Date: Sun, 06 Mar 2016 08:54:13 -0600 From: Larry Rosenman <ler@lerctr.org> To: Nikolai Lifanov <lifanov@mail.lifanov.com> Cc: Freebsd current <freebsd-current@freebsd.org> Subject: Re: HEADS UP: clang/llvm/lldb/compiler-rt 3.8.0 imported Message-ID: <eab07a6968ec47d43df8120cdc3c2650@thebighonker.lerctr.org> In-Reply-To: <cd3726c2c897fa628a9b487d90b94881@thebighonker.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> <fc2452c629b68f8ef78dfe553cd2852e@thebighonker.lerctr.org> <7c0070cf1cf21e8a66b0e5c4567aa0c7@mail.lifanov.com> <cd3726c2c897fa628a9b487d90b94881@thebighonker.lerctr.org>
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On 2016-03-06 08:49, Larry Rosenman wrote: > On 2016-03-06 08:40, Nikolai Lifanov wrote: >> On 2016-03-06 09:28, Larry Rosenman wrote: >>> 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 >> >> I loaded everything in this list other than acpi_dsdt override. >> >> - Nikolai Lifanov > > still breaks for me without the dsdt override :( +list -- 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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