On 10/19/18 2:38 PM, Frank Ch. Eigler wrote:
> Hi -
>
> This commit appears to fix this problem.
>
> https://sourceware.org/git/gitweb.cgi?p=systemtap.git;a=commitdiff;h=8bc64034509474bee3fb7996b2a9e74c8bc27281
>
It tried it, here's that file with the patch:
version = 4
fh = & @nfsd4_compound_state($cstate)->current_fh
if (@defined($u)) {
count = $u->read->rd_length
offset = $u->read->rd_offset
vec = $rqstp->rq_vec
vlen = $u->read->rd_vlen
} else {
count = $read->rd_length
offset = $read->rd_offset
vec = $rqstp->rq_vec
vlen = $read->rd_vlen
}
uid = __rqstp_uid($rqstp)
gid = __rqstp_gid($rqstp)
I installed systemtap-4.0, ran ./configure --prefix=/share/apps/systemtap-4.0;
make; make install
Then ran it:
root@nas-12-1:/share/apps/systemtap-4.0# ./bin/stap
./share/systemtap/examples/network/nfsd-trace.stp
semantic error: while processing probe
module("nfsd").function("nfsd4_commit@/build/linux-39dmni/linux-4.15.0/fs/nfsd/nfs4proc.c:579").call
from: nfsd.proc4.commit from: nfsd.proc.commit from: nfsd.proc.entries from:
nfsd.proc.entries
semantic error: failed to retrieve location attribute for 'commit' [man
error::dwarf]: identifier '$commit' at
/share/apps/systemtap-4.0/share/systemtap/tapset/linux/nfsd.stp:856:10
dieoffset: 0x1b5709 from
/usr/lib/debug/lib/modules/4.15.0-36-generic/kernel/fs/nfsd/nfsd.ko
function: nfsd4_commit at
/build/linux-39dmni/linux-4.15.0/fs/nfsd/nfs4proc.c:581
source: count = $commit->co_count
^
semantic error: failed to retrieve location attribute for 'commit' [man
error::dwarf]: identifier '$commit' at :856:10
dieoffset: 0x1b5709 from
/usr/lib/debug/lib/modules/4.15.0-36-generic/kernel/fs/nfsd/nfsd.ko
function: nfsd4_commit at
/build/linux-39dmni/linux-4.15.0/fs/nfsd/nfs4proc.c:581
source: count = $commit->co_count
^
Pass 2: analysis failed. [man error::pass2]
I'll try building the current git version and see if that helps.
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https://bugs.launchpad.net/bugs/1795545
Title:
Systemtap incompatible with ubuntu 18.04
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