Date: Sun, 06 Mar 2016 08:28:56 -0600 From: Larry Rosenman <ler@lerctr.org> To: Dimitry Andric <dim@freebsd.org> Cc: FreeBSD CURRENT <freebsd-current@freebsd.org> Subject: Re: HEADS UP: clang/llvm/lldb/compiler-rt 3.8.0 imported Message-ID: <fc2452c629b68f8ef78dfe553cd2852e@thebighonker.lerctr.org> In-Reply-To: <20160306142032.GA4063@trivet.lerctr.org> References: <06A7CAA8-1F51-4A86-97D1-F0DA938C2BC4@FreeBSD.org> <0CAC6D2A-D16B-4BD5-90F0-3A1E2F1FC375@FreeBSD.org> <613F619A-DE9E-4030-BF11-CE30465B9538@FreeBSD.org> <da31cf727bd0e074addc5e8a247ec784@thebighonker.lerctr.org> <232E493E-9B22-4D1E-A1C8-619B573C56E1@FreeBSD.org> <20160306142032.GA4063@trivet.lerctr.org>
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On 2016-03-06 08:20, Larry Rosenman wrote: > On Sun, Mar 06, 2016 at 03:15:10PM +0100, Dimitry Andric wrote: >> On 06 Mar 2016, at 06:20, Larry Rosenman <ler@lerctr.org> wrote: >> > >> > On 2016-03-05 18:46, Dimitry Andric wrote: >> >> On 06 Mar 2016, at 00:30, Dimitry Andric <dim@FreeBSD.org> wrote: >> >>> On 05 Mar 2016, at 22:32, Dimitry Andric <dim@FreeBSD.org> wrote: >> >>>> I imported the (tentative) 3.8.0 release of clang, llvm, lldb and >> >>>> compiler-rt into head, in r296417. The upstream release is going to be >> >>>> very soon now, but I do not expect any changes anymore. >> >>>> This was tested with make universe, and a few exp-runs, but there is >> >>>> always a chance that you might run into something unexpected, either >> >>>> with the base system or ports. In such cases, please file bugs, and >> >>>> make sure you note somewhere in the description that it is related to >> >>>> this import. >> >>> Please hold off upgrading for now, if you are on amd64, and loading the >> >>> aesni.ko module. It appears that loading this module can cause the >> >>> kernel ELF linker to panic, but it is not yet clear why. This is being >> >>> tracked in PR207729 [1]. >> >> It should be safe again after r296419. Thanks to Kostik Belousov for >> >> the quick fix. (Clang 3.8.0 generates a different type for unwind >> >> sections on amd64, and this was unexpected in the kernel linker.) >> >> -Dimitry >> >> [1] https://svnweb.freebsd.org/changeset/base/296419 >> > I'm getting a crash at startup (mi_startup) with a clang 3.8.0 kernel. >> > >> > Picture at: >> > http://www.lerctr.org/~ler/FreeBSD/20160305_225532.jpg >> >> It's pretty hard to make out, but it looks like it is panic'ing in >> link_elf_reloc_local(). That should have been fixed with r296419, but >> maybe there is yet another edge case that wasn't fixed. Do you have a >> crash dump and/or a backtrace? Which modules are you preloading? >> >> -Dimitry >> > > loader,conf: > > kern.msgbuf_clear="1" > kern.geom.label.disk_ident.enable="0" > kern.geom.label.gptid.enable="0" > zfs_load="YES" > ichsmb_load="YES" > hwpmc_load="YES" > aesni_load="YES" > cryptodev_load="YES" > dtraceall_load="YES" > cpuctl_load="YES" > cuse_load="YES" > coretemp_load="YES" > #hw.usb.quirk.0="0x0bda 0x0129 0x3960 0x3960 > UQ_MSC_FORCE_WIRE_BBB,UQ_MSC_FORCE_PROTO_SCSI" > #hw.usb.umass.debug="-1" > > I'll see if I can get a better pic with a backtrace. This crash is > WAY early, so no dump :( > > > > acpi_dsdt_load="YES" # DSDT Overriding > acpi_dsdt_name="/boot/dsdt.aml" > #hw.psm.synaptics_support="1" new pic: http://www.lerctr.org/~ler/FreeBSD/20160306_082426.jpg -- Larry Rosenman http://www.lerctr.org/~ler Phone: +1 214-642-9640 E-Mail: ler@lerctr.org US Mail: 7011 W Parmer Ln, Apt 1115, Austin, TX 78729-6961
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