I am repeatedly recieving the following kernel Oops on my Alpha. I have
read the tracing doco packaged with the kernel sources and unfortunately
only the i386 process seems to be documented.
Dec 15 10:30:04 cartman kernel: Unable to handle kernel paging request at virtual address 0000000000000010
Dec 15 10:30:04 cartman kernel: mysqld(258): Oops 0
Dec 15 10:30:04 cartman kernel: pc = [<fffffc0000347bc0>] ps = 0000
Dec 15 10:30:04 cartman kernel: rp = [<fffffc00003480f8>] sp = fffffc000350dd28
Dec 15 10:30:04 cartman kernel: r0=7 r1=fffffc000353e128 r2=fffffc000353e028 r3=fffffc000049b130
Dec 15 10:30:04 cartman kernel: r8=0
Dec 15 10:30:04 cartman kernel: r16=0 r17=fffffc00021c6990 r18=0 r19=0
Dec 15 10:30:04 cartman kernel: r20=fffffc000350de38 r21=400000 r22=0 r23=1
Dec 15 10:30:04 cartman kernel: r24=1400000000000000 r25=a r26=fffffc00003480f8 r27=fffffc0000333aa8
Dec 15 10:30:04 cartman kernel: r28=0 r29=fffffc0000454b68 r30=fffffc000350dd28
Dec 15 10:30:04 cartman kernel: Code: 414c0001 40220641 a5210108 <a0290010> 482052c1 a6290060 40203121 4421040b f4200005
Dec 15 10:30:06 cartman PAM_pwdb[323]: (su) session opened for user root by anthonyr(uid=0)
While I suspect the procedure is similar - What is the Alpha equivalent of
the EIP value so I can look up the address in the system map. (Or the
equivalent process on the Alpha kernels) ?
Any pointers on locating where this Oops is occurring in an Alpha/AXP
kernel ? There isn't a whole lot of information in the list archives. I
I won't add the system map unless asked as it is over 110K. I will send
it to you if you *really* want it.
I can repeatedly cause the Oops to occur by hitting a MySQL database
through multiple threads (2 or more). However the error does not
occur when only hitting the DB with with only 1 user.
While I suspect there is also a MySQL bug at play here - it shouldn't
result in an Oops. I am trying to tie down the cause with a sample app
which should make tracing a little easier.
FYI:
Linux: Redhat Linux/Alpha 5.2
Kernel: 2.0.36
System: SX164 (533 Mhz)
Other: 3Gb SCSI Disk (Ultra Wide)
64Mb Ram
This is a brand new machine so I can't tell you if the problem existed
prior to Redhat 5.2
Any pointers would be appreciated.
Thanks
Jason.
--- Jason.Ball@wyvern.apana.org.au Jasonb@ce.com.au
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