Re: another uninterruptable hang in sendfile

2015-11-23 Thread Jan Kara
On Fri 20-11-15 17:16:06, Dmitry Vyukov wrote: > Hello, > > On commit 8005c49d9aea74d382f474ce11afbbc7d7130bec (Nov 15). > > The program is: > > // autogenerated by syzkaller (http://github.com/google/syzkaller) > #define _GNU_SOURCE > #include > #include > #include > #include > #include >

another uninterruptable hang in sendfile

2015-11-20 Thread Dmitry Vyukov
Hello, On commit 8005c49d9aea74d382f474ce11afbbc7d7130bec (Nov 15). The program is: // autogenerated by syzkaller (http://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #define SYS_memfd_create 319 int main() { int r1 = eventfd(0, 0);

Re: Uninterruptable hang in sendfile

2015-10-12 Thread Jan Kara
Hello, On Mon 12-10-15 11:18:48, Dmitry Vyukov wrote: > Hello, > > The following program leads to hang in D state in: This is the minimal reproducer: int fd; off_t off = 0; fd = open("file", O_RDWR | O_TRUNC | O_SYNC | O_CREAT, 0644); ftruncate(fd, 2);

Uninterruptable hang in sendfile

2015-10-12 Thread Dmitry Vyukov
Hello, The following program leads to hang in D state in: // autogenerated by syzkaller (http://github.com/google/syzkaller) #include #include #include int main() { long r0 = syscall(SYS_mmap, 0x20001000ul, 0x1000ul, 0x3ul, 0x32ul, 0xul, 0x0ul); memcpy((void*)0