If I'm running poudriere on my desktop (i7-5930k) I'll frequently get I/O errors when doing (an unrelated) installkernel to a laptop over wired ethernet. root@planecrash:/home/mmacy/devel/fbg-merge # time make -j12 installkernel -s -------------------------------------------------------------- >>> Installing kernel GENERIC -------------------------------------------------------------- find: /mnt/storage/mmacy/devel/fbg-merge/sys/modules/netgraph/pred1: Input/output error make[2]: "/mnt/storage/mmacy/devel/fbg-merge/sys/conf/kern.pre.mk" line 196: warning: "find /mnt/storage/mmacy/devel/fbg-merge/sys/ -name \*_if.m" returned non-zero status and then later on the install fails with: ===> ispfw/isp_1080 (install) install: radeon_hainan_me_bin.ko.debug: Input/output error --- _kmodinstall --- *** [_kmodinstall] Error code 71 make[6]: stopped in /mnt/storage/mmacy/devel/fbg-merge/sys/modules/drm2/radeonkmsfw/hainan_me 1 error make[6]: stopped in /mnt/storage/mmacy/devel/fbg-merge/sys/modules/drm2/radeonkmsfw/hainan_me --- realinstall_subdir_drm2/radeonkmsfw/hainan_me --- *** [realinstall_subdir_drm2/radeonkmsfw/hainan_me] Error code 2 make[5]: stopped in /mnt/storage/mmacy/devel/fbg-merge/sys/modules/drm2/radeonkmsfw A failure has been detected in another branch of the parallel make make[6]: stopped in /mnt/storage/mmacy/devel/fbg-merge/sys/modules/drm2/radeonkmsfw/hainan_rlc A failure has been detected in another branch of the parallel make At which time I saw the following on the console: Jul 10 18:04:11 planecrash kernel: newnfs: server '10.0.1.20' error: fileid changed. fsid 0:0: expected fileid 0x4, got 0x2. (BROKEN NFS SERVER OR MIDDLEWARE) This problem has existed for at least as long as I've been working on graphics.
Add the "-S" command line option to mountd. Poudriere mounts file systems and this triggers a reload of /etc/exports. Please let us know if this fixes the problem. (If it fixes the problem, I will mark this as a duplicate of the others.)