From: Zan Lynx Subject: Re: 2.6.17-rc1-mm1, nfsd/reiser4 BUG Date: Tue, 04 Apr 2006 20:27:16 -0600 Message-ID: <1144204036.26812.72.camel@localhost> References: <20060404014504.564bf45a.akpm@osdl.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-J7X/cuQXOp3onmdryQe3" Cc: linux-kernel@vger.kernel.org, nfs@lists.sourceforge.net, reiserfs-list@namesys.com Return-path: list-help: list-unsubscribe: list-post: Errors-To: flx@namesys.com To: Andrew Morton In-Reply-To: <20060404014504.564bf45a.akpm@osdl.org> List-ID: --=-J7X/cuQXOp3onmdryQe3 Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Tue, 2006-04-04 at 01:45 -0700, Andrew Morton wrote: > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.17-rc1/= 2.6.17-rc1-mm1/ While running the following command on a Reiser4 partition mounted on a MD RAID-0 device on top of two SCSI disks: find -type f -print0 | xargs -0 cat > /dev/null I was running this on the local machine, not on the NFS mounts. In fact, the NFS mounts should have had none, or very little, activity. I started getting the following error messages. I had been running 2.6.16-rc5-mm3 and hadn't noticed anything like that, so when I get some time I may try to isolate it, if I can reproduce it. But, in case anyone else knows the problem, here it is BUG: unable to handle kernel NULL pointer dereference at virtual address 00= 000000 printing eip: e0a9a3d2 *pde =3D 00000000 Oops: 0002 [#1] PREEMPT last sysfs file: /devices/pci0000:00/0000:00:00.0/class Modules linked in: it87 hwmon_vid hwmon i2c_isa parport_pc lp parport nfsd = exportfs lockd autofs4 sunrpc iptable_filter ip_tables x_tables binfmt_misc= dm_mod ohci_hcd eepro100 uhci_hcd ehci_hcd sis_agp agpgart i2c_sis630 i2c_= core snd_intel8x0 snd_ac97_codec snd_ac97_bus snd_pcm_oss snd_mixer_oss snd= _pcm snd_timer snd soundcore snd_page_alloc e100 via_rhine sis900 mii crc32= ide_cd cdrom usbcore CPU: 0 EIP: 0060:[] Not tainted VLI EFLAGS: 00010246 (2.6.17-rc1-mm1 #1) EIP is at nfsd_cache_lookup+0x169/0x2e3 [nfsd] eax: 00000000 ebx: dd05a120 ecx: ddc3da38 edx: 00000000 esi: c815319e edi: 00000000 ebp: 00000007 esp: ddfe1f40 ds: 007b es: 007b ss: 0068 Process nfsd (pid: 2170, threadinfo=3Dddfe1000 task=3Dc148a070) Stack: <0>de05d000 ddc3d9e0 00000011 00000003 e0ac9d00 de05d000 e0aa80bc e0= aa7fa0 e0aa80bc e0a93049 c51b9014 de05d064 e0aa80bc e0aa7fa0 de05d000 e0ab2= 7d2 0000003d dd7eaba0 e0aa7fa0 de05d040 c51b9014 000186a3 00000007 c51b9= 008 Call Trace: nfsd_dispatch+0x39/0x16f [nfsd] svc_process+0x38c/= 0x5c6 [sunrpc] nfsd+0x19a/0x315 [nfsd] nfsd+0x0/0x315 [nfsd] kernel_thread_helper+0x5/0xb Code: 28 8b 54 24 0c 89 53 30 8b 53 24 a1 e8 ba 3b c0 89 43 34 89 d0 c1 e8 = 18 31 d0 8b 54 24 04 83 e0 3f 8d 0c 82 8b 03 8b 53 04 85 c0 <89> 02 74 03 8= 9 50 04 8b 01 85 c0 89 03 74 03 89 58 04 89 19 80 EIP: [] nfsd_cache_lookup+0x169/0x2e3 [nfsd] SS:ESP 0068:ddfe1f40 <6>note: nfsd[2170] exited with preempt_count 1 BUG: unable to handle kernel NULL pointer dereference at virtual address 00= 000000 printing eip: e0a9a3d2 *pde =3D 00000000 Oops: 0002 [#2] PREEMPT last sysfs file: /devices/pci0000:00/0000:00:00.0/class Modules linked in: it87 hwmon_vid hwmon i2c_isa parport_pc lp parport nfsd = exportfs lockd autofs4 sunrpc iptable_filter ip_tables x_tables binfmt_misc= dm_mod ohci_hcd eepro100 uhci_hcd ehci_hcd sis_agp agpgart i2c_sis630 i2c_= core snd_intel8x0 snd_ac97_codec snd_ac97_bus snd_pcm_oss snd_mixer_oss snd= _pcm snd_timer snd soundcore snd_page_alloc e100 via_rhine sis900 mii crc32= ide_cd cdrom usbcore CPU: 0 EIP: 0060:[] Not tainted VLI EFLAGS: 00010246 (2.6.17-rc1-mm1 #1) EIP is at nfsd_cache_lookup+0x169/0x2e3 [nfsd] eax: 00000000 ebx: dd05a160 ecx: ddc3da38 edx: 00000000 esi: c815319e edi: 00000000 ebp: 00000007 esp: dff43f40 ds: 007b es: 007b ss: 0068 Process nfsd (pid: 2167, threadinfo=3Ddff43000 task=3Ddf599550) Stack: <0>de7f5000 ddc3d9e0 00000011 00000003 e0ac9d00 de7f5000 e0aa80bc e0= aa7fa0 e0aa80bc e0a93049 d7196014 de7f5064 e0aa80bc e0aa7fa0 de7f5000 e0ab2= 7d2 0000003d dd7eaba0 e0aa7fa0 de7f5040 d7196014 000186a3 00000007 d7196= 008 Call Trace: nfsd_dispatch+0x39/0x16f [nfsd] svc_process+0x38c/= 0x5c6 [sunrpc] nfsd+0x19a/0x315 [nfsd] nfsd+0x0/0x315 [nfsd] kernel_thread_helper+0x5/0xb Code: 28 8b 54 24 0c 89 53 30 8b 53 24 a1 e8 ba 3b c0 89 43 34 89 d0 c1 e8 = 18 31 d0 8b 54 24 04 83 e0 3f 8d 0c 82 8b 03 8b 53 04 85 c0 <89> 02 74 03 8= 9 50 04 8b 01 85 c0 89 03 74 03 89 58 04 89 19 80 EIP: [] nfsd_cache_lookup+0x169/0x2e3 [nfsd] SS:ESP 0068:dff43f40 <6>note: nfsd[2167] exited with preempt_count 1 BUG: unable to handle kernel NULL pointer dereference at virtual address 00= 000000 printing eip: e0a9a3d2 *pde =3D 00000000 Oops: 0002 [#3] PREEMPT last sysfs file: /devices/pci0000:00/0000:00:00.0/class Modules linked in: it87 hwmon_vid hwmon i2c_isa parport_pc lp parport nfsd = exportfs lockd autofs4 sunrpc iptable_filter ip_tables x_tables binfmt_misc= dm_mod ohci_hcd eepro100 uhci_hcd ehci_hcd sis_agp agpgart i2c_sis630 i2c_= core snd_intel8x0 snd_ac97_codec snd_ac97_bus snd_pcm_oss snd_mixer_oss snd= _pcm snd_timer snd soundcore snd_page_alloc e100 via_rhine sis900 mii crc32= ide_cd cdrom usbcore CPU: 0 EIP: 0060:[] Not tainted VLI EFLAGS: 00010246 (2.6.17-rc1-mm1 #1) EIP is at nfsd_cache_lookup+0x169/0x2e3 [nfsd] eax: 00000000 ebx: dd05a1a0 ecx: ddc3da38 edx: 00000000 esi: c815319e edi: 00000000 ebp: 00000007 esp: de555f40 ds: 007b es: 007b ss: 0068 Process nfsd (pid: 2171, threadinfo=3Dde555000 task=3Ddfe23030) Stack: <0>dd7cda00 ddc3d9e0 00000011 00000003 e0ac9d00 dd7cda00 e0aa80bc e0= aa7fa0 e0aa80bc e0a93049 c54bb014 dd7cda64 e0aa80bc e0aa7fa0 dd7cda00 e0ab2= 7d2 0000003d dd7eaba0 e0aa7fa0 dd7cda40 c54bb014 000186a3 00000007 c54bb= 008 Call Trace: nfsd_dispatch+0x39/0x16f [nfsd] svc_process+0x38c/= 0x5c6 [sunrpc] nfsd+0x19a/0x315 [nfsd] nfsd+0x0/0x315 [nfsd] kernel_thread_helper+0x5/0xb Code: 28 8b 54 24 0c 89 53 30 8b 53 24 a1 e8 ba 3b c0 89 43 34 89 d0 c1 e8 = 18 31 d0 8b 54 24 04 83 e0 3f 8d 0c 82 8b 03 8b 53 04 85 c0 <89> 02 74 03 8= 9 50 04 8b 01 85 c0 89 03 74 03 89 58 04 89 19 80 EIP: [] nfsd_cache_lookup+0x169/0x2e3 [nfsd] SS:ESP 0068:de555f40 <6>note: nfsd[2171] exited with preempt_count 1 BUG: unable to handle kernel NULL pointer dereference at virtual address 00= 000000 printing eip: e0a9a3d2 *pde =3D 00000000 Oops: 0002 [#4] PREEMPT last sysfs file: /devices/pci0000:00/0000:00:00.0/class Modules linked in: it87 hwmon_vid hwmon i2c_isa parport_pc lp parport nfsd = exportfs lockd autofs4 sunrpc iptable_filter ip_tables x_tables binfmt_misc= dm_mod ohci_hcd eepro100 uhci_hcd ehci_hcd sis_agp agpgart i2c_sis630 i2c_= core snd_intel8x0 snd_ac97_codec snd_ac97_bus snd_pcm_oss snd_mixer_oss snd= _pcm snd_timer snd soundcore snd_page_alloc e100 via_rhine sis900 mii crc32= ide_cd cdrom usbcore CPU: 0 EIP: 0060:[] Not tainted VLI EFLAGS: 00010246 (2.6.17-rc1-mm1 #1) EIP is at nfsd_cache_lookup+0x169/0x2e3 [nfsd] eax: 00000000 ebx: dd05a1e0 ecx: ddc3da38 edx: 00000000 esi: c815319e edi: 00000000 ebp: 00000007 esp: ddfccf40 ds: 007b es: 007b ss: 0068 Process nfsd (pid: 2166, threadinfo=3Dddfcc000 task=3Ddf488a90) Stack: <0>ddfebe00 ddc3d9e0 00000011 00000003 e0ac9d00 ddfebe00 e0aa80bc e0= aa7fa0 e0aa80bc e0a93049 c5629014 ddfebe64 e0aa80bc e0aa7fa0 ddfebe00 e0ab2= 7d2 0000003d dd7eaba0 e0aa7fa0 ddfebe40 c5629014 000186a3 00000007 c5629= 008 Call Trace: nfsd_dispatch+0x39/0x16f [nfsd] svc_process+0x38c/= 0x5c6 [sunrpc] nfsd+0x19a/0x315 [nfsd] nfsd+0x0/0x315 [nfsd] kernel_thread_helper+0x5/0xb Code: 28 8b 54 24 0c 89 53 30 8b 53 24 a1 e8 ba 3b c0 89 43 34 89 d0 c1 e8 = 18 31 d0 8b 54 24 04 83 e0 3f 8d 0c 82 8b 03 8b 53 04 85 c0 <89> 02 74 03 8= 9 50 04 8b 01 85 c0 89 03 74 03 89 58 04 89 19 80 EIP: [] nfsd_cache_lookup+0x169/0x2e3 [nfsd] SS:ESP 0068:ddfccf40 <6>note: nfsd[2166] exited with preempt_count 1 BUG: unable to handle kernel NULL pointer dereference at virtual address 00= 000000 printing eip: e0a9a3d2 *pde =3D 00000000 Oops: 0002 [#5] PREEMPT last sysfs file: /devices/pci0000:00/0000:00:00.0/class Modules linked in: it87 hwmon_vid hwmon i2c_isa parport_pc lp parport nfsd = exportfs lockd autofs4 sunrpc iptable_filter ip_tables x_tables binfmt_misc= dm_mod ohci_hcd eepro100 uhci_hcd ehci_hcd sis_agp agpgart i2c_sis630 i2c_= core snd_intel8x0 snd_ac97_codec snd_ac97_bus snd_pcm_oss snd_mixer_oss snd= _pcm snd_timer snd soundcore snd_page_alloc e100 via_rhine sis900 mii crc32= ide_cd cdrom usbcore CPU: 0 EIP: 0060:[] Not tainted VLI EFLAGS: 00010246 (2.6.17-rc1-mm1 #1) EIP is at nfsd_cache_lookup+0x169/0x2e3 [nfsd] eax: 00000000 ebx: dd05a220 ecx: ddc3da38 edx: 00000000 esi: c815319e edi: 00000000 ebp: 00000007 esp: de477f40 ds: 007b es: 007b ss: 0068 Process nfsd (pid: 2169, threadinfo=3Dde477000 task=3Ddebdba70) Stack: <0>de05d600 ddc3d9e0 00000011 00000003 e0ac9d00 de05d600 e0aa80bc e0= aa7fa0 e0aa80bc e0a93049 db0ed014 de05d664 e0aa80bc e0aa7fa0 de05d600 e0ab2= 7d2 0000003d dd7eaba0 e0aa7fa0 de05d640 db0ed014 000186a3 00000007 db0ed= 008 Call Trace: nfsd_dispatch+0x39/0x16f [nfsd] svc_process+0x38c/= 0x5c6 [sunrpc] nfsd+0x19a/0x315 [nfsd] nfsd+0x0/0x315 [nfsd] kernel_thread_helper+0x5/0xb Code: 28 8b 54 24 0c 89 53 30 8b 53 24 a1 e8 ba 3b c0 89 43 34 89 d0 c1 e8 = 18 31 d0 8b 54 24 04 83 e0 3f 8d 0c 82 8b 03 8b 53 04 85 c0 <89> 02 74 03 8= 9 50 04 8b 01 85 c0 89 03 74 03 89 58 04 89 19 80 EIP: [] nfsd_cache_lookup+0x169/0x2e3 [nfsd] SS:ESP 0068:de477f40 <6>note: nfsd[2169] exited with preempt_count 1 BUG: unable to handle kernel NULL pointer dereference at virtual address 00= 000000 printing eip: e0a9a3d2 *pde =3D 00000000 Oops: 0002 [#6] PREEMPT last sysfs file: /devices/pci0000:00/0000:00:00.0/class Modules linked in: it87 hwmon_vid hwmon i2c_isa parport_pc lp parport nfsd = exportfs lockd autofs4 sunrpc iptable_filter ip_tables x_tables binfmt_misc= dm_mod ohci_hcd eepro100 uhci_hcd ehci_hcd sis_agp agpgart i2c_sis630 i2c_= core snd_intel8x0 snd_ac97_codec snd_ac97_bus snd_pcm_oss snd_mixer_oss snd= _pcm snd_timer snd soundcore snd_page_alloc e100 via_rhine sis900 mii crc32= ide_cd cdrom usbcore CPU: 0 EIP: 0060:[] Not tainted VLI EFLAGS: 00010246 (2.6.17-rc1-mm1 #1) EIP is at nfsd_cache_lookup+0x169/0x2e3 [nfsd] eax: 00000000 ebx: dd05a260 ecx: ddc3da38 edx: 00000000 esi: c815319e edi: 00000000 ebp: 00000007 esp: ddf70f40 ds: 007b es: 007b ss: 0068 Process nfsd (pid: 2165, threadinfo=3Dddf70000 task=3Ddfe1aa90) Stack: <0>ddfeb200 ddc3d9e0 00000011 00000003 e0ac9d00 ddfeb200 e0aa80bc e0= aa7fa0 e0aa80bc e0a93049 db575014 ddfeb264 e0aa80bc e0aa7fa0 ddfeb200 e0ab2= 7d2 0000003d dd7eaba0 e0aa7fa0 ddfeb240 db575014 000186a3 00000007 db575= 008 Call Trace: nfsd_dispatch+0x39/0x16f [nfsd] svc_process+0x38c/= 0x5c6 [sunrpc] nfsd+0x19a/0x315 [nfsd] nfsd+0x0/0x315 [nfsd] kernel_thread_helper+0x5/0xb Code: 28 8b 54 24 0c 89 53 30 8b 53 24 a1 e8 ba 3b c0 89 43 34 89 d0 c1 e8 = 18 31 d0 8b 54 24 04 83 e0 3f 8d 0c 82 8b 03 8b 53 04 85 c0 <89> 02 74 03 8= 9 50 04 8b 01 85 c0 89 03 74 03 89 58 04 89 19 80 EIP: [] nfsd_cache_lookup+0x169/0x2e3 [nfsd] SS:ESP 0068:ddf70f40 <6>note: nfsd[2165] exited with preempt_count 1 --=20 Zan Lynx --=-J7X/cuQXOp3onmdryQe3 Content-Type: application/pgp-signature; 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