kernel warning at kern/src/event.c:374, from core 1: [kernel] Null ev_q - kernel code should check before sending! Stack Backtrace on Core 1: #01 [<0xffffffffc200a38c>] in backtrace at src/kdebug.c:229 #02 [<0xffffffffc2009bb4>] in _warn at src/init.c:322 #03 [<0xffffffffc2007732>] in send_event at src/event.c:374 #04 [<0xffffffffc2056b45>] in sys_send_event at src/syscall.c:1439 #05 [<0xffffffffc205a319>] in syscall at src/syscall.c:2496 #06 [<0xffffffffc205a4f8>] in run_local_syscall at src/syscall.c:2531 #07 [<0xffffffffc205aa39>] in prep_syscalls at src/syscall.c:2551 #08 [<0xffffffffc20ac1e2>] in sysenter_callwrapper at arch/x86/trap.c:854 kernel panic at kern/drivers/dev/mnt.c:1120, from core 3: rpc tags Stack Backtrace on Core 3: #01 [<0xffffffffc200a38c>] in backtrace at src/kdebug.c:229 #02 [<0xffffffffc2009b25>] in _panic at src/init.c:267 #03 [<0xffffffffc207efca>] in mntralloc at drivers/dev/mnt.c:1120 #04 [<0xffffffffc207f073>] in mntflushalloc at drivers/dev/mnt.c:1047 #05 [<0xffffffffc207f510>] in mountio at drivers/dev/mnt.c:845 #06 [<0xffffffffc207f605>] in mountrpc at drivers/dev/mnt.c:778 #07 [<0xffffffffc208043b>] in mntwalk at drivers/dev/mnt.c:470 #08 [<0xffffffffc2032d1d>] in walk at src/ns/chan.c:817 #09 [<0xffffffffc2033429>] in __namec_from at src/ns/chan.c:1139 #10 [<0xffffffffc2034013>] in namec at src/ns/chan.c:1517 #11 [<0xffffffffc20415a6>] in sysopenat at src/ns/sysfile.c:592 #12 [<0xffffffffc20594ff>] in sys_openat at src/syscall.c:1742 #13 [<0xffffffffc205a319>] in syscall at src/syscall.c:2496 #14 [<0xffffffffc205a4f8>] in run_local_syscall at src/syscall.c:2531 #15 [<0xffffffffc205aa39>] in prep_syscalls at src/syscall.c:2551 #16 [<0xffffffffc20ac1e2>] in sysenter_callwrapper at arch/x86/trap.c:854