From 5e1bb6eb63b53d065b1fe35f4bd58961f3da63ab Mon Sep 17 00:00:00 2001 From: Ben Gras Date: Thu, 11 Dec 2008 14:45:31 +0000 Subject: [PATCH] added some code to debug why filesystems won't unmount --- servers/vfs/mount.c | 31 +++++++++++++++++++++++++++++-- 1 file changed, 29 insertions(+), 2 deletions(-) diff --git a/servers/vfs/mount.c b/servers/vfs/mount.c index a7135d20a..7448fa3cd 100644 --- a/servers/vfs/mount.c +++ b/servers/vfs/mount.c @@ -316,6 +316,7 @@ PRIVATE int mount_fs(endpoint_t fs_e) vmp->m_root_node = root_node; root_node->v_ref_count++; vmp->m_mounted_on = root_node; + root_dev = dev; ROOT_FS_E = fs_e; @@ -326,17 +327,19 @@ PRIVATE int mount_fs(endpoint_t fs_e) if (tfp->fp_rd == NULL) panic("fs", "do_mount: null rootdir", i); + if (tfp->fp_wd == NULL) + panic("fs", "do_mount: null workdir", i); + put_vnode(tfp->fp_rd); dup_vnode(root_node); tfp->fp_rd = root_node; - if (tfp->fp_wd == NULL) - panic("fs", "do_mount: null workdir", i); put_vnode(tfp->fp_wd); dup_vnode(root_node); tfp->fp_wd = root_node; } + return(OK); } @@ -421,6 +424,30 @@ Dev_t dev; count = 0; for (vp = &vnode[0]; vp < &vnode[NR_VNODES]; vp++) { if (vp->v_ref_count > 0 && vp->v_dev == dev) { + +#if 1 + int i; + struct fproc *tfp; + printf("unmount: vnode %d in use %d times\n", + vp->v_inode_nr, vp->v_ref_count); + for (i= 0, tfp= fproc; ifp_pid == PID_FREE) + continue; + if(tfp->fp_wd == vp) + printf("\tvnode %d: wd of pid %d\n", + vp->v_inode_nr, tfp->fp_pid); + if(tfp->fp_rd == vp) + printf("\tvnode %d: rd of pid %d\n", + vp->v_inode_nr, tfp->fp_pid); + for(n = 0; n < OPEN_MAX; n++) { + if(tfp->fp_filp[n] && tfp->fp_filp[n]->filp_vno == vp) + printf("\tvnode %d: fd %d of pid %d\n", + vp->v_inode_nr, n, tfp->fp_pid); + } + } +#endif + count += vp->v_ref_count; } } -- 2.44.0