Regress for 8139too in 2.6.20

Regress for 8139too in 2.6.20

[Larry Finger]

In kernel version 2.6.20, my network interface, a Uniden PCN 300 PCMCIA card that uses the 8139too
driver fails to initialize with Yenta and 8139too as modules. It worked correctly in 2.6.19. Using
git bisect, the bad commit is shown below:

finger@sonylap:~/linux-2.6> git bisect good
8d610dd52dd1da696e199e4b4545f33a2a5de5c6 is first bad commit
commit 8d610dd52dd1da696e199e4b4545f33a2a5de5c6
Author: Linus Torvalds <torvalds@woody.osdl.org>
Date:   Mon Dec 11 12:12:04 2006 -0800

    Make sure we populate the initroot filesystem late enough

    We should not initialize rootfs before all the core initializers have
    run.  So do it as a separate stage just before starting the regular
    driver initializers.

    Signed-off-by: Linus Torvalds <torvalds@osdl.org>

:040000 040000 12bc13def90d15921d41d2b285854b3e157a970f f936e01f6b1b2b75478484861d34e81830c73860 M
    include
:040000 040000 5673719c3f6b47b329cfc9554c112077634a9b19 9c2e768964af1500d62849836b9f8e801fe7f29e M
    init


If Yenta is built into the kernel, rather than a module, it works again with 2.6.20.

Larry

Re: Regress for 8139too in 2.6.20

[Andrew Morton]

> On Sun, 11 Feb 2007 18:03:33 -0600 Larry Finger <Larry.Finger@lwfinger.net> wrote:
> In kernel version 2.6.20, my network interface, a Uniden PCN 300 PCMCIA card that uses the 8139too
> driver fails to initialize with Yenta and 8139too as modules. It worked correctly in 2.6.19. Using
> git bisect, the bad commit is shown below:
> 
> finger@sonylap:~/linux-2.6> git bisect good
> 8d610dd52dd1da696e199e4b4545f33a2a5de5c6 is first bad commit
> commit 8d610dd52dd1da696e199e4b4545f33a2a5de5c6
> Author: Linus Torvalds <torvalds@woody.osdl.org>
> Date:   Mon Dec 11 12:12:04 2006 -0800
> 
>     Make sure we populate the initroot filesystem late enough
> 
>     We should not initialize rootfs before all the core initializers have
>     run.  So do it as a separate stage just before starting the regular
>     driver initializers.
> 
>     Signed-off-by: Linus Torvalds <torvalds@osdl.org>
> 
> :040000 040000 12bc13def90d15921d41d2b285854b3e157a970f f936e01f6b1b2b75478484861d34e81830c73860 M
>     include
> :040000 040000 5673719c3f6b47b329cfc9554c112077634a9b19 9c2e768964af1500d62849836b9f8e801fe7f29e M
>     init
> 
> 
> If Yenta is built into the kernel, rather than a module, it works again with 2.6.20.
> 

That's a bit surprising - the initcall levels don't affect modules. 
Presumably something went wrong in core kernel which later caused yenta
and/or 8139too to fail.

Have you tried diffing the before- and after-dmesgs to see if that particular
commit has caused any interesting differences?

And are you able to test any other cardbus devices to see whether it's
specific to 8139too?

Re: Regress for 8139too in 2.6.20

[Larry Finger]

Andrew Morton wrote:
>>
> 
> That's a bit surprising - the initcall levels don't affect modules. 
> Presumably something went wrong in core kernel which later caused yenta
> and/or 8139too to fail.
> 
> Have you tried diffing the before- and after-dmesgs to see if that particular
> commit has caused any interesting differences?
> 
> And are you able to test any other cardbus devices to see whether it's
> specific to 8139too?

No devices would work until I manually loaded yenta_socket. Before the change, the PCMCIA bridge was
discovered earlier, and yenta_socket was automatically loaded. Now I need to add it to the list of
modules to be loaded at bootup. With that change, everyting is OK.

The diff between yenta as a module and yenta built is follows.

Thanks,
Larry

-----------

--- /ide/dmesg_with_yenta_module        2007-02-12 18:51:35.000000000 -0600
+++ /ide/dmesg_with_yenta_builtin       2007-02-12 16:25:24.000000000 -0600
@@ -1,4 +1,4 @@
-Linux version 2.6.20-default-g7096ede5-dirty (finger@sonylap) (gcc version 4.0.2 20050901
(prerelease) (SUSE Linux)) #119 Mon Feb 12 18:40:07 CST 2007
+Linux version 2.6.20-default-g7096ede5 (finger@sonylap) (gcc version 4.0.2 20050901 (prerelease)
(SUSE Linux)) #116 Sun Feb 11 14:27:53 CST 2007
 BIOS-provided physical RAM map:
 sanitize start
 sanitize end
@@ -39,28 +39,28 @@
 ACPI: FACS 07FFFFC0, 0040
 ACPI: Disabling ACPI support
 Allocating PCI resources starting at 10000000 (gap: 08000000:f7fea400)
-Detected 331.611 MHz processor.
+Detected 331.592 MHz processor.
 Built 1 zonelists.  Total pages: 32497
 Kernel command line: root=/dev/hda3 vga=0x314 selinux=0    resume=/dev/hda2  splash=silent showopts
 Local APIC disabled by BIOS -- you can enable it with "lapic"
 mapped APIC to ffffd000 (01101000)
 Enabling fast FPU save and restore... done.
 Initializing CPU#0
-CPU 0 irqstacks, hard=c0421000 soft=c0422000
+CPU 0 irqstacks, hard=c0432000 soft=c0433000
 PID hash table entries: 512 (order: 9, 2048 bytes)
 Console: colour dummy device 80x25
 Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
 Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
-Memory: 124256k/131008k available (2092k kernel code, 6220k reserved, 886k data, 200k init, 0k highmem)
+Memory: 124188k/131008k available (2137k kernel code, 6288k reserved, 909k data, 200k init, 0k highmem)
 virtual kernel memory layout:
     fixmap  : 0xfffb6000 - 0xfffff000   ( 292 kB)
     vmalloc : 0xc8800000 - 0xfffb4000   ( 887 MB)
     lowmem  : 0xc0000000 - 0xc7ff0000   ( 127 MB)
-      .init : 0xc03ea000 - 0xc041c000   ( 200 kB)
-      .data : 0xc030b24b - 0xc03e8c48   ( 886 kB)
-      .text : 0xc0100000 - 0xc030b24b   (2092 kB)
+      .init : 0xc03fb000 - 0xc042d000   ( 200 kB)
+      .data : 0xc031653b - 0xc03f9c48   ( 909 kB)
+      .text : 0xc0100000 - 0xc031653b   (2137 kB)
 Checking if this processor honours the WP bit even in supervisor mode... Ok.
-Calibrating delay using timer specific routine.. 664.03 BogoMIPS (lpj=1328067)
+Calibrating delay using timer specific routine.. 664.05 BogoMIPS (lpj=1328111)
 Mount-cache hash table entries: 512
 CPU: After generic identify, caps: 0183f9ff 00000000 00000000 00000000 00000000 00000000 00000000
 CPU: L1 I cache: 16K, L1 D cache: 16K
@@ -104,8 +104,10 @@
   MEM window: 1c000000-1fffffff
 PCI: Found IRQ 9 for device 0000:00:0a.0
 PCI: Sharing IRQ 9 with 0000:00:08.1
+PCI: Setting latency timer of device 0000:00:0a.0 to 64
 PCI: Assigned IRQ 9 for device 0000:00:0a.1
 PCI: Sharing IRQ 9 with 0000:00:09.0
+PCI: Setting latency timer of device 0000:00:0a.1 to 64
 NET: Registered protocol family 2
 IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
 TCP established hash table entries: 4096 (order: 4, 81920 bytes)
@@ -115,7 +117,7 @@
 checking if image is initramfs... it is
 Freeing initrd memory: 1564k freed
 audit: initializing netlink socket (disabled)
-audit(1171306196.744:1): initialized
+audit(1171277305.752:1): initialized
 io scheduler noop registered
 io scheduler anticipatory registered (default)
 io scheduler deadline registered
@@ -138,25 +140,33 @@
 FDC 0 is a post-1991 82077
 RAMDISK driver initialized: 16 RAM disks of 64000K size 1024 blocksize
 loop: loaded (max 8 devices)
+Yenta: CardBus bridge found at 0000:00:0a.0 [104d:8042]
+Yenta: ISA IRQ mask 0x0cb8, PCI irq 9
+Socket status: 30000410
+Yenta: CardBus bridge found at 0000:00:0a.1 [104d:8042]
+Yenta: ISA IRQ mask 0x0cb8, PCI irq 9
+Socket status: 30000820
 PNP: No PS/2 controller found. Probing ports directly.
 serio: i8042 KBD port at 0x60,0x64 irq 1
 serio: i8042 AUX port at 0x60,0x64 irq 12
 mice: PS/2 mouse device common for all mice
 input: AT Translated Set 2 keyboard as /class/input/input0
 input: PC Speaker as /class/input/input1
+pccard: PCMCIA card inserted into slot 0
 input: PS/2 Mouse as /class/input/input2
 input: AlpsPS/2 ALPS GlidePoint as /class/input/input3
 NET: Registered protocol family 1
 Using IPI Shortcut mode
 Freeing unused kernel memory: 200k freed
 Time: tsc clocksource has been installed.
+pccard: CardBus card inserted into slot 1
 Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
 PIIX4: IDE controller at PCI slot 0000:00:07.1
 PIIX4: chipset revision 1
 PIIX4: not 100% native mode: will probe irqs later
     ide0: BM-DMA at 0xfcf0-0xfcf7, BIOS settings: hda:DMA, hdb:pio
-    ide1: BM-DMA at 0xfcf8-0xfcff, BIOS settings: hdc:DMA, hdd:pio
+    ide1: BM-DMA at 0xfcf8-0xfcff, BIOS settings: hdc:pio, hdd:pio
 Probing IDE interface ide0...
 hda: FUJITSU MHT2020AT, ATA DISK drive
 ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
@@ -184,16 +194,53 @@
 ReiserFS: hda4: checking transaction log (hda4)
 ReiserFS: hda4: Using r5 hash to sort names
 8139too Fast Ethernet driver 0.9.28
+PCI: Enabling device 0000:05:00.0 (0000 -> 0003)
+PCI: Setting latency timer of device 0000:05:00.0 to 64
+eth0: RealTek RTL8139 at 0x1800, 00:a0:b0:00:0b:da, IRQ 9
+eth0:  Identified 8139 chip type 'RTL-8139C'
 parport0: PC-style at 0x378 (0x778) [PCSPP,TRISTATE]
 parport0: irq 7 detected
 lp0: using parport0 (polling).
+cs: IO port probe 0x3e0-0x4ff: excluding 0x4d0-0x4d7
+cs: IO port probe 0x100-0x3af: clean.
+cs: IO port probe 0xc00-0xcff: clean.
+cs: IO port probe 0x820-0x8ff: clean.
+cs: IO port probe 0xa00-0xaff: clean.
+cs: memory probe 0xa0000000-0xa0ffffff: clean.
+pcmcia: registering new device pcmcia0.0
+cs: IO port probe 0x3e0-0x4ff: excluding 0x4d0-0x4d7
+cs: IO port probe 0x100-0x3af: clean.
+cs: IO port probe 0xc00-0xcff: clean.
+cs: IO port probe 0x820-0x8ff: clean.
+cs: IO port probe 0xa00-0xaff: clean.
+ieee80211_crypt: registered algorithm 'NULL'
 hdc: ATAPI 20X DVD-ROM drive, 128kB Cache, DMA
 Uniform CD-ROM driver Revision: 3.20
-hdc: packet command error: status=0x51 { DriveReady SeekComplete Error }
-hdc: packet command error: error=0x50 { LastFailedSense=0x05 }
-ide: failed opcode was: unknown
+ieee80211: 802.11 data/management/control stack, git-1.1.13
+ieee80211: Copyright (C) 2004-2005 Intel Corporation <jketreno@linux.intel.com>
+bcm43xx driver
+Probing IDE interface ide2...
+hde: FUJITSU MHT2080AT, ATA DISK drive
+ide2 at 0x100-0x107,0x10e on irq 3
+hde: max request size: 128KiB
+hde: 156301488 sectors (80026 MB) w/8192KiB Cache, CHS=65535/16/63
+hde: cache flushes supported
+ hde: hde1 hde2
+ide-cs: hde: Vpp = 0.0
+eth0: link up, 100Mbps, full-duplex, lpa 0x45E1
 Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
 NFSD: Using /var/lib/nfs/v4recovery as the NFSv4 state recovery directory
 NFSD: unable to find recovery directory /var/lib/nfs/v4recovery
 NFSD: starting 90-second grace period
 BIOS EDD facility v0.16 2004-Jun-25, 1 devices found
+kjournald starting.  Commit interval 5 seconds
+EXT3 FS on hde1, internal journal
+EXT3-fs: mounted filesystem with ordered data mode.
+kjournald starting.  Commit interval 5 seconds
+EXT3-fs warning: maximal mount count reached, running e2fsck is recommended
+EXT3 FS on hde2, internal journal
+EXT3-fs: mounted filesystem with ordered data mode.
+pcmcia: Detected deprecated PCMCIA ioctl usage from process: hald.
+pcmcia: This interface will soon be removed from the kernel; please expect breakage unless you
upgrade to new tools.
+pcmcia: see http://www.kernel.org/pub/linux/utils/kernel/pcmcia/pcmcia.html for details.
+spurious 8259A interrupt: IRQ7.