Hi,
I am a program which will do many shmat. This program when executed without
valgrind it works as expected.
But when same program is executed under valgrind shmat parameters are getting
modified and shmat is failing with errno 22.
without valgrind ( taken using strace command)
----------------------------------------------
shmat(281542719, 0, 0) = ?
shmat(281575488, 0, 0) = ?
shmat(281608257, 0, 0) = ?
shmat(281641026, 0, 0) = ?
shmat(281673795, 0, 0) = ?
shmat(281706564, 0, 0) = ?
shmat(281739333, 0, 0) = ?
shmat(281772102, 0, 0) = ?
shmat(281804871, 0, 0) = ?
shmat(282001485, 0, 0) = ?
shmat(282034254, 0, 0) = ?
shmat(282067023, 0, 0) = ?
shmat(282099792, 0, 0) = ?
shmat(282132561, 0, 0) = ?
shmat(282329175, 0, 0) = ?
shmat(282361944, 0, 0) = ?
shmat(282394713, 0, 0) = ?
shmat(282427482, 0, 0) = ?
shmat(282460251, 0, 0) = ?
shmat(282853479, 0, 0) = ?
shmat(282886248, 0, 0) = ?
shmat(282919017, 0, 0) = ?
shmat(282951786, 0, 0) = ?
shmat(282984555, 0, 0) = ?
shmat(283345014, 0, 0) = ?
shmat(283377783, 0, 0) = ?
with valgrind ( taken using strace command)
----------------------------------------------
shmat(281542719, 0xf1c0000, 0) = ?
shmat(281575488, 0x17b57000, 0) = ?
shmat(281608257, 0x18ebf000, 0) = ?
shmat(281641026, 0x18edc000, 0) = ?
shmat(281673795, 0x1ffc1000, 0) = ?
shmat(281706564, 0x200ce000, 0) = ?
shmat(281739333, 0x24a50000, 0) = ?
shmat(281772102, 0x254ae000, 0) = ?
shmat(281804871, 0x254be000, 0) = ?
shmat(282001485, 0x336e9000, 0) = ?
shmat(282034254, 0x336f7000, 0) = ?
shmat(282067023, 0x33744000, 0) = ?
shmat(282099792, 0x4219000, 0) = ?
shmat(282132561, 0x3374f000, 0) = ?
shmat(282329175, 0x3377e000, 0) = ?
shmat(282361944, 0x3378d000, 0) = ?
shmat(282394713, 0x337fa000, 0) = ?
shmat(282427482, 0x421a000, 0) = ?
shmat(282460251, 0x3380a000, 0) = ?
shmat(282853479, 0x345b7000, 0) = ?
shmat(282886248, 0x345c4000, 0) = ?
shmat(282919017, 0x421b000, 0) = ?
shmat(282951786, 0x345df000, 0) = ?
shmat(282984555, 0x345e0000, 0) = ?
shmat(283345014, 0x3466b000, 0) = ?
shmat(283377783, 0x346f8000, 0) = ?
how to overcome this problem?
currently i am using valgrind version valgrind-3.6.0.
Thanks and regards,
Adishesh
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