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specfs(9): Attribute blame by stack trace for write to r/o medium.

This commit is contained in:
riastradh 2022-10-15 15:20:46 +00:00
parent 05fa4d8dc0
commit d86da41736
1 changed files with 13 additions and 2 deletions
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15
sys/miscfs/specfs/spec_vnops.c
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@ -1,4 +1,4 @@
/* $NetBSD: spec_vnops.c,v 1.215 2022/09/21 10:59:10 riastradh Exp $ */ /* $NetBSD: spec_vnops.c,v 1.216 2022/10/15 15:20:46 riastradh Exp $ */
/*- /*-
* Copyright (c) 2008 The NetBSD Foundation, Inc. * Copyright (c) 2008 The NetBSD Foundation, Inc.
@ -58,7 +58,11 @@
*/ */
#include <sys/cdefs.h> #include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: spec_vnops.c,v 1.215 2022/09/21 10:59:10 riastradh Exp $"); __KERNEL_RCSID(0, "$NetBSD: spec_vnops.c,v 1.216 2022/10/15 15:20:46 riastradh Exp $");
#ifdef _KERNEL_OPT
#include "opt_ddb.h"
#endif
#include <sys/param.h> #include <sys/param.h>
#include <sys/proc.h> #include <sys/proc.h>
@ -86,6 +90,10 @@ __KERNEL_RCSID(0, "$NetBSD: spec_vnops.c,v 1.215 2022/09/21 10:59:10 riastradh E
#include <miscfs/genfs/genfs.h> #include <miscfs/genfs/genfs.h>
#include <miscfs/specfs/specdev.h> #include <miscfs/specfs/specdev.h>
#ifdef DDB
#include <ddb/ddb.h>
#endif
/* /*
* Lock order: * Lock order:
* *
@ -1485,6 +1493,9 @@ spec_strategy(void *v)
if (mp && (mp->mnt_flag & MNT_RDONLY)) { if (mp && (mp->mnt_flag & MNT_RDONLY)) {
printf("%s blk %"PRId64" written while ro!\n", printf("%s blk %"PRId64" written while ro!\n",
mp->mnt_stat.f_mntonname, bp->b_blkno); mp->mnt_stat.f_mntonname, bp->b_blkno);
#ifdef DDB
db_stacktrace();
#endif
} }
} }
#endif /* DIAGNOSTIC */ #endif /* DIAGNOSTIC */