Date: Mon, 16 Mar 2015 12:52:39 -0600 From: Ian Lepore <ian@freebsd.org> To: Shawn Webb <shawn.webb@hardenedbsd.org> Cc: "freebsd-current@freebsd.org" <freebsd-current@freebsd.org> Subject: Re: sbuf-related panic Message-ID: <1426531959.95554.11.camel@freebsd.org> In-Reply-To: <1426529019.4766.1.camel@hardenedbsd.org> References: <1426529019.4766.1.camel@hardenedbsd.org>
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On Mon, 2015-03-16 at 14:03 -0400, Shawn Webb wrote: > On amd64, doing a Poudriere run. On r280133: > > (kgdb) bt > #0 doadump (textdump=Unhandled dwarf expression opcode 0x93 > ) at pcpu.h:219 > #1 0xffffffff809726a5 in kern_reboot (howto=Unhandled dwarf expression opcode 0x93 > ) at /usr/src/sys/kern/kern_shutdown.c:448 > #2 0xffffffff80972c98 in vpanic (fmt=<value optimized out>, ap=<value optimized out>) at /usr/src/sys/kern/kern_shutdown.c:747 > #3 0xffffffff80972ac2 in kassert_panic (fmt=<value optimized out>) at /usr/src/sys/kern/kern_shutdown.c:635 > #4 0xffffffff809bd5bd in sbuf_delete (s=0xfffffe085d468750) at /usr/src/sys/kern/subr_sbuf.c:103 > #5 0xffffffff809669dd in sysctl_kern_proc_args (oidp=<value optimized out>, arg1=<value optimized out>, arg2=<value optimized out>, req=0xfffffe085d468868) at /usr/src/sys/kern/kern_proc.c:1858 > #6 0xffffffff8097e7b4 in sysctl_root_handler_locked (oid=0xffffffff81533738, arg1=0xfffffe085d46893c, arg2=1, req=0xfffffe085d468868) at /usr/src/sys/kern/kern_sysctl.c:183 > #7 0xffffffff8097e038 in sysctl_root (arg1=<value optimized out>, arg2=<value optimized out>) at /usr/src/sys/kern/kern_sysctl.c:1660 > #8 0xffffffff8097e5b2 in userland_sysctl (td=<value optimized out>, name=0xfffffe085d468930, namelen=<value optimized out>, old=<value optimized out>, oldlenp=<value optimized out>, inkernel=<value optimized out>, > new=<value optimized out>, newlen=<value optimized out>, retval=<value optimized out>, flags=0) at /usr/src/sys/kern/kern_sysctl.c:1764 > #9 0xffffffff8097e3e4 in sys___sysctl (td=0xfffff802521324b0, uap=0xfffffe085d468a40) at /usr/src/sys/kern/kern_sysctl.c:1690 > #10 0xffffffff80da1bca in amd64_syscall (td=0xfffff802521324b0, traced=0) at subr_syscall.c:133 > #11 0xffffffff80d7f3cb in Xfast_syscall () at /usr/src/sys/amd64/amd64/exception.S:395 > #12 0x000002759e502b7a in ?? () That one should be fixed in r280149, sorry about that. For some reason I never hit the triggering condition in testing, but it seems that just about everyone else in the world did. :/ There are a couple locking-related fixes still needed which might trigger a witness warning, they should be fixed soon as well. -- Ian
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