Bug 56054
Summary: | NFS oops when serving files on vfat | ||
---|---|---|---|
Product: | [Retired] Red Hat Linux | Reporter: | Hanno Foest <hurga> |
Component: | kernel | Assignee: | Steve Dickson <steved> |
Status: | CLOSED WONTFIX | QA Contact: | Brock Organ <borgan> |
Severity: | medium | Docs Contact: | |
Priority: | medium | ||
Version: | 7.2 | ||
Target Milestone: | --- | ||
Target Release: | --- | ||
Hardware: | i586 | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | Bug Fix | |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2003-06-07 20:54:41 UTC | Type: | --- |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Embargoed: |
Description
Hanno Foest
2001-11-12 02:08:04 UTC
The ext3 bits are just red herrings: klogd has looked for all the loadable modules it knew about *when it was loaded* to decode the addresses. ext3 was loaded when klogd first ran, but nfsd was not, so klogd has tried to interpret all the nfsd addresses relative to the start of the ext3 module (which was the nearest one in memory). The lines with ext3 in them are followed by the token [nfsd], which is the kernel oops printer indicating that the address really is inside the nfsd module. You can do a "klogd -i" to force klogd to reread its module map once nfsd has been reloaded to avoid this, but that's just cosmetic: the oops as it stands still points quite clearly to nfsd in this case. I've encountered the same issue. Follows is the output from ksymoops ('klogd
-i' was run after nfs was started). The behavior has been 100% reproducable.
Linux thunder 2.4.9-31 #1 Tue Feb 26 06:23:51 EST 2002 i686 unknown
Error (expand_objects): cannot stat(/lib/ext3.o) for ext3
ksymoops: No such file or directory
Error (expand_objects): cannot stat(/lib/jbd.o) for jbd
ksymoops: No such file or directory
Warning (compare_maps): ksyms_base symbol GPLONLY_IO_APIC_get_PCI_irq_vector not
found in System.map. Ignoring ksyms_base entry
Warning (compare_maps): mismatch on symbol partition_name , ksyms_base says
c01b5fc0, System.map says c0156b50. Ignoring ksyms_base entry
Warning (compare_maps): mismatch on symbol nlmsvc_grace_period , lockd says
e097cd34, /lib/modules/2.4.9-31/kernel/fs/lockd/lockd.o says e097c194. Ignoring
/lib/modules/2.4.9-31/kernel/fs/lockd/lockd.o entry
Warning (compare_maps): mismatch on symbol nlmsvc_ops , lockd says e097cd30,
/lib/modules/2.4.9-31/kernel/fs/lockd/lockd.o says e097c190. Ignoring
/lib/modules/2.4.9-31/kernel/fs/lockd/lockd.o entry
Warning (compare_maps): mismatch on symbol nlmsvc_timeout , lockd says
e097cd38, /lib/modules/2.4.9-31/kernel/fs/lockd/lockd.o says e097c198. Ignoring
/lib/modules/2.4.9-31/kernel/fs/lockd/lockd.o entry
Warning (compare_maps): mismatch on symbol nfs_debug , sunrpc says e096edc0,
/lib/modules/2.4.9-31/kernel/net/sunrpc/sunrpc.o says e096eaa0. Ignoring
/lib/modules/2.4.9-31/kernel/net/sunrpc/sunrpc.o entry
Warning (compare_maps): mismatch on symbol nfsd_debug , sunrpc says e096edc4,
/lib/modules/2.4.9-31/kernel/net/sunrpc/sunrpc.o says e096eaa4. Ignoring
/lib/modules/2.4.9-31/kernel/net/sunrpc/sunrpc.o entry
Warning (compare_maps): mismatch on symbol nlm_debug , sunrpc says e096edc8,
/lib/modules/2.4.9-31/kernel/net/sunrpc/sunrpc.o says e096eaa8. Ignoring
/lib/modules/2.4.9-31/kernel/net/sunrpc/sunrpc.o entry
Warning (compare_maps): mismatch on symbol rpc_debug , sunrpc says e096edbc,
/lib/modules/2.4.9-31/kernel/net/sunrpc/sunrpc.o says e096ea9c. Ignoring
/lib/modules/2.4.9-31/kernel/net/sunrpc/sunrpc.o entry
Warning (compare_maps): mismatch on symbol rpc_garbage_args , sunrpc says
e096ed9c, /lib/modules/2.4.9-31/kernel/net/sunrpc/sunrpc.o says e096ea7c.
Ignoring /lib/modules/2.4.9-31/kernel/net/sunrpc/sunrpc.o entry
Warning (compare_maps): mismatch on symbol rpc_success , sunrpc says e096ed8c,
/lib/modules/2.4.9-31/kernel/net/sunrpc/sunrpc.o says e096ea6c. Ignoring
/lib/modules/2.4.9-31/kernel/net/sunrpc/sunrpc.o entry
Warning (compare_maps): mismatch on symbol rpc_system_err , sunrpc says
e096eda0, /lib/modules/2.4.9-31/kernel/net/sunrpc/sunrpc.o says e096ea80.
Ignoring /lib/modules/2.4.9-31/kernel/net/sunrpc/sunrpc.o entry
Warning (compare_maps): mismatch on symbol xdr_one , sunrpc says e096ed84,
/lib/modules/2.4.9-31/kernel/net/sunrpc/sunrpc.o says e096ea64. Ignoring
/lib/modules/2.4.9-31/kernel/net/sunrpc/sunrpc.o entry
Warning (compare_maps): mismatch on symbol xdr_two , sunrpc says e096ed88,
/lib/modules/2.4.9-31/kernel/net/sunrpc/sunrpc.o says e096ea68. Ignoring
/lib/modules/2.4.9-31/kernel/net/sunrpc/sunrpc.o entry
Warning (compare_maps): mismatch on symbol xdr_zero , sunrpc says e096ed80,
/lib/modules/2.4.9-31/kernel/net/sunrpc/sunrpc.o says e096ea60. Ignoring
/lib/modules/2.4.9-31/kernel/net/sunrpc/sunrpc.o entry
Warning (map_ksym_to_module): cannot match loaded module ext3 to a unique module
object. Trace may not be reliable.
Mar 20 03:36:42 thunder kernel: Unable to handle kernel NULL pointer dereference
at virtual address 00000008
Mar 20 03:36:42 thunder kernel: e0981350
Mar 20 03:36:42 thunder kernel: *pde = 00000000
Mar 20 03:36:42 thunder kernel: Oops: 0000
Mar 20 03:36:42 thunder kernel: CPU: 0
Mar 20 03:36:42 thunder kernel: EIP:
0010:[nls_iso8859-1:__insmod_nls_iso8859-1_O/lib/modules/2.4.9-31/kernel/fs/nls+-81072/96]
Not tainted
Mar 20 03:36:42 thunder kernel: EIP: 0010:[<e0981350>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
Mar 20 03:36:42 thunder kernel: EFLAGS: 00010217
Mar 20 03:36:42 thunder kernel: eax: 00000000 ebx: 00000000 ecx: 00000005
edx: 00000003
Mar 20 03:36:42 thunder kernel: esi: dcd77000 edi: 00000000 ebp: c1c805c0
esp: dbb97ddc
Mar 20 03:36:42 thunder kernel: ds: 0018 es: 0018 ss: 0018
Mar 20 03:36:42 thunder kernel: ds: 0018 es: 0018 ss: 0018
Mar 20 03:36:42 thunder kernel: Process nfsd (pid: 1678, stackpage=dbb97000)
Mar 20 03:36:42 thunder kernel: Stack: c03669e0 00000005 dbf81a00 dbf80c04
dcfea000 e098174a dcd77000 dbf80c14
Mar 20 03:36:42 thunder kernel: 00000005 00000003 00000001 00000000
dbf80c14 11270000 dbf80c04 dbb97e64
Mar 20 03:36:42 thunder kernel: 00000000 dd620000 00000000 dbf81a00
dbb97ecc 00008000 dbf80c04 e0982ad7
Mar 20 03:36:42 thunder kernel: Call Trace:
[nls_iso8859-1:__insmod_nls_iso8859-1_O/lib/modules/2.4.9-31/kernel/fs/nls+-80054/96]
__insmod_nfsd_S.text_L52992 [nfsd] 0x26ea
Mar 20 03:36:42 thunder kernel: Call Trace: [<e098174a>]
__insmod_nfsd_S.text_L52992 [nfsd] 0x26ea
Mar 20 03:36:42 thunder kernel: [<e0982ad7>] __insmod_nfsd_S.text_L52992 [nfsd]
0x3a77
Mar 20 03:36:42 thunder kernel: [<c01d1e0b>] ip_rcv [kernel] 0x35b
Mar 20 03:36:42 thunder kernel: [<e098300d>] __insmod_nfsd_S.text_L52992 [nfsd]
0x3fad
Mar 20 03:36:42 thunder kernel: [<c01c2e5a>] net_rx_action [kernel] 0x1aa
Mar 20 03:36:42 thunder kernel: [<c010833a>] handle_IRQ_event [kernel] 0x3a
Mar 20 03:36:42 thunder kernel: [<c011ad7b>] do_softirq [kernel] 0x4b
Mar 20 03:36:42 thunder kernel: [<c01084ec>] do_IRQ [kernel] 0x9c
Mar 20 03:36:42 thunder kernel: [<c0212e4c>] call_do_IRQ [kernel] 0x5
Mar 20 03:36:42 thunder kernel: [<e0988260>] __insmod_nfsd_S.text_L52992 [nfsd]
0x9200
Mar 20 03:36:42 thunder kernel: [<e09902c0>] __insmod_nfsd_S.data_L2208 [nfsd]
0x680
Mar 20 03:36:42 thunder kernel: [<e09902c0>] __insmod_nfsd_S.data_L2208 [nfsd]
0x680
Mar 20 03:36:42 thunder kernel: [<e097f571>] __insmod_nfsd_S.text_L52992 [nfsd]
0x511
Mar 20 03:36:42 thunder kernel: [<e0965529>] svc_process_R10a85615 [sunrpc]
0x349
Mar 20 03:36:42 thunder kernel: [<e098fc58>] __insmod_nfsd_S.data_L2208 [nfsd]
0x18
Mar 20 03:36:42 thunder kernel: [<e098fc78>] __insmod_nfsd_S.data_L2208 [nfsd]
0x38
Mar 20 03:36:42 thunder kernel: [<e097f367>] __insmod_nfsd_S.text_L52992 [nfsd]
0x307
Mar 20 03:36:42 thunder kernel: [<c0105746>] kernel_thread [kernel] 0x26
Mar 20 03:36:42 thunder kernel: [<e097f190>] __insmod_nfsd_S.text_L52992 [nfsd]
0x130
Mar 20 03:36:42 thunder kernel: Code: 8b 47 08 bb 8c ff ff ff 85 c0 0f 84 6d 01
00 00 0f b7 40 2a
>>EIP; e0981350 <[nfsd]find_fh_dentry+160/320> <=====
Trace; e098174a <[nfsd]fh_verify+23a/450>
Trace; e0982ad7 <[nfsd]nfsd_open+27/1e0>
Trace; c01d1e0b <ip_rcv+35b/390>
Trace; e098300d <[nfsd]nfsd_write+4d/2d0>
Trace; c01c2e5a <net_rx_action+1aa/270>
Trace; c010833a <handle_IRQ_event+3a/70>
Trace; c011ad7b <do_softirq+4b/90>
Trace; c01084ec <do_IRQ+9c/b0>
Trace; c0212e4c <call_do_IRQ+5/d>
Trace; e0988260 <[nfsd]nfsd3_proc_write+f0/110>
Trace; e09902c0 <[nfsd]nfsd_procedures3+e0/2c0>
Trace; e09902c0 <[nfsd]nfsd_procedures3+e0/2c0>
Trace; e097f571 <[nfsd]nfsd_dispatch+c1/190>
Trace; e0965529 <[sunrpc]svc_process+349/510>
Trace; e098fc58 <[nfsd]nfsd_version3+0/10>
Trace; e098fc78 <[nfsd]nfsd_program+0/18>
Trace; e097f367 <[nfsd]nfsd+1d7/320>
Trace; c0105746 <kernel_thread+26/30>
Trace; e097f190 <[nfsd]nfsd+0/320>
Code; e0981350 <[nfsd]find_fh_dentry+160/320>
00000000 <_EIP>:
Code; e0981350 <[nfsd]find_fh_dentry+160/320> <=====
0: 8b 47 08 mov 0x8(%edi),%eax <=====
Code; e0981353 <[nfsd]find_fh_dentry+163/320>
3: bb 8c ff ff ff mov $0xffffff8c,%ebx
Code; e0981358 <[nfsd]find_fh_dentry+168/320>
8: 85 c0 test %eax,%eax
Code; e098135a <[nfsd]find_fh_dentry+16a/320>
a: 0f 84 6d 01 00 00 je 17d <_EIP+0x17d> e09814cd
<[nfsd]find_fh_dentry+2dd/320>
Code; e0981360 <[nfsd]find_fh_dentry+170/320>
10: 0f b7 40 2a movzwl 0x2a(%eax),%eax
17 warnings and 2 errors issued. Results may not be reliable.
*waves* Hi, batman!
--gleep
last I checked nfs in 2.4.X does not support exporting vfat even remotely sanely. I'm fairly certain neilb turned it off intentionally b/c there was no REAL way of counting on locking working at all. if its on in 2.4.9.X it most likely won't be available in 2.4.18 in TNV. I would close this WONTFIX/CANTFIX -sv |