From owner-freebsd-current@freebsd.org Thu Jul 30 19:11:25 2015 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 64A449ABCB3 for ; Thu, 30 Jul 2015 19:11:25 +0000 (UTC) (envelope-from nparhar@gmail.com) Received: from mail-la0-x22a.google.com (mail-la0-x22a.google.com [IPv6:2a00:1450:4010:c03::22a]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id E53AF1ACE for ; Thu, 30 Jul 2015 19:11:24 +0000 (UTC) (envelope-from nparhar@gmail.com) Received: by laah7 with SMTP id h7so30854629laa.0 for ; Thu, 30 Jul 2015 12:11:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=IlM6pFPWJjaBoaihR9cu2BeNHKwhJjlC3bjSnx/DYBg=; b=hkQanH/ADSDfT2XdMwwYPtBAyFmbVTGAYACJKRiXZssWoSdj2W9vYnqz2KUvLGHy5S qaG92G6VAp642e4QVHwDSA4XyXDPl362b64WGRiCvciQVEzPK2lf9HPl7xOeFzYAHmvp O3zVZgkJY3G7dPhIyWfdKsvoo71gZCN2MNjfCCNtFSutcjCs5QLYKWzmOel56db/s878 lRPVN53ZIGGaNL+KO4e1vL6KgGTVMZh1wc59p34t54/vAAsROUyVsFhYhC/H08U1oJS5 8qQbyIQNACXiZ01liAqrf91N7LTlTVGJ239SlUICdvRsWcGvWNtjBKG4KCOSUJxLi16b wdYA== MIME-Version: 1.0 X-Received: by 10.152.20.138 with SMTP id n10mr45873065lae.115.1438283483000; Thu, 30 Jul 2015 12:11:23 -0700 (PDT) Received: by 10.25.60.69 with HTTP; Thu, 30 Jul 2015 12:11:22 -0700 (PDT) Date: Thu, 30 Jul 2015 12:11:22 -0700 Message-ID: Subject: panic in sysctl code in recent head From: Navdeep Parhar To: Current Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.20 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 30 Jul 2015 19:11:25 -0000 A kernel built from head as of today panics with this on loading a module. Does anyone else see this too? panic: sleepq_add: td 0xfffff8000e7f89e0 to sleep on wchan 0xffffffff824056c8 with sleeping prohibited cpuid = 3 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2e/frame 0xfffffe02383ebe40 kdb_backtrace() at kdb_backtrace+0x58/frame 0xfffffe02383ebf10 vpanic() at vpanic+0x25e/frame 0xfffffe02383ebfe0 kassert_panic() at kassert_panic+0xcc/frame 0xfffffe02383ec070 sleepq_add() at sleepq_add+0x1ed/frame 0xfffffe02383ec0e0 _sx_xlock_hard() at _sx_xlock_hard+0xa88/frame 0xfffffe02383ec320 __sx_xlock() at __sx_xlock+0x77/frame 0xfffffe02383ec380 _sx_xlock() at _sx_xlock+0x170/frame 0xfffffe02383ec3f0 _rm_rlock_hard() at _rm_rlock_hard+0x323/frame 0xfffffe02383ec490 _rm_rlock() at _rm_rlock+0x173/frame 0xfffffe02383ec4e0 _rm_rlock_debug() at _rm_rlock_debug+0x284/frame 0xfffffe02383ec560 sysctl_root_handler_locked() at sysctl_root_handler_locked+0x148/frame 0xfffffe02383ec5b0 sysctl_root() at sysctl_root+0x38d/frame 0xfffffe02383ec660 userland_sysctl() at userland_sysctl+0x315/frame 0xfffffe02383ec7a0 sys___sysctl() at sys___sysctl+0xfc/frame 0xfffffe02383ec8a0 syscallenter() at syscallenter+0x521/frame 0xfffffe02383ec980 amd64_syscall() at amd64_syscall+0x2a/frame 0xfffffe02383ecab0 Xfast_syscall() at Xfast_syscall+0xfb/frame 0xfffffe02383ecab0 --- syscall (202, FreeBSD ELF64, sys___sysctl), rip = 0x8011b02ba, rsp = 0x7fffffffda28, rbp = 0x7fffffffda60 --- KDB: enter: panic