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SubjectRe: 2.5.1-pre5 not easy to boot with devfs
Richard Gooch wrote:
>
> Pierre Rousselet writes:
> > Richard Gooch wrote:
> > > Indeed I do. Please Cc: me on devfs related stuff. And please apply
> > > devfs-patch-v200, which fixes a stupid typo. I'd also be interested in
> > > knowing the behaviour with 2.4.17-pre1.

Same looking Oops with 2.4.17-pre1 as with 2.5.1-pre5. A log with devfs
debug message is attached. I was able to reboot from the command line
after this oops.

Dec 2 10:04:31 milou kernel: Unable to handle kernel paging request at
virtual address 5a5a5a5e
Dec 2 10:04:31 milou kernel: c014f509
Dec 2 10:04:31 milou kernel: *pde = 00000000
Dec 2 10:04:31 milou kernel: Oops: 0002
Dec 2 10:04:31 milou kernel: CPU: 0
Dec 2 10:04:31 milou kernel: EIP: 0010:[ext2_remount+105/312] Not
tainted
Dec 2 10:04:31 milou kernel: EFLAGS: 00010206
Dec 2 10:04:31 milou kernel: eax: 5a5a5a5a ebx: 5a5a5a5a ecx:
0000000b edx: 5a5a5a5a
Dec 2 10:04:31 milou kernel: esi: 00000000 edi: 00000027 ebp:
00000000 esp: c7f61f40
Dec 2 10:04:31 milou kernel: ds: 0018 es: 0018 ss: 0018
Dec 2 10:04:31 milou kernel: Process devfsd (pid: 129,
stackpage=c7f61000)
Dec 2 10:04:31 milou kernel: Stack: 00000027 c015246c 5a5a5a5a c8282414
ffffffea 00000000 00000420 c847a800
Dec 2 10:04:31 milou kernel: c01e5280 c7e16224 5a5a5a5a 000003f9
00000000 00000000 00000001 00000000
Dec 2 10:04:31 milou kernel: c7f60000 00000000 00000000 00000000
c7f60000 c01e52ac c01e52ac c012e926
Dec 2 10:04:31 milou kernel: Call Trace: [devfs_read_super+144/212]
[sys_read+150/204] [system_call+51/56]
Dec 2 10:04:31 milou kernel: Code: ff 4b 04 0f 94 c0 84 c0 0f 84 09 01
00 00 3b 1d 40 e4 20 c0
Using defaults from ksymoops -t elf32-i386 -a i386

Code; 00000000 Before first symbol
00000000 <_EIP>:
Code; 00000000 Before first symbol
0: ff 4b 04 decl 0x4(%ebx)
Code; 00000002 Before first symbol
3: 0f 94 c0 sete %al
Code; 00000006 Before first symbol
6: 84 c0 test %al,%al
Code; 00000008 Before first symbol
8: 0f 84 09 01 00 00 je 117 <_EIP+0x117> 00000116
Before first symbol
Code; 0000000e Before first symbol
e: 3b 1d 40 e4 20 c0 cmp 0xc020e440,%ebx


Pierre
--
------------------------------------------------
Pierre Rousselet <pierre.rousselet@wanadoo.fr>
------------------------------------------------Dec 2 10:03:33 milou kernel: devfs: d_delete(): dentry: c7f41a48 inode: c7e6f9cc devfs_entry: c7fe75cc
Dec 2 10:04:21 milou kernel: devfs: lookup(ptmx): dentry: c7d96d94 parent: c1419724 by: "mc"
Dec 2 10:04:21 milou kernel: devfs: d_delete(): dropping negative dentry: c7d96d94
Dec 2 10:04:21 milou kernel: devfs: d_release(): dentry: c7d96d94 inode: 00000000
Dec 2 10:04:21 milou kernel: devfs: d_delete(): dentry: c7fd78cc inode: c7fd4804 devfs_entry: c7fd30c4
Dec 2 10:04:21 milou kernel: devfs: d_delete(): dentry: c7fd79b4 inode: c7fd4bd4 devfs_entry: c7fd314c
Dec 2 10:04:21 milou kernel: devfs: devfs_register(pty/s1): de: c7fe74bc dir: c14db8dc "pty" pp: c1419724
Dec 2 10:04:21 milou kernel: devfs: lookup(ttyp1): dentry: c7d96d94 parent: c1419724 by: "devfsd"
Dec 2 10:04:21 milou kernel: devfs: devfs_do_symlink(ttyp1)
Dec 2 10:04:21 milou kernel: devfs: get_vfs_inode(817): VFS inode: c7d9c9cc devfs_entry: c7fe73ac
Dec 2 10:04:21 milou kernel: devfs: mode: 0120555 uid: 0 gid: 0
Dec 2 10:04:21 milou kernel: devfs: d_delete(): dentry: c7d96d94 inode: c7d9c9cc devfs_entry: c7fe73ac
Dec 2 10:04:21 milou kernel: devfs: lookup(s1): dentry: c7d96e7c parent: c14db8dc by: "mc"
Dec 2 10:04:21 milou kernel: devfs: get_vfs_inode(816): VFS inode: c7d9c7e4 devfs_entry: c7fe74bc
Dec 2 10:04:21 milou kernel: devfs: mode: 020600 uid: 0 gid: 0
Dec 2 10:04:21 milou kernel: devfs: lookup(): new VFS inode(816): c7d9c7e4 devfs_entry: c7fe74bc
Dec 2 10:04:21 milou kernel: devfs: d_delete(): dentry: c7d96d94 inode: c7d9c9cc devfs_entry: c7fe73ac
Dec 2 10:04:21 milou kernel: devfs: d_delete(): dentry: c7d96e7c inode: c7d9c7e4 devfs_entry: c7fe74bc
Dec 2 10:04:21 milou kernel: devfs: d_delete(): dentry: c7d96d94 inode: c7d9c9cc devfs_entry: c7fe73ac
Dec 2 10:04:21 milou kernel: devfs: d_delete(): dentry: c7d96e7c inode: c7d9c7e4 devfs_entry: c7fe74bc
Dec 2 10:04:21 milou kernel: devfs: d_delete(): dentry: c7d96d94 inode: c7d9c9cc devfs_entry: c7fe73ac
Dec 2 10:04:21 milou kernel: devfs: d_delete(): dentry: c7d96e7c inode: c7d9c7e4 devfs_entry: c7fe74bc
Dec 2 10:04:21 milou kernel: devfs: d_delete(): dentry: c7d96d94 inode: c7d9c9cc devfs_entry: c7fe73ac
Dec 2 10:04:21 milou kernel: devfs: d_delete(): dentry: c7d96d94 inode: c7d9c9cc devfs_entry: c7fe73ac
Dec 2 10:04:26 milou kernel: devfs: devfs_unregister(): de->name: "s1" de: c7fe74bc
Dec 2 10:04:26 milou kernel: devfs: d_delete(): dentry: c7fd7940 inode: c7fd49ec devfs_entry: c14db9ec
Dec 2 10:04:26 milou kernel: devfs: unlink(ttyp1)
Dec 2 10:04:26 milou kernel: devfs: d_iput(): dentry: c7d96d94 inode: c7d9c9cc de: c7fe73ac de->dentry: c7d96d94
Dec 2 10:04:26 milou kernel: devfs: devfs_put(ttyp1): de: c7fe73ac, parent: c1419724 ""
Dec 2 10:04:26 milou kernel: devfs: d_delete(): dropping negative dentry: c7d96d94
Dec 2 10:04:26 milou kernel: devfs: d_release(): dentry: c7d96d94 inode: 00000000
Dec 2 10:04:26 milou kernel: devfs: d_delete(): dentry: c7d96e7c inode: c7d9c7e4 devfs_entry: c7fe74bc
Dec 2 10:04:26 milou kernel: devfs: d_iput(): dentry: c7d96e7c inode: c7d9c7e4 de: c7fe74bc de->dentry: c7d96e7c
Dec 2 10:04:26 milou kernel: devfs: devfs_put(s1): de: c7fe74bc, parent: c14db8dc "pty"
Dec 2 10:04:26 milou kernel: devfs: d_release(): dentry: c7d96e7c inode: 00000000
Dec 2 10:04:31 milou kernel: devfs: d_delete(): dentry: cff34138 inode: cff6cc14 devfs_entry: c14ea23c
Dec 2 10:04:31 milou kernel: devfs: d_delete(): dentry: c7f74634 inode: c7f73bf4 devfs_entry: c15e86bc
Dec 2 10:04:31 milou kernel: devfs: devfs_unregister(): de->name: "s0" de: c7fe76dc
Dec 2 10:04:31 milou kernel: devfs: d_delete(): dentry: c7fd7858 inode: c7fd461c devfs_entry: c14db964
Dec 2 10:04:31 milou kernel: devfs: d_delete(): dentry: c7f41ba4 inode: c7e6fbb4 devfs_entry: c7fe76dc
Dec 2 10:04:31 milou kernel: devfs: d_iput(): dentry: c7f41ba4 inode: c7e6fbb4 de: c7fe76dc de->dentry: c7f41ba4
Dec 2 10:04:31 milou kernel: devfs: d_release(): dentry: c7f41ba4 inode: 00000000
Dec 2 10:04:31 milou kernel: devfs: devfs_put(s0): de: c7fe76dc, parent: c14db8dc "pty"
Dec 2 10:04:31 milou kernel: Unable to handle kernel paging request at virtual address 5a5a5a5e
Dec 2 10:04:31 milou kernel: printing eip:
Dec 2 10:04:31 milou kernel: c014f509
Dec 2 10:04:31 milou kernel: *pde = 00000000
Dec 2 10:04:31 milou kernel: Oops: 0002
Dec 2 10:04:31 milou kernel: CPU: 0
Dec 2 10:04:31 milou kernel: EIP: 0010:[ext2_remount+105/312] Not tainted
Dec 2 10:04:31 milou kernel: EFLAGS: 00010206
Dec 2 10:04:31 milou kernel: eax: 5a5a5a5a ebx: 5a5a5a5a ecx: 0000000b edx: 5a5a5a5a
Dec 2 10:04:31 milou kernel: esi: 00000000 edi: 00000027 ebp: 00000000 esp: c7f61f40
Dec 2 10:04:31 milou kernel: ds: 0018 es: 0018 ss: 0018
Dec 2 10:04:31 milou kernel: Process devfsd (pid: 129, stackpage=c7f61000)
Dec 2 10:04:31 milou kernel: Stack: 00000027 c015246c 5a5a5a5a c8282414 ffffffea 00000000 00000420 c847a800
Dec 2 10:04:31 milou kernel: c01e5280 c7e16224 5a5a5a5a 000003f9 00000000 00000000 00000001 00000000
Dec 2 10:04:31 milou kernel: c7f60000 00000000 00000000 00000000 c7f60000 c01e52ac c01e52ac c012e926
Dec 2 10:04:31 milou kernel: Call Trace: [devfs_read_super+144/212] [sys_read+150/204] [system_call+51/56]
Dec 2 10:04:31 milou kernel:
Dec 2 10:04:31 milou kernel: Code: ff 4b 04 0f 94 c0 84 c0 0f 84 09 01 00 00 3b 1d 40 e4 20 c0
Dec 2 10:04:53 milou kernel: devfs: d_delete(): dentry: c141b4b8 inode: c155d434 devfs_entry: c14ea2c4
Dec 2 10:04:53 milou kernel: devfs: d_delete(): dentry: c141b4b8 inode: c155d434 devfs_entry: c14ea2c4
Dec 2 10:04:53 milou last message repeated 6 times
Dec 2 10:04:53 milou kernel: devfs: devfs_unregister(): de->name: "6" de: c84799cc
Dec 2 10:04:53 milou kernel: devfs: d_delete(): dentry: c7f74e5c inode: c7f70064 devfs_entry: c84799cc
Dec 2 10:04:53 milou kernel: devfs: d_iput(): dentry: c7f74e5c inode: c7f70064 de: c84799cc de->dentry: c7f74e5c
Dec 2 10:04:53 milou kernel: devfs: d_release(): dentry: c7f74e5c inode: 00000000
Dec 2 10:04:53 milou kernel: devfs: devfs_unregister(): de->name: "a6" de: c8479a54
Dec 2 10:04:53 milou kernel: devfs: d_delete(): dentry: c7f74f44 inode: c7f70434 devfs_entry: c8479a54
Dec 2 10:04:53 milou kernel: devfs: d_iput(): dentry: c7f74f44 inode: c7f70434 de: c8479a54 de->dentry: c7f74f44
Dec 2 10:04:53 milou kernel: devfs: d_release(): dentry: c7f74f44 inode: 00000000
Dec 2 10:04:53 milou kernel: devfs: d_delete(): dentry: c8306b30 inode: c8319a2c devfs_entry: c14ea67c
Dec 2 10:04:53 milou kernel: devfs: devfs_unregister(): de->name: "5" de: c15f69ec
Dec 2 10:04:53 milou kernel: devfs: d_delete(): dentry: c7f74abc inode: c7f71044 devfs_entry: c15f69ec
Dec 2 10:04:53 milou kernel: devfs: d_iput(): dentry: c7f74abc inode: c7f71044 de: c15f69ec de->dentry: c7f74abc
Dec 2 10:04:53 milou init: Switching to runlevel: 6
Dec 2 10:04:53 milou kernel: devfs: d_release(): dentry: c7f74abc inode: 00000000
Dec 2 10:04:53 milou kernel: devfs: devfs_unregister(): de->name: "a5" de: c15f6eb4
Dec 2 10:04:53 milou kernel: devfs: d_delete(): dentry: c7f74ba4 inode: c7f71414 devfs_entry: c15f6eb4
Dec 2 10:04:53 milou kernel: devfs: d_iput(): dentry: c7f74ba4 inode: c7f71414 de: c15f6eb4 de->dentry: c7f74ba4
Dec 2 10:04:53 milou kernel: devfs: d_release(): dentry: c7f74ba4 inode: 00000000
Dec 2 10:04:53 milou kernel: devfs: d_delete(): dentry: c8306abc inode: c8319844 devfs_entry: c14ea5f4
Dec 2 10:04:53 milou kernel: devfs: devfs_unregister(): de->name: "4" de: c15f6a74
Dec 2 10:04:53 milou kernel: devfs: d_delete(): dentry: c7f74c8c inode: c7f717e4 devfs_entry: c15f6a74
Dec 2 10:04:53 milou kernel: devfs: d_iput(): dentry: c7f74c8c inode: c7f717e4 de: c15f6a74 de->dentry: c7f74c8c
Dec 2 10:04:53 milou kernel: devfs: d_release(): dentry: c7f74c8c inode: 00000000
Dec 2 10:04:53 milou kernel: devfs: devfs_unregister(): de->name: "a4" de: c8479944
Dec 2 10:04:53 milou kernel: devfs: d_delete(): dentry: c7f74d74 inode: c7f71bb4 devfs_entry: c8479944
Dec 2 10:04:53 milou kernel: devfs: d_iput(): dentry: c7f74d74 inode: c7f71bb4 de: c8479944 de->dentry: c7f74d74
Dec 2 10:04:53 milou kernel: devfs: d_release(): dentry: c7f74d74 inode: 00000000
Dec 2 10:04:53 milou kernel: devfs: d_delete(): dentry: c8306a48 inode: c831965c devfs_entry: c14ea56c
Dec 2 10:04:53 milou kernel: devfs: devfs_unregister(): de->name: "3" de: c15f6e2c
Dec 2 10:04:53 milou kernel: devfs: d_delete(): dentry: c7f748ec inode: c7f72844 devfs_entry: c15f6e2c
Dec 2 10:04:53 milou kernel: devfs: d_iput(): dentry: c7f748ec inode: c7f72844 de: c15f6e2c de->dentry: c7f748ec
Dec 2 10:04:53 milou kernel: devfs: d_release(): dentry: c7f748ec inode: 00000000
Dec 2 10:04:53 milou kernel: devfs: devfs_unregister(): de->name: "a3" de: c15f6d1c
Dec 2 10:04:53 milou kernel: devfs: d_delete(): dentry: c7f749d4 inode: c7f72c14 devfs_entry: c15f6d1c
Dec 2 10:04:53 milou kernel: devfs: d_iput(): dentry: c7f749d4 inode: c7f72c14 de: c15f6d1c de->dentry: c7f749d4
Dec 2 10:04:53 milou kernel: devfs: d_release(): dentry: c7f749d4 inode: 00000000
Dec 2 10:04:53 milou kernel: devfs: d_delete(): dentry: c83069d4 inode: c8319474 devfs_entry: c14ea4e4
Dec 2 10:04:53 milou kernel: devfs: devfs_unregister(): de->name: "2" de: c15f6da4
Dec 2 10:04:53 milou kernel: devfs: d_delete(): dentry: c7f7471c inode: c7f720a4 devfs_entry: c15f6da4
Dec 2 10:04:53 milou kernel: devfs: d_iput(): dentry: c7f7471c inode: c7f720a4 de: c15f6da4 de->dentry: c7f7471c
Dec 2 10:04:53 milou kernel: devfs: d_release(): dentry: c7f7471c inode: 00000000
Dec 2 10:04:53 milou kernel: devfs: devfs_unregister(): de->name: "a2" de: c15f6f3c
Dec 2 10:04:53 milou kernel: devfs: d_delete(): dentry: c7f74804 inode: c7f72474 devfs_entry: c15f6f3c
Dec 2 10:04:53 milou kernel: devfs: d_iput(): dentry: c7f74804 inode: c7f72474 de: c15f6f3c de->dentry: c7f74804
Dec 2 10:04:53 milou kernel: devfs: d_release(): dentry: c7f74804 inode: 00000000
Dec 2 10:04:53 milou kernel: devfs: d_delete(): dentry: c8306960 inode: c831928c devfs_entry: c14ea45c
Dec 2 10:04:58 milou kernel: devfs: d_delete(): dentry: c141b4b8 inode: c155d434 devfs_entry: c14ea2c4
Dec 2 10:04:58 milou last message repeated 2 times
Dec 2 10:04:58 milou kernel: devfs: devfs_unregister(): de->name: "1" de: c15e8634
Dec 2 10:04:58 milou kernel: devfs: d_delete(): dentry: c7f7454c inode: c7f73824 devfs_entry: c15e8634
Dec 2 10:04:58 milou kernel: devfs: d_iput(): dentry: c7f7454c inode: c7f73824 de: c15e8634 de->dentry: c7f7454c
Dec 2 10:04:58 milou kernel: devfs: d_release(): dentry: c7f7454c inode: 00000000
Dec 2 10:04:58 milou kernel: devfs: devfs_unregister(): de->name: "a1" de: c15e86bc
Dec 2 10:04:58 milou kernel: devfs: d_delete(): dentry: c7f74634 inode: c7f73bf4 devfs_entry: c15e86bc
Dec 2 10:04:58 milou kernel: devfs: d_iput(): dentry: c7f74634 inode: c7f73bf4 de: c15e86bc de->dentry: c7f74634
Dec 2 10:04:58 milou kernel: devfs: d_release(): dentry: c7f74634 inode: 00000000
Dec 2 10:04:58 milou kernel: devfs: d_delete(): dentry: c83068ec inode: c83190a4 devfs_entry: c14ea3d4
Dec 2 10:04:59 milou kernel: devfs: devfs_register(1): de: c7fe729c dir: c14d1ba4 "vcc" pp: c1419724
Dec 2 10:04:59 milou exiting on signal 15
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