Messages in this thread | | | Date | Tue, 10 Jun 2003 09:28:08 -0700 | From | "Martin J. Bligh" <> | Subject | [Bug 796] New: Kernel Oops with nfsd |
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http://bugme.osdl.org/show_bug.cgi?id=796
Summary: Kernel Oops with nfsd. Kernel Version: 2.5.70 Status: NEW Severity: normal Owner: trond.myklebust@fys.uio.no Submitter: robbiew@us.ibm.com
Distribution: SuSE 8.0
Hardware Environment: ------ | Server| ------ # cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 10 model name : Pentium III (Cascades) stepping : 1 cpu MHz : 702.199 cache size : 1024 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse bogomips : 1384.44
# cat /proc/meminfo MemTotal: 4325580 kB MemFree: 3239332 kB Buffers: 615592 kB Cached: 316972 kB SwapCached: 0 kB Active: 95640 kB Inactive: 852508 kB HighTotal: 3465188 kB HighFree: 3129856 kB LowTotal: 860392 kB LowFree: 109476 kB SwapTotal: 2097136 kB SwapFree: 2097136 kB Dirty: 1868 kB Writeback: 0 kB Mapped: 21368 kB Slab: 59364 kB Committed_AS: 31852 kB PageTables: 452 kB VmallocTotal: 114680 kB VmallocUsed: 2240 kB VmallocChunk: 112440 kB
# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda3 25G 4.5G 19G 19% / /dev/sda1 23M 11M 10M 50% /boot /dev/sdb1 33G 642M 31G 2% /nfsserver/ext3 /dev/sdc1 34G 96M 33G 1% /nfsserver/jfs /dev/sdd1 34G 245M 33G 1% /nfsserver/reiserfs
# ifconfig eth0 eth0 Link encap:Ethernet HWaddr 00:06:29:F6:3D:E6 inet addr:9.3.192.6 Bcast:9.3.192.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:201340 errors:0 dropped:0 overruns:0 frame:0 TX packets:6874 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:135857677 (129.5 Mb) TX bytes:639480 (624.4 Kb) Interrupt:11 Base address:0x2200
------- | Client1| ------- # cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 8 model name : Pentium III (Coppermine) stepping : 10 cpu MHz : 864.111 cache size : 256 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse bogomips : 1708.03
# cat /proc/meminfo MemTotal: 252752 kB MemFree: 3384 kB Buffers: 20132 kB Cached: 200284 kB SwapCached: 0 kB Active: 101644 kB Inactive: 123984 kB HighTotal: 0 kB HighFree: 0 kB LowTotal: 252752 kB LowFree: 3384 kB SwapTotal: 530104 kB SwapFree: 530100 kB Dirty: 0 kB Writeback: 0 kB Mapped: 8904 kB Slab: 21400 kB Committed_AS: 19764 kB PageTables: 284 kB VmallocTotal: 778168 kB VmallocUsed: 928 kB VmallocChunk: 777240 kB HugePages_Total: 0 HugePages_Free: 0 Hugepagesize: 4096 kB
# df -h Filesystem Size Used Avail Use% Mounted on /dev/hda2 27G 3.7G 22G 15% /
# ifconfig eth0 eth0 Link encap:Ethernet HWaddr 00:02:55:2A:F2:CC inet addr:9.3.192.48 Bcast:9.3.192.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:204155 errors:0 dropped:0 overruns:0 frame:0 TX packets:5563 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:136761161 (130.4 Mb) TX bytes:429949 (419.8 Kb) Interrupt:20 Base address:0x74c0 Memory:febff000-febff038
------- | Client2| ------- # cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 8 model name : Pentium III (Coppermine) stepping : 10 cpu MHz : 864.111 cache size : 256 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse bogomips : 1708.03
# cat /proc/meminfo MemTotal: 252744 kB MemFree: 179880 kB Buffers: 3244 kB Cached: 54900 kB SwapCached: 0 kB Active: 21116 kB Inactive: 41748 kB HighTotal: 0 kB HighFree: 0 kB LowTotal: 252744 kB LowFree: 179880 kB SwapTotal: 530136 kB SwapFree: 530136 kB Dirty: 16 kB Writeback: 0 kB Mapped: 8324 kB Slab: 7592 kB Committed_AS: 19188 kB PageTables: 260 kB VmallocTotal: 778204 kB VmallocUsed: 1264 kB VmallocChunk: 776940 kB
# df -h Filesystem Size Used Avail Use% Mounted on /dev/hda2 3.8G 3.0G 702M 82% / /dev/hda1 99M 8.5M 85M 10% /boot
# ifconfig eth0 eth0 Link encap:Ethernet HWaddr 00:02:55:2A:F9:21 inet addr:9.3.192.50 Bcast:9.3.192.255 Mask:255.255.255.0 UP BROADCAST NOTRAILERS RUNNING MULTICAST MTU:1500 Metric:1 RX packets:10439 errors:0 dropped:0 overruns:0 frame:0 TX packets:2117 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:7628067 (7.2 Mb) TX bytes:188451 (184.0 Kb) Interrupt:5 Base address:0x78c0 Memory:febff000-febff038
Software Environment: ------ | Server| ------ Gnu C 2.95.3 Gnu make 3.79.1 util-linux 2.11n mount 2.11n module-init-tools 2.4.12 e2fsprogs 1.26 jfsutils 1.0.15 xfsprogs 2.0.0 PPP 2.4.1 isdn4k-utils 3.1pre4 Linux C Library x 1 root root 1394238 Mar 23 2002 /lib/libc.so.6 Dynamic linker (ldd) 2.2.5 Procps 3.1.5 Net-tools 1.60 Kbd 1.06 Sh-utils 2.0 No Modules Loaded
------- | Client1| ------- Gnu C 2.95.3 Gnu make 3.79.1 util-linux 2.11z mount 2.11z module-init-tools 2.4.12 e2fsprogs 1.26 jfsutils 1.0.15 xfsprogs 2.0.0 PPP 2.4.1 isdn4k-utils 3.1pre4 Linux C Library x 1 root root 1394238 Mar 23 2002 /lib/libc.so.6 Dynamic linker (ldd) 2.2.5 Procps 3.1.5 Net-tools 1.60 Kbd 1.06 Sh-utils 2.0 No Modules Loaded
------- | Client2| ------- Gnu C 2.95.3 Gnu make 3.79.1 util-linux 2.11n mount 2.11n module-init-tools 2.4.12 e2fsprogs 1.26 jfsutils 1.0.15 xfsprogs 2.0.0 PPP 2.4.1 isdn4k-utils 3.1pre4 Linux C Library x 1 root root 1394238 Mar 23 2002 /lib/libc.so.6 Dynamic linker (ldd) 2.2.5 Procps 2.0.7 Net-tools 1.60 Kbd 1.06 Sh-utils 2.0 No Modules Loaded
Problem Description:
While running an intensive NFS test (see http://ltp.sf.net/nfs) I was able to create the following kernel oops on the server: ------------------------------------ Code: Bad EIP value. <1>Unable to handle kernel NULL pointer dereference at virtual address 00000000 printing eip: 00000000 *pde = 36d49001 Oops: 0000 [#55] CPU: 0 EIP: 0060:[<00000000>] Not tainted EFLAGS: 00010202 EIP is at 0x0 eax: 00000000 ebx: ebc6c628 ecx: 00000000 edx: f7d4fc8c esi: f747b98c edi: 00007734 ebp: f383fc28 esp: f383fc14 ds: 007b es: 007b ss: 0068 Process nfsd (pid: 1709, threadinfo=f383e000 task=f38530c0) Stack: c01d2bc2 ebc6c628 00000001 f383fea4 f747b98c f383fc3c c01d2c2e f747b98c 00030060 00007734 f383fe80 c01d1ddf f747b98c f389d158 00000001 f383fea4 11270000 f383fd8c 00000000 c03ff704 f383fe4c 00000000 00000247 c0574728 Call Trace: [<c01d2bc2>] export_iget+0x3e/0x94 [<c01d2c2e>] get_object+0x16/0x1c [<c01d1ddf>] find_exported_dentry+0x3f/0xc90 [<c03ff704>] ip_generic_getfrag+0x0/0x8c [<c041f290>] udp_sendmsg+0xaa8/0xb48 [<c03e7183>] sock_alloc_send_skb+0x1b/0x24 [<c03ffa23>] ip_append_data+0x293/0x660 [<c041f136>] udp_sendmsg+0x94e/0xb48 [<c03ff704>] ip_generic_getfrag+0x0/0x8c [<c041f290>] udp_sendmsg+0xaa8/0xb48 [<c04272e8>] inet_sendmsg+0x40/0x48 [<c03e41e6>] sock_sendmsg+0x86/0xa4 [<c04272e8>] inet_sendmsg+0x40/0x48 [<c011591d>] kmap+0x2d/0x34 [<c03e7551>] sock_no_sendpage+0x71/0x90 [<c03e7562>] sock_no_sendpage+0x82/0x90 [<c01d9d18>] exp_find_key+0x4c/0x5c [<c01d2e0e>] export_decode_fh+0x66/0x6f [<c01d4f30>] nfsd_acceptable+0x0/0x1ac [<c01d5426>] fh_verify+0x34a/0x4f0 [<c01d4f30>] nfsd_acceptable+0x0/0x1ac [<c01d6874>] nfsd_access+0x28/0xf4 [<c01dd489>] nfsd3_proc_access+0xc1/0xd0 [<c01d3532>] nfsd_dispatch+0xde/0x19c [<c044a79d>] svc_process+0x3d9/0x66c [<c01d321e>] nfsd+0x24e/0x484 [<c01d2fd0>] nfsd+0x0/0x484 [<c0108c51>] kernel_thread_helper+0x5/0xc ------------------------------------
Steps to reproduce: See test plan located at http://ltp.sf.net/nfs
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