Hi there While investigating the problem with hung git-upload-pack we think to have found a bug in wrapper.c:
#define MAX_IO_SIZE (8*1024*1024) This is then used in xread() to split read()s into suitable chunks. So far so good, but read() is only guaranteed to read as much as SSIZE_MAX bytes at a time. And on our platform that is way lower than those 8MB (only 52kB, POSIX allows it to be as small as 32k), and as a (rather strange) consequence mmap() (from compat/mmap.c) fails with EACCESS (why EACCESS?), because xpread() returns something > 0. How large is SSIZE_MAX on other platforms? What happens there if you try to read() more? Should't we rather use SSIZE_MAX on all platforms? If I'm reading the header files right, on Linux it is LONG_MAX (2TB?), so I guess we should really go for MIN(8*1024*1024,SSIZE_MAX)? bye, Jojo -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
