RE: PROBLEM: [3.4] neigh_destroy() crashes on unplug netdev.
Dear Eric: 3.6 or later kernels (including recent mainline) do not have this problem. 3.4.105 is based on an old kernel, but it is a latest kernel of 3.4 LTS branch. I think it is better to backport 20 patches to LTS branch. But if you do not have such support policy, I will apply these patches to my 3.4 kernel only. Thanks -Original Message- From: Eric Dumazet [mailto:eric.duma...@gmail.com] Sent: Thursday, January 15, 2015 4:03 PM To: Nakashima Akihiro Cc: da...@davemloft.net; net...@vger.kernel.org; Ueda Motoki; Otsu Takahiro; Tomono Mitsunori; linux-kernel@vger.kernel.org Subject: Re: PROBLEM: [3.4] neigh_destroy() crashes on unplug netdev. On Thu, 2015-01-15 at 05:57 +, Nakashima Akihiro wrote: > Dear David and networking developers: > > I got kernel panic on 3.4.105 kernel. > Please see a report below. Please try a recent kernel. We are not going to debug such an old one, given there are chances we already fixed the problem ages ago. Thanks
PROBLEM: [3.4] neigh_destroy() crashes on unplug netdev.
s :00
03f8-03ff : serial
0400-0453 : pnp 00:0a
0400-0403 : ACPI PM1a_EVT_BLK
0404-0405 : ACPI PM1a_CNT_BLK
0408-040b : ACPI PM_TMR
0410-0415 : ACPI CPU throttle
0420-042f : ACPI GPE0_BLK
0450-0450 : ACPI PM2_CNT_BLK
0454-0457 : pnp 00:0b
0458-047f : pnp 00:0a
04d0-04d1 : pnp 00:08
0500-057f : pnp 00:0a
0cf8-0cff : PCI conf1
0d00- : PCI Bus :00
1180-119f : pnp 00:0a
d000-dfff : PCI Bus :04
d000-d01f : :04:00.0
e000-efff : PCI Bus :03
e000-e0ff : :03:00.0
f000-f03f : :00:02.0
f040-f05f : :00:1f.3
f060-f07f : :00:1f.2
f060-f07f : ahci
f080-f09f : :00:19.0
f0a0-f0a3 : :00:1f.2
f0a0-f0a3 : ahci
f0b0-f0b7 : :00:1f.2
f0b0-f0b7 : ahci
f0c0-f0c3 : :00:1f.2
f0c0-f0c3 : ahci
f0d0-f0d7 : :00:1f.2
f0d0-f0d7 : ahci
--- /proc/iomem ---
- : reserved
0001-0009d7ff : System RAM
0009d800-0009 : reserved
000a-000b : PCI Bus :00
000a-000b : Video RAM area
000c-000d : PCI Bus :00
000c-000cd7ff : Video ROM
000e-000f : reserved
000f-000f : System ROM
0010-1fff : System RAM
0100-0155addd : Kernel code
0155adde-01813f3f : Kernel data
018c-0194bfff : Kernel bss
2000-201f : reserved
2020-3fff : System RAM
4000-401f : reserved
4020-bad8bfff : System RAM
bad8c000-badd8fff : ACPI Non-volatile Storage
badd9000-bade0fff : ACPI Tables
bade1000-badf5fff : reserved
badf6000-badf7fff : System RAM
badf8000-bae04fff : ACPI Non-volatile Storage
bae05000-bae2bfff : reserved
bae2c000-bae6efff : ACPI Non-volatile Storage
bae6f000-baff : System RAM
bb00-bb7f : RAM buffer
bb80-bf9f : reserved
bfa0- : PCI Bus :00
d000-dfff : :00:02.0
e000-efff : PCI MMCONFIG [bus 00-ff]
e000-efff : pnp 00:01
fe00-fe3f : :00:02.0
fe40-fe4f : PCI Bus :04
fe40-fe47 : :04:00.0
fe40-fe47 : e1000e
fe48-fe4b : :04:00.0
fe4c-fe4d : :04:00.0
fe4c-fe4d : e1000e
fe4e-fe4e3fff : :04:00.0
fe4e-fe4e3fff : e1000e
fe50-fe5f : PCI Bus :03
fe50-fe5007ff : :03:00.0
fe50-fe5007ff : firewire_ohci
fe60-fe61 : :00:19.0
fe60-fe61 : e1000e
fe62-fe623fff : :00:1b.0
fe62-fe623fff : ICH HD audio
fe624000-fe6240ff : :00:1f.3
fe625000-fe6257ff : :00:1f.2
fe625000-fe6257ff : ahci
fe626000-fe6263ff : :00:1d.0
fe626000-fe6263ff : ehci_hcd
fe627000-fe6273ff : :00:1a.0
fe627000-fe6273ff : ehci_hcd
fe628000-fe628fff : :00:19.0
fe628000-fe628fff : e1000e
fe629000-fe62900f : :00:16.0
fec0-fec003ff : IOAPIC 0
fed0-fed003ff : HPET 0
fed08000-fed08fff : pnp 00:0a
fed1-fed19fff : pnp 00:01
fed1c000-fed1 : reserved
fed1c000-fed1 : pnp 00:0a
fed2-fed3 : pnp 00:01
fed9-fed93fff : pnp 00:01
fee0-fee0 : pnp 00:01
fee0-fee00fff : Local APIC
ff00- : reserved
ff00- : pnp 00:0a
1-23f7f : System RAM
23f80-23fff : RAM buffer
[7.5.] PCI information ('lspci -vvv' as root)
I think this is no relationship about the problem.
If it is needed, I will gather it.
[7.6.] SCSI information (from /proc/scsi/scsi):
I don't think no relationship about this issue.
If it is needed, I will gather it.
[7.7.] Other information that might be relevant to the problem
(please look in /proc and include all information that you
think to be relevant):
[X.] Other notes, patches, fixes, workarounds:
patches I described on [2.] look effective.
Best regards,
Akihiro Nakashima
----------
NAKASHIMA Akihiro
nakashima.akih...@exc.epson.co.jp
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