Date: Sat, 17 Dec 2016 02:32:59 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 214923] kqueue hangs with busy loop Message-ID: <bug-214923-8-x47NgCqR5i@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/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D214923 --- Comment #14 from yjh0502@gmail.com --- (In reply to Konstantin Belousov from comment #13) Sorry for the confusion. Here's stacks for two problematic threads. db> Tracing pid 764 tid 100622 td 0xfffff80007ccda00 kdb_enter() at kdb_enter+0x3b/frame 0xfffffe004f1757e0 vpanic() at vpanic+0x19f/frame 0xfffffe004f175860 panic() at panic+0x43/frame 0xfffffe004f1758c0 knote_drop() at knote_drop+0x28a/frame 0xfffffe004f175900 knote_fdclose() at knote_fdclose+0xd3/frame 0xfffffe004f175950 closefp() at closefp+0x65/frame 0xfffffe004f1759a0 amd64_syscall() at amd64_syscall+0x2f6/frame 0xfffffe004f175ab0 Xfast_syscall() at Xfast_syscall+0xfb/frame 0xfffffe004f175ab0 --- syscall (6, FreeBSD ELF64, sys_close), rip =3D 0x80104a7ca, rsp =3D 0x7fffdf9f9b58, rbp =3D 0x7fffdf9f9b70 --- db> trace 1118 Tracing pid 1118 tid 100634 td 0xfffff8000c23b500 cpustop_handler() at cpustop_handler+0x28/frame 0xffffffff81d78d30 ipi_nmi_handler() at ipi_nmi_handler+0x4a/frame 0xffffffff81d78d50 trap() at trap+0x3a/frame 0xffffffff81d78f60 nmi_calltrap() at nmi_calltrap+0x8/frame 0xffffffff81d78f60 --- trap 0x13, rip =3D 0xffffffff80a90104, rsp =3D 0xfffffe004f1ac6f0, rbp = =3D 0xfffffe004f1ac710 --- lock_delay() at lock_delay+0x54/frame 0xfffffe004f1ac710 __mtx_lock_sleep() at __mtx_lock_sleep+0x1b8/frame 0xfffffe004f1ac790 __mtx_lock_flags() at __mtx_lock_flags+0x10d/frame 0xfffffe004f1ac7e0 knote() at knote+0x85/frame 0xfffffe004f1ac840 VOP_READDIR_APV() at VOP_READDIR_APV+0x150/frame 0xfffffe004f1ac870 kern_getdirentries() at kern_getdirentries+0x224/frame 0xfffffe004f1ac970 sys_getdirentries() at sys_getdirentries+0x28/frame 0xfffffe004f1ac9a0 amd64_syscall() at amd64_syscall+0x2f6/frame 0xfffffe004f1acab0 Xfast_syscall() at Xfast_syscall+0xfb/frame 0xfffffe004f1acab0 --- syscall (196, FreeBSD ELF64, sys_getdirentries), rip =3D 0x80096c69a, r= sp =3D 0x7fffffffe778, rbp =3D 0x7fffffffe7b0 --- --=20 You are receiving this mail because: You are the assignee for the bug.=
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