0x2699b614 panic(144b52b,14da142,200246,c,1,...) at panic+0x14/frame 0x2699b628 trap_fatal(1cb04688,1c769274,26dd8000,2699b6c0,1da381c,...) at trap_fatal+0x357/frame 0x2699b668 trap_pfault(1,0,0) at trap_pfault+0x72/frame 0x2699b69c trap(2699b774,8,28,28,2710,...) at trap+0x3a0/frame 0x2699b768 calltrap() at 0xffc0319f/frame 0x2699b768 --- trap 0xc, eip = 0x1139f6f, esp = 0x2699b7b4, ebp = 0x2699b7e4 --- in_pcb_lport_dest(26da88a4,0,2699b84e,0,0,1c6ad500,1) at in_pcb_lport_dest+0x14f/frame 0x2699b7e4 in_pcb_lport(26da88a4,0,2699b84e,1c6ad500,1) at in_pcb_lport+0x68/frame 0x2699b82c in6_pcbsetport(2699b8d0,26da88a4,1c6ad500) at in6_pcbsetport+0x89/frame 0x2699b85c udp6_send(254c1220,0,1ca60900,bbd7e60,0,272b1e00) at udp6_send+0x8e9/frame 0x2699b984 sosend_dgram(254c1220,bbd7e60,2699ba18,0,0,0,272b1e00) at sosend_dgram+0x2b6/frame 0x2699b9bc sosend(254c1220,bbd7e60,2699ba18,0,0,0,272b1e00) at sosend+0x50/frame 0x2699b9ec kern_sendit(272b1e00,3,2699baa0,0,0,0) at kern_sendit+0x1cb/frame 0x2699ba50 sendit(2699baa0,0) at sendit+0x19b/frame 0x2699ba88 sys_sendto(272b1e00,272b2090,2699bb9c,272b1e00,272b2088,...) at sys_sendto+0x50/frame 0x2699bac8 syscall(2699bba8,3b,3b,3b,ffbfd338,...) at syscall+0x60c/frame 0x2699bb9c Xint0x80_syscall() at 0xffc033f9/frame 0x2699bb9c --- syscall (93, FreeBSD ELF32, sys_select), eip = 0xffc01268, esp = 0xffc07fe8, ebp = 0xffbfe91c --- KDB: enter: panic [ thread pid 3444 tid 100153 ] Stopped at kdb_enter+0x35: movl $0,kdb_why db:0:kdb.enter.panic> show pcpu cpuid = 0 dynamic pcpu = 0x8078c0 curthread = 0x272b1e00: pid 3444 tid 100153 critnest 1 "functional" curpcb = 0x2699bc00 fpcurthread = 0x272b1e00: pid 3444 "functional" idlethread = 0xb7dce00: tid 100003 "idle: cpu0" APIC ID = 0 currentldt = 0x50 trampstk = 0xffc07ff0 kesp0 = 0x2699bbf0 common_tssp = 0xffc01130 tlb gen = 16337 curvnet = 0xb674b40 spin locks held: db:0:kdb.enter.panic>
karels: can you help check this? Thanks!
A commit references this bug: Author: lwhsu Date: Tue May 19 02:07:09 UTC 2020 New revision: 361237 URL: https://svnweb.freebsd.org/changeset/base/361237 Log: Temporarily disable test case causes kernel panic in CI: - sys.netinet.so_reuseport_lb_test.basic_ipv6 PR: 246560 Sponsored by: The FreeBSD Foundation Changes: head/tests/sys/netinet/so_reuseport_lb_test.c
Sorry, didn't see r361231, I'll check if it fixes the issue.
Fixed in r361231.
A commit references this bug: Author: lwhsu Date: Tue May 19 07:16:10 UTC 2020 New revision: 361241 URL: https://svnweb.freebsd.org/changeset/base/361241 Log: Revert r361237, it's fixed by r361231 PR: 246560 Sponsored by: The FreeBSD Foundation Changes: head/tests/sys/netinet/so_reuseport_lb_test.c