Date: Thu, 18 Apr 2013 07:37:37 -0600 From: Warner Losh <imp@bsdimp.com> To: Andrew Turner <andrew@fubar.geek.nz> Cc: "freebsd-arm@FreeBSD.org" <freebsd-arm@freebsd.org> Subject: Re: __rw_wlock_hard panic on 1st malloc Message-ID: <27ABB7ED-22D6-4C42-BAF3-1373E830FD9E@bsdimp.com> In-Reply-To: <20130418180818.1d036620@bender> References: <DB4E4AA0-91D8-4253-8044-9C33B60E1A3A@gmail.com> <8DE83B01-4508-41C5-B2BD-95A72D0AD963@bsdimp.com> <BD1AE699-31B2-4F13-8222-BEB90EE0E57E@gmail.com> <B94DB19B-7940-4376-B38B-369FD0E45282@bsdimp.com> <92C60946-8FFB-46A1-9400-9E0F7B11FC23@gmail.com> <9A3C042F-3765-4791-AB51-63EA82488743@bsdimp.com> <20130418113609.5880e469@bender> <0E720F47-E84A-4CC8-8A56-1031AB6DB65A@bsdimp.com> <20130418180818.1d036620@bender>
next in thread | previous in thread | raw e-mail | index | archive | help
On Apr 18, 2013, at 2:08 AM, Andrew Turner wrote: > On Wed, 17 Apr 2013 22:36:29 -0600 > Warner Losh <imp@bsdimp.com> wrote: > >> >> On Apr 17, 2013, at 7:36 PM, Andrew Turner wrote: >> >>> On Wed, 17 Apr 2013 09:37:26 -0600 >>> Warner Losh <imp@bsdimp.com> wrote: >>> >>>> I don't think it is, at least not with clang compiled code. Ian was >>>> saying on IRC that he saw this and went back to gcc and life was >>>> good. >>> >>> I suspect it is an issue with the newer version of clang imported >>> recently. I have tested with an old version of clang and an updated >>> kernel and had no issues booting. >> >> If I take WITNESS out of the kernel, I have no issues either. Not >> sure what WITNESS' problem is... > > I've tried with an updated clang on a PandaBoard with WITNESS enabled. > The only issue I'm hitting is vm_thread_new fails, but this is after > FreeBSD enters userland which, from you other emails, appears to be > further than you are getting. > > I have set unmapped_buf_allowed = 0 in sys/arm/arm/pmap-v6.c to work > around the above stack issue. I don't know if this will fix the issue > or not but you can try it to see. I'll give it a try. Does stack traceback work on your PandaBoard? Warner
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?27ABB7ED-22D6-4C42-BAF3-1373E830FD9E>