https://bugs.kde.org/show_bug.cgi?id=416682
Bug ID: 416682
Summary: [MIPS-Linux] mmap failed under valgrind
Product: valgrind
Version: 3.11.0
Platform: Other
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: memcheck
Assignee: jsew...@acm.org
Reporter: muppakrish...@gmail.com
Target Milestone: ---
Seen issue mmap failure issue when launching Embedded OS and error value 22
(EINVAL 22 Invalid argument)
The same application is working fine if not running under valgrind.
Based on analysis found the issue is with mmap and could see the following
error from valgrind.
Line 1446: ==828== Warning: set address range perms: large range [0x14b80000,
0x2b19e000) (defined)
Line 1452: ==828== Warning: set address range perms: large range [0x14b80000,
0x2b19e000) (noaccess)
Tried with both valgrind 3.11.0 and 3.15.0 but result is same.
And from understating,tried with below patch to ignore MAP_FIXED but it didn't
work.
--- valgrind-3.15.0/coregrind/m_syswrap/syswrap-generic.c.keep 2020-01-24
12:29:43.935747920 +0530
+++ valgrind-3.15.0/coregrind/m_syswrap/syswrap-generic.c 2020-01-24
12:30:56.403747920 +0530
@@ -2320,7 +2320,7 @@ ML_(generic_PRE_sys_mmap) ( ThreadId tid
/* Otherwise we're OK (so far). Install aspacem's choice of
address, and let the mmap go through. */
sres = VG_(am_do_mmap_NO_NOTIFY)(advised, arg2, arg3,
- arg4 | VKI_MAP_FIXED,
+ arg4,
arg5, arg6);
# if defined(VKI_MAP_32BIT)
@@ -2346,7 +2346,7 @@ ML_(generic_PRE_sys_mmap) ( ThreadId tid
}
/* and try again with the kernel */
sres = VG_(am_do_mmap_NO_NOTIFY)(advised, arg2, arg3,
- arg4 | VKI_MAP_FIXED,
+ arg4,
arg5, arg6);
}
Please suggest me with possible solution to fix the issue.
Target Environment details:
OS: Embedded-Linux and MIPS Architecture
Kernel: 3.3.8-3.9
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