Date: Fri, 16 Dec 2016 18:01:07 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 214923] kqueue hangs with busy loop Message-ID: <bug-214923-8-5UWLA8e6rp@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-214923-8@https.bugs.freebsd.org/bugzilla/> References: <bug-214923-8@https.bugs.freebsd.org/bugzilla/>
next in thread | previous in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D214923 --- Comment #8 from yjh0502@gmail.com --- I got a coredump and backtrace: root@foo:/usr/obj/usr/src/sys/DEBUG # kgdb kernel.debug /var/crash/vmcore.0 GNU gdb 6.1.1 [FreeBSD] Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain condition= s. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "amd64-marcel-freebsd"... Unread portion of the kernel message buffer: panic: Bad link elm 0xfffff800158d0780 next->prev !=3D elm cpuid =3D 1 KDB: stack backtrace: #0 0xffffffff80a80947 at kdb_backtrace+0x67 #1 0xffffffff80a3fb52 at vpanic+0x182 #2 0xffffffff80a3fbd3 at panic+0x43 #3 0xffffffff809f9d1a at knote_drop+0x28a #4 0xffffffff809f9df3 at knote_fdclose+0xd3 #5 0xffffffff809eda25 at closefp+0x65 #6 0xffffffff80ea4426 at amd64_syscall+0x2f6 #7 0xffffffff80e8469b at Xfast_syscall+0xfb Uptime: 4m58s Dumping 227 out of 988 MB: (CTRL-C to abort) ..8%..15%..22%..36%..43%..57%..64%..71%..85%..92% Reading symbols from /boot/kernel/zfs.ko...Reading symbols from /usr/lib/debug//boot/kernel/zfs.ko.debug...done. done. Loaded symbols for /boot/kernel/zfs.ko Reading symbols from /boot/kernel/opensolaris.ko...Reading symbols from /usr/lib/debug//boot/kernel/opensolaris.ko.debug...done. done. Loaded symbols for /boot/kernel/opensolaris.ko Reading symbols from /boot/kernel/uhid.ko...Reading symbols from /usr/lib/debug//boot/kernel/uhid.ko.debug...done. done. Loaded symbols for /boot/kernel/uhid.ko #0 doadump (textdump=3D<value optimized out>) at pcpu.h:221 221 __asm("movq %%gs:%1,%0" : "=3Dr" (td) (kgdb) bt #0 doadump (textdump=3D<value optimized out>) at pcpu.h:221 #1 0xffffffff80a3f5d0 in kern_reboot (howto=3D<value optimized out>) at /usr/src/sys/kern/kern_shutdown.c:366 #2 0xffffffff80a3fb8b in vpanic (fmt=3D<value optimized out>, ap=3D<value optimized out>) at /usr/src/sys/kern/kern_shutdown.c:759 #3 0xffffffff80a3fbd3 in panic (fmt=3D0x0) at /usr/src/sys/kern/kern_shutdown.c:690 #4 0xffffffff809f9d1a in knote_drop (kn=3D<value optimized out>, td=3D<val= ue optimized out>) at /usr/src/sys/kern/kern_event.c:2461 #5 0xffffffff809f9df3 in knote_fdclose (td=3D0xfffff80026a38a00, fd=3D232)= at /usr/src/sys/kern/kern_event.c:2370 #6 0xffffffff809eda25 in closefp (fdp=3D0xfffff800079a8450, fd=3D232, fp=3D0xfffff80003fe1460, td=3D0xfffff80026a38a00, holdleaders=3D1) at /usr/src/sys/kern/kern_descrip.c:1180 #7 0xffffffff80ea4426 in amd64_syscall (td=3D0xfffff80026a38a00, traced=3D= <value optimized out>) at subr_syscall.c:135 #8 0xffffffff80e8469b in Xfast_syscall () at /usr/src/sys/amd64/amd64/exception.S:396 #9 0x000000080104a7ca in ?? () Previous frame inner to this frame (corrupt stack?) Current language: auto; currently minimal (kgdb) I compiled kernel from git repo, releng/11.0 branch (b416700da72fd8eab0a75d60f0634e254cbb9347) --=20 You are receiving this mail because: You are the assignee for the bug.=
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-214923-8-5UWLA8e6rp>