https://bugs.kde.org/show_bug.cgi?id=514206
Bug ID: 514206
Summary: Assertion '!sr_isError(sr)' failed - mmap fd points to
an open descriptor to a PCI device
Classification: Developer tools
Product: valgrind
Version First 3.24.0
Reported In:
Platform: RedHat Enterprise Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: memcheck
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Our binary mmap()'s a PCI device
(/sys/devices/pci0000:80/0000:80:01.0/0000:81:00.0/resource0), but Rocky9
returns errno 5 if one tries to pread() that descriptor. This causes the
sr_isError(sr) assertion when we run Valgrindm since it can't peek the
descriptor. I verified fd flags such as O_DIRECT don't matter here.
I'm not sure if this is due to more strict kernel policies, but our team
currently only observes this behavior on Rocky9. I was hoping to open a bug to
see if there was a future way to tweak the ELF / DWARF checks, as there's no
way for me to make this work without compiling a patch to skip the ELF check
logic.
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