On Tue, Aug 22, 2017 at 08:17:38AM -0700, David Wolfskill wrote: > On Tue, Aug 22, 2017 at 04:19:58PM +0300, Konstantin Belousov wrote: > > ... > > > > Ok, can you rebuild kernel and libc from scratch ? I.e. remove your > > > > object directories. > > > > > > I think I'll need a working /bin/sh to do that. As noted, I could > > > try the stable/11 /bin/sh; on the other hand, if it's dying in a > > > library, that's not likely to help a whole lot. :-} > > I highly suspect that this is not /bin/sh at all. Backtrace strongly > > suggests that the malloc() has issues, but again I suspect that the > > reason is not an issue in malloc, but its use of TLS. > > > > The amd64 changes were to the TLS base register handling. So you might > > try to boot previous kernel. If this works out without replacing libc > > then it is definitely TLS, but I still do not know what is wrong. > > > > > > > > But yes: once we resolve the "working /bin/sh" issue, clearing > > > /usr/obj & rebuilding is straighforward and shouldn't take too long. > > .... > > OK. Booting from the previous kernel (/boot/kernel.old) allowed /bin/sh > (et al.) to work without segfaults, so after clearing /usr/obj, I > rebuilt r322776 from scratch (yes, userland as well as kernel). > > On reboot, I wtached the serial console, and noted: > > ... > Mounting local filesystems:. > ELF ldconfig path: /lib /usr/lib /usr/lib/compat /usr/local/lib > /usr/local/lib/perl5/5.24/mach/CORE > 32-bit compatibility ldconfig path: /usr/lib32 /usr/lib32/compat > Setting hostname: freebeast.catwhisker.org. > Setting up harvesting: > [UMA],[FS_ATIME],SWI,INTERRUPT,NET_NG,NET_ETHER,NET_TUN,MOUSE,KEYBOARD,ATTACH,CACHED > Feeding entropy: . > Starting Network: lo0 re0. > lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384 > options=600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_pIPV6> > inet6 ::id 298 (sh), uid 0: exited on signal 11 prefixlen 128 1 (core > dumped) > > inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2 > inet 127.0.0.1 netmask 0xff000000 > nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL> > groups: lo > re0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTpICAST> metric 0 id 305 > (sh), uid 0: exited on signal 11 (core dumped) > mtu 1500 > > options=8209b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC,LINKSTATE> > ether 98:90:96:d6:c9:6d > inet 172.16.8.10 netmask 0xffffff00 pid 310 (sh), uid 0: exited on > signal 11 (core dumped) > broadcast 172.16.8.255 > nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL> > media: Ethernet autoselect (none) > status: no re0: link state changed to UP > carrier > Segmentation fault (core dumped) > Startpid 314 (sh), uid 0: exited on signal 11 (core dumped) > ing devd. > Segmentation fault (core dumped) > Segmentation fault (core dumped) > Segmentation fault (core dumped) > pid 319 (sh), uid 0: exited on signal 11 (core dumped) > Segmentation fault (core dumped) > pid 330 (sh), uid 0: exited on signal 11 (core dumped) > Segmentation fault (core dumped)ubt0 on uhub2 > ubt0: <Broadcom Corp BCM43142A0, rev 2.00/1.12, addr 3> on usbus0 > > random: harvesting attach, 8 bytes (4 bits) from ubt0 > pid 339 (sh), uid 0: exited on signal 11 (core dumped) > Segmentation fault (core dumped) > pid 343 (sh), uid 0: exited on signal 11 (core dumped) > Segmentation fault (core dumped)WARNING: attempt to domain_add(bluetooth) > after domainfinalize() > > WARNING: attempt to domain_add(netgraph) after domainfinalize() > add host 127.0.0.1: gateway lo0 fib 0: route already in table > add net default: gateway 172.16.8.1 > add host ::1: gateway lo0 fib 0: route already in table > add net fe80::: gateway ::1 > add net ff02::: gateway ::1 > add net ::ffff:0.0.0.0: gateway ::1 > add net ::0.0.0.0: gateway ::1 > Creating and/or trimming log files. > Starting syslogd. > Starting rpcbind. > NFS access cache time=60 > No core dumps found. > Setting NIS domain: lmdhw.com. > Starting ypbind. > Clearing /tmp (X related). > Starting mountd. > NFSv4 is disabled > Starting nfsd. > Starting statd. > Starting lockd. > Recovering vi editor sessions:. > Starting lpd. > Upda > FreeBSD/amd64 (freebeast.catwhisker.org) (ttyu0) > > login: > [end of console output -- dhw] > > > So ... looks as if we still have at least one issue, and we have a way > to evade the segfaults. > > Bisection time? Or if there's another approach (or even a suggestion > for a revision to try first), I'm up for it. 9And yes, I'll just > be rebuilding the kernel for the rest of this exercise, I think. > That should speed things up significantly.)
No need. It is clearly something with r322762 (more likely) or r322763 (less likely). Give me some time, I either fix it today or revert the commits. _______________________________________________ freebsd-current@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
