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Red Hat Bugzilla – Attachment 305460 Details for
Bug 446599
jbd races lead to EIO for O_DIRECT
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testcase to trigger O_DIRECT EIO problem
testcase.c (text/x-csrc), 580 bytes, created by
Bryn M. Reeves
on 2008-05-15 09:55:39 UTC
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Description:
testcase to trigger O_DIRECT EIO problem
Filename:
MIME Type:
Creator:
Bryn M. Reeves
Created:
2008-05-15 09:55:39 UTC
Size:
580 bytes
patch
obsolete
>#include <stdio.h> >#include <unistd.h> >#include <stdlib.h> >#include <sys/types.h> >#include <sys/stat.h> >#include <fcntl.h> >#include <string.h> > >char *buf; >#define K64 64*1024 > >int main(int argc, char *argv[]) >{ > int fd, i; > > if (argc == 2 && strcmp(argv[1], "-d") == 0) > fd = open("testfile", O_DIRECT|2); > else > fd = open("testfile", 2); > > if (fd < 0) { > perror("open failed\n"); > exit(1); > } > > buf = valloc(K64); > >repeat: > > lseek(fd, 0, 0); > for (i=0; i < 1000; i++) { > if (write(fd, buf, K64) < 0) { > perror("write failed"); > exit(2); > } > > } > goto repeat; > >} > >
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bug 446599
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