fche changed the topic of #systemtap to: http://sourceware.org/systemtap; email systemtap@sourceware.org if answers here not timely, conversations may be logged
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<rmilkowski> hi,
<rmilkowski> I've just compiled latest systemtap (git clone) and when try to run it on kernel 5.5.0-rc1 it fails with:
<rmilkowski> Pass 1: parsed user script and 476 library scripts using 223736virt/87064res/5164shr/82316data kb, in 330usr/40sys/370real ms.
<rmilkowski> "/tmp/stapDGSjAK/stap_98c2bcdfcbe08562572bad6d0310dc43_8051_src.c" using 227024virt/92044res/6940shr/85604data kb, in 460usr/220sys/682real ms.
<rmilkowski> list [-Werror]
<rmilkowski> /var/tmp/st/share/systemtap/runtime/stack.c:202:21: error: storage size of ‘trace’ isn’t known
<rmilkowski> errors
<rmilkowski> error::pass4]
<rmilkowski> the issue is with print_backtrace(), if I comment it out then it works fine
<rmilkowski> git head: 0c5c0f434083b106757aaab7578444810816cd85
<rmilkowski> looks like there was a similar issue with linux 5.2 which was fixed back in Aug - commit 49fa913a61e7f2, and it is broken now again with linux 5.5.0-rc1
<rmilkowski> another issue, on older linux kernels:
<rmilkowski> # stap -L ' module("nfsv4").function("nfs4_renew_state")'
<rmilkowski> while on linux 5.5.0-rc1 with latest stap:
<rmilkowski> # /var/tmp/st/bin/stap -L 'module("nfsv4").function("nfs4_renew_state")'
<rmilkowski> the extra variables are not directly accessible (one could do their own casting, etc. but having them present is nice)
<rmilkowski> is it on purpose or is it a bug?
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<fche> rmilkowski,
<fche> hi
<fche> yeah, having to port some runtime parts for newer kernels is a normal thing
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<rmilkowski> fche - you mean both issues? the 2nd one is not a feature I hope...
<fche> talking about the former
<rmilkowski> good, thanks :)
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<irker924> systemtap: fche systemtap.git:refs/heads/master * release-4.2-7-g4ab42ba / tapset/linux/aux_syscalls.stp: tapset: _struct_compat_timex_u() support after renaming to old_timex32 http://tinyurl.com/woetcy6
<irker924> systemtap: fche systemtap.git:refs/heads/master * release-4.2-8-gda0696d / tapset/linux/sysc_truncate.stp: tapset: tp_syscall.truncate typo fix http://tinyurl.com/wao64km
<irker924> systemtap: fche systemtap.git:refs/heads/master * release-4.2-9-g4aac3a4 / tapset/linux/sysc_accept.stp tapset/linux/sysc_accept4.stp tapset/linux/sysc_bind.stp tapset/linux/sysc_connect.stp tapset/linux/sysc_getpeername.stp tapset/linux/sysc_getsockname.stp: tapsets: multiple syscalls: __args type warnings http://tinyurl.com/rg8glka
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