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fe68fb0525
SUSE kernels distribution enables CONFIG_PRINTK_CALLER by default.
One line of cat /dev/kmsg is like:
6,904,9506214456,-,caller=T24012;loop8: detected capacity change from 0
to 354304
If CONFIG_PRINTK_CALLER is off:
6,721,53563833,-;loop0: detected capacity change from 0 to 354304
',caller=T24012' is the redundant part needed to be handled.
Otherwise pos will be lager than buf size causing sz underflowed.
Then constructor of std::string will throw a exception to break
tests:
$ make check_local T=shell/000-basic.sh
VERBOSE=0 ./lib/runner \
--testdir . --outdir results \
--flavours ndev-vanilla --only shell/000-basic.sh --skip @
running 1 tests
running: [ndev-vanilla] shell/000-basic.sh
0:00.000Exception: basic_string::_M_create
make[1]: *** [Makefile:148: check_local] Error 1
make[1]: Leaving directory '/root/lvm2/test'
make: *** [Makefile:89: check_local] Error 2
Fix it with strchr for ';' as delimiter to get pos.
Reported-by: Su Yue <glass.su@suse.com>