[Samba] smbfs crash

Osma Ahvenlampi oa at iki.fi
Thu May 2 23:40:03 GMT 2002


Hello,

This is a bug I can easily repeat by mounting a share from a Win2k
Server, and running two recursive finds on it simultaneously. More
annoyingly, accessing the share with Nautilus can cause the crash very
quickly (with find, it takes a bit longer and needs a fairly large
share).. Sounds like a race condition of some kind. Usually one of the
programs accessing the share segfaults, and the others stop forever. The
share can not be umounted after this happens, so the only way to recover
completely is to reboot the machine.

Kernel 2.4.18, Samba 2.2.1a (Red Hat 7.2). The tainted kernel is
probably because of VMware's two kernel modules. The server runs Win2k
SP2. The kernel also has the pre-empt patch, however I believe I've seen
this without that patch as well.

Please Cc me, since I'm not subscribed to the list. Thanks.

Unable to handle kernel paging request at virtual address e0000000
 printing eip:
e11f9af0
*pde = 00000000
Oops: 0000
CPU:    0
EIP:    0010:[<e11f9af0>]    Tainted: PF
EFLAGS: 00010293
eax: 040ef34c   ebx: a2874a74   ecx: e8cd13fd   edx: 9a6963dc
esi: e0000000   edi: d058be30   ebp: d058bec4   esp: d058bdf0
ds: 0018   es: 0018   ss: 0018
Process find (pid: 7884, stackpage=d058b000)
Stack: 00000000 00000000 00000000 d763aa00 cf7eaba0 00000000 00555543
64136433 
       00000000 00000000 c84f1000 00000009 00000000 00000000 00000001
0000000b 
       d058be94 00000000 e12014dc c0142d00 c8cd1000 e11f82d1 ce772aa0
d058bfa0 
Call Trace: [<c0142d00>] [<e11f82d1>] [<c0142d00>] [<e11f9235>]
[<c0142d00>] 
   [<c0142d00>] [<c0142886>] [<c0142d00>] [<c0142e8f>] [<c0142d00>]
[<c01070bb>] 

Code: 0f b6 06 49 46 89 c2 c1 e8 04 c1 e2 04 8d 14 1a 01 c2 83 f9 
 
Module                  Size  Used by    Tainted: PF 
smbfs                  32544   1 (autoclean)
ircomm-tty             19424   1 (autoclean)
ircomm                  7228   0 (autoclean) [ircomm-tty]
agpgart                16896   0 (unused)
vmnet                  18368   2
vmmon                  18708   5
nsc-ircc               10488   1
irda                   85548   0 [ircomm-tty ircomm nsc-ircc]
3c59x                  25544   1
af_packet              12968   1 (autoclean)
ipx                    16980   0 (autoclean)
ipchains               33736  13
serial                 43648   1 (autoclean)
nls_iso8859-1           2816   2 (autoclean)
nls_cp437               4320   2 (autoclean)
vfat                    9756   1 (autoclean)
fat                    31224   0 (autoclean) [vfat]
ext3                   58816   1 (autoclean)
jbd                    37752   1 (autoclean) [ext3]
ide-cd                 26624   0
cdrom                  27872   0 (autoclean) [ide-cd]
floppy                 47552   0 (autoclean)
maestro3               25800   0
soundcore               3844   2 [maestro3]
ac97_codec              9536   0 [maestro3]
usb-uhci               22436   0 (unused)
usbcore                51488   1 [usb-uhci]
rtc                     6392   1 (autoclean)
unix                   15524 442 (autoclean)


-- 
Osma Ahvenlampi <oa at iki.fi>
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