Garbled console output on Pi3

[bob prohaska]

Just for sake of curiosity I tried Peter Holm's stress2 test suite, which
compiles without issue on the RPi3 when svn'd from his website.

After running for not quite three hours the following appeared on
the console:

Mar  7 18:19:25 www kernel: onc-mpdr etshern2t  psicdh ed1_6y7i4e5l dt
Mar  7 18:19:25 www kernel: resenctm ds <118>Mar  7 18:19:25 www kernel: trcimedd  tthor 2u spei dn on1-6p7r4e2  upsied  no1n6h7r425  p-tiprdri eesd1e 6nt7to  sucshee dn_oyni-eplrde
5- pt7r4e5sr ietenrdti  tos cuhseed _nyoine-lpdr
Mar  7 18:19:25 www kernel: senctm d stchehrde2 d t_poyiide  l1d6
Mar  7 18:19:25 www kernel: cmd thr2 pid 16745 tried to<118>Mar  7 18:19:25 www kernel: ldc
Mar  7 18:19:25 www kernel: 16c7m4d5  ttrhire2d  ptiod  u1s6e7 4n5o nt-rpireeds etnot  ussec hneodn_-ypireelsde
Mar  7 18:19:25 www kernel: id c1m6d7 45t htrr2i epdi dt o 1u6s7e4 5n otnr-iperde steon tu ses cnhoend-_pyrieesledn
Mar  7 18:19:35 www last message repeated 308 times
Mar  7 18:19:35 www kernel: ield
Mar  7 18:19:35 www kernel: id 16745 tried to use non-present sched_yield
Mar  7 18:19:35 www kernel: 5 tried to use non-present sched_yield
Mar  7 18:19:35 www kernel: 16745 tried to use non-present sched_yield
Mar  7 18:19:35 www kernel: e non-present sched_yield
Mar  7 18:19:35 www kernel: _yield
Mar  7 18:19:35 www kernel:  non-present sched_yield
Mar  7 18:19:35 www kernel: ied to use non-present sched_yield
Mar  7 18:19:35 www kernel:  to use non-present sched_yield
Mar  7 18:19:35 www kernel: d to use non-present sched_yield
Mar  7 18:19:35 www kernel: n-present sched_yield
Mar  7 18:19:35 www kernel: r2 pid 16745 tried to use non-present sched_yield
Mar  7 18:19:35 www kernel: use non-present sched_yield
Mar  7 18:19:35 www kernel: -present sched_yield
Mar  7 18:19:35 www kernel:  pid 16745 tried to use non-present sched_yield
Mar  7 18:19:35 www kernel: non-present sched_yield
Mar  7 18:19:35 www kernel: ed to use non-present sched_yield
Mar  7 18:19:35 www kernel: hed_yield
Mar  7 18:19:35 www kernel: cmd thr2 pid 16745 tried to use non-present sched_yield
Mar  7 18:19:35 www kernel: 16745 tried to use non-present sched_yield
Mar  7 18:19:35 www kernel: t sched_yield
Mar  7 18:19:25 www kernel:  sccmhde dt_hyri2e lpdi
Mar  7 18:19:25 www kernel: cmd  thr126 7p4i5d  tr1i6e7d4 5t ot ried to use non-present sched_yield
Mar  7 18:19:25 www kernel: 67c4m5d  trtiherd2  tpoi du se1 6n7o4n5- ptrreiseedn tt os cuhseed _nyoine-lpdr
Mar  7 18:19:25 www kernel: scemndt  tshcrh2e dp_iydi el1d6

d thr2 pid 16745 tried to use non-p 1n6o7n4-5p rtersieendt tor eusseen tn osnc-hperde_syeinetl d
Mar  7 18:19:27 www kernel:  pidc m 1ds cht6he7r425  ptirdi ed1 6t7o4 5u ste2t hpri2d  pi1d6 74156 7t4r5i etdr iteod  utsoe  unsoen -nporne-spernets esncth eds_cyhieedl_dy
Mar  7 18:19:27 www kernel: t csmcdh edt_hyri2e lpdid
Mar  7 18:19:27 www kernel: nt cmsdc htehdr_2 pyiide ld1
Mar  7 18:19:28 www kernel:  sccmhedd _tyhire2l dp


FreeBSD/arm64 (www.zefox.org) (ttyu0)

login: smsc0: warning: failed to create new mbuf
Mar  7 18:21:46 www kernel: pid 16763 (swap), uid 1001, was killed: out of swap space
pagwaeitr buff: einite wait buffer: bufobj: 0, blkno: 559829, siszeswwa: p4a0_pager: i9ndefpinit6_e 
                  rn: budefinifote waibt bjuf:fer: b 0, blkno:uf ob559820, js: 0, blknoize: 4096
: 555233, size: 4096
swap_pager: indefinite wait buffer: bufobj: 0, blkno: 560096, size: 4096
swap_pager: indefinite wait buffer: bufobj: 0, blkno: 555285, size: 4096

The thing which most struck me was lines such as
Mar  7 18:19:27 www kernel: t csmcdh edt_hyri2e lpdid
in which the timestamp and origin of the message is undamaged, but
the content is thoroughly mangled. Does it provide any help in localizing
within the system what is out of sorts?

bob prohaska