On 04.10.2016 20:45, Andrey Korolyov wrote: > On Tue, Oct 4, 2016 at 8:32 PM, Johannes Bauer <dfnsonfsduifb@xxxxxx> wrote: >> On 04.10.2016 18:50, Johannes Bauer wrote: >> >>> Uhh, that sounds painful. So I'm following Ted's advice and building >>> myself a 4.8 as we speak. >> >> Damn bad idea to build on the instable target. Lots of gcc segfaults and >> weird stuff, even without a kernel panic. The system appears to be >> instable as hell. Wonder how it can even run and how much of the root fs >> is already corrupted :-( >> >> Rebuilding 4.8 on a different host. > > Looks like a platform itself is somewhat faulty: [1]. Thanks for the hint, I'll post there as well. The device is less than 4 weeks old, so it's still under full warranty. Maybe it really is the HW and I'll return it. > Also please bear > in mind that standalone memory testers would rather not expose certain > classes of memory failures, I`d suggest to test allocator`s work > against gcc runs on tmpfs, almost same as you did before. Frequency of > crashes due to wrong pointer contents of an fs cache is most probably > a direct outcome from its relative memory footprint. I will and did, but strangely some kernel building on /dev/shm worked really nice. I Ctrl-Ced, rebooted for good measure and rsynced the 4.8.0 on the device. Then, I tried to update-initramfs: nuc [/lib/modules]: update-initramfs -u update-initramfs: Generating /boot/initrd.img-4.4.0-21-generic modinfo: ERROR: could not get modinfo from 'qla3xxx': Invalid argument Segmentation fault Segmentation fault modinfo: ERROR: could not get modinfo from 'mpt3sas': Invalid argument modinfo: ERROR: could not get modinfo from 'pktcdvd': No such file or directory Bus error Bus error Bus error Bus error Bus error Bus error Bus error Bus error Bus error Bus error Bus error Bus error [...] Segmentation fault Segmentation fault Segmentation fault Segmentation fault update-initramfs: failed for /boot/initrd.img-4.4.0-21-generic with 139. update-initramfs causes heavy disk I/O, so really maybe it's something with the disk driver. As of now I really can't get 4.8.0 to even get to a point where it'd be bootable. I'll continue fighting on all fronts and report as soon as I learn more. Thanks for the help, it is very much appreciated. Cheers, Joe -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>