Re: 2.6.14-mm2

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On 11/11/2005 7:07 p.m., Andrew Morton wrote:
Reuben Farrelly <[email protected]> wrote:
Hi,

On 11/11/2005 5:35 p.m., Andrew Morton wrote:
ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.14/2.6.14-mm2/

- reiser4 seems to be broken when built as a module (due, I assume, to a
  reiser4-specific kbuild change).  CONFIG_REISER4_FS=y will be needed.

- New git tree git-cfq.patch - CFQ I/O scheduler updates from Jens

- The git-pcmcia tree has been reinstated

- git-audit and the several -mm fixups to it have been dropped for now - it's
  undergoing a bit of churn.

- Numerous subsystem updates.  Notably more v4l work.
Network is a no-go for me:

[root@tornado ~]# /etc/init.d/network restart
e100: 0000:06:03.0: e100_eeprom_load: EEPROM corrupted
e100: probe of 0000:06:03.0 failed with error -11
sky2 0000:04:00.0: unsupported chip type 0xff
sky2: probe of 0000:04:00.0 failed with error -95

At a guess I'd say we didn't power the NIC up.

It fails almost all the time (but not 100%). However if by chance it *does* come up on boot (without the message about eeprom being corrupted) then I can kill it by just shutting down the ethX interface and then rmmod'ing the e100 + sky2 modules, and then trying to reload them again. Then the message above comes up then, as well as if it fails when booting.

When trying to bring up eth0, I this message is always logged:

Nov 11 21:16:07 tornado kernel: e100: probe of 0000:06:03.0 failed with error -11

It fails even on a cold boot.

2.6.14-rc5-mm1 does not exhibit this behaviour, not only because the modules
come up fine every time, but even after being removed and reinserted into the
kernel they still work OK.

[I need to use those two modules because I've been helping test the sky2 driver, and only want one eth0 network driver loaded at a time]


Could you please generate full dmesg output for good and bad kernels?

in http://www.reub.net/kernel/   (which is up most of the time at present).

Also `lspci -vvxx -s 06:03.0' to have a look at the card's config space.

2.6.14-rc5-mm1 with eth0 up on boot:

06:03.0 Ethernet controller: Intel Corporation 82557/8/9 [Ethernet Pro 100]
(rev 05)
        Subsystem: Intel Corporation EtherExpress PRO/100+ Management Adapter
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
        Latency: 32 (2000ns min, 14000ns max), Cache Line Size 10
        Interrupt: pin A routed to IRQ 19
        Region 0: Memory at fe000000 (32-bit, prefetchable) [size=4K]
        Region 1: I/O ports at b800 [size=32]
        Region 2: Memory at ff300000 (32-bit, non-prefetchable) [size=1M]
        Expansion ROM at fe100000 [disabled] [size=1M]
        Capabilities: [dc] Power Management version 1
                Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA
PME(D0+,D1+,D2+,D3hot+,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00: 86 80 29 12 17 01 90 02 05 00 00 02 10 20 00 00
10: 08 00 00 fe 01 b8 00 00 00 00 30 ff 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 86 80 0a 00
30: 00 00 40 ff dc 00 00 00 00 00 00 00 0a 01 08 38


2.6.14-mm2, eth0 did not come up on boot:

[root@tornado ~]# lspci -vvxx -s 06:03.0
06:03.0 Ethernet controller: Intel Corporation 82557/8/9 [Ethernet Pro 100]
(rev 05)
        Subsystem: Intel Corporation EtherExpress PRO/100+ Management Adapter
        Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV+ VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
        Interrupt: pin A routed to IRQ 19
        Region 0: Memory at fe000000 (32-bit, prefetchable) [size=4K]
        Region 1: I/O ports at b800 [size=32]
        Region 2: Memory at ff300000 (32-bit, non-prefetchable) [size=1M]
        Expansion ROM at fe100000 [disabled] [size=1M]
        Capabilities: [dc] Power Management version 1
                Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA
PME(D0+,D1+,D2+,D3hot+,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00: 86 80 29 12 13 01 90 02 05 00 00 02 10 20 00 00
10: 08 00 00 fe 01 b8 00 00 00 00 30 ff 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 86 80 0a 00
30: 00 00 40 ff dc 00 00 00 00 00 00 00 0a 01 08 38

[root@tornado ~]#


Both drivers worked under 2.6.14-rc5-mm1, but failed with 2.6.14-mm2. I also re-tested against 2.6.14-mm1 and this problem also occurs there (I didn't get to test this this far with -mm1, had too many problems with other things and been having other hassles such as dsl connection).

Are you able to test just
ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.14/2.6.14-mm2/broken-out/linus.patch ?

Yes, no such problem with that version.  But it spews out loads of debug
messages though:

Debug: sleeping function called from invalid context at include/asm/semaphore.h:99
in_atomic():1, irqs_disabled():1
 [<c0103c10>] dump_stack+0x17/0x19
 [<c0119824>] __might_sleep+0x9d/0xae
 [<c028754b>] scsi_disk_get_from_dev+0x15/0x48
 [<c0287d86>] sd_prepare_flush+0x17/0x5a
 [<c0277e19>] scsi_prepare_flush_fn+0x30/0x33
 [<c01dfc30>] blk_start_pre_flush+0xd5/0x13f
 [<c01df200>] elv_next_request+0x10e/0x16b
 [<c027825b>] scsi_request_fn+0x4b/0x2fd
 [<c01df041>] __elv_add_request+0x105/0x172
 [<c01e2371>] __make_request+0x1d3/0x47a
 [<c01e2756>] generic_make_request+0xb3/0x128
 [<c01e2814>] submit_bio+0x49/0xce
 [<c0297b58>] md_super_write+0x87/0xa3
 [<c029980e>] md_update_sb+0xc3/0x175
 [<c029df6d>] md_check_recovery+0x17b/0x427
 [<c0296103>] raid1d+0x1f/0x38d
 [<c029c767>] md_thread+0x3b/0xee
 [<c012f227>] kthread+0x99/0x9d
 [<c010112d>] kernel_thread_helper+0x5/0xb

I think this was the one addressed in a patch sent by James Bottomley, Tue, 08
Nov 2005 09:21:07 -0500 which is now in -mm2.  I guess that patch wants to be
pushed to Linus ;-)

The 2.6.14 with your linus.patch works fine, so it looks like an -mm(1|2) specific problem, which is common to both sky2 and e100 drivers (unlikely to be e100 specific I guess).

reuben

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