mirror of https://gitee.com/openkylin/linux.git
a684d69d15
i.e. with this simple test case:
int fd = open("/dev/zero", O_RDONLY);
munmap(mmap((void *)0x40000000, 0x1000_LEN, PROT_READ, MAP_PRIVATE, fd, 0), 0x1000);
close(fd);
we currently get:
kernel BUG at arch/x86/xen/enlighten.c:678!
...
EIP is at xen_release_pt+0x79/0xa9
...
Call Trace:
[<c041da25>] ? __pmd_free_tlb+0x1a/0x75
[<c047a192>] ? free_pgd_range+0x1d2/0x2b5
[<c047a2f3>] ? free_pgtables+0x7e/0x93
[<c047b272>] ? unmap_region+0xb9/0xf5
[<c047c1bd>] ? do_munmap+0x193/0x1f5
[<c047c24f>] ? sys_munmap+0x30/0x3f
[<c0408cce>] ? syscall_call+0x7/0xb
=======================
and xen complains:
(XEN) mm.c:2241:d4 Mfn 1cc37 not pinned
Further details at:
https://bugzilla.redhat.com/436453
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Cc: xen-devel@lists.xensource.com
Cc: Mark McLoughlin <markmc@redhat.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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|---|---|---|
| .. | ||
| boot | ||
| configs | ||
| crypto | ||
| ia32 | ||
| kernel | ||
| kvm | ||
| lguest | ||
| lib | ||
| mach-default | ||
| mach-es7000 | ||
| mach-generic | ||
| mach-rdc321x | ||
| mach-visws | ||
| mach-voyager | ||
| math-emu | ||
| mm | ||
| oprofile | ||
| pci | ||
| power | ||
| vdso | ||
| video | ||
| xen | ||
| Kconfig | ||
| Kconfig.cpu | ||
| Kconfig.debug | ||
| Makefile | ||
| Makefile_32.cpu | ||