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criu/cr-restore.c contains this:
#if defined(__GLIBC__) && defined(RSEQ_SIG)
static void prep_libc_rseq_info(struct rst_rseq_param *rseq)
{
if (!kdat.has_rseq) {
rseq->rseq_abi_pointer = 0;
return;
}
rseq->rseq_abi_pointer = encode_pointer(__criu_thread_pointer() + __rseq_offset);
rseq->rseq_abi_size = __rseq_size;
rseq->signature = RSEQ_SIG;
}
#else
static void prep_libc_rseq_info(struct rst_rseq_param *rseq)
{
/*
* TODO: handle built-in rseq on other libc'ies like musl
* We can do that using get_rseq_conf kernel feature.
*
* For now we just assume that other libc libraries are
* not registering rseq by default.
*/
rseq->rseq_abi_pointer = 0;
}
#endif
This means that we need to rebuild criu to pick up the new installed glibc headers in glibc-2.34-37.el9 or later, otherwise only the TODO part will be built, and restore can fail due to interference from rseq.
Before rebuilding, please check that glibc-2.34-37.el9 is in the buildroot, or use a side tag.
Hello Chao,
yes, criu-3.17-4.el9 is the build we want. I was not aware that errata had the older build. I just reloaded the correct build in errata. Thanks for spotting this.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory (criu bug fix and enhancement update), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2022:8130
criu/cr-restore.c contains this: #if defined(__GLIBC__) && defined(RSEQ_SIG) static void prep_libc_rseq_info(struct rst_rseq_param *rseq) { if (!kdat.has_rseq) { rseq->rseq_abi_pointer = 0; return; } rseq->rseq_abi_pointer = encode_pointer(__criu_thread_pointer() + __rseq_offset); rseq->rseq_abi_size = __rseq_size; rseq->signature = RSEQ_SIG; } #else static void prep_libc_rseq_info(struct rst_rseq_param *rseq) { /* * TODO: handle built-in rseq on other libc'ies like musl * We can do that using get_rseq_conf kernel feature. * * For now we just assume that other libc libraries are * not registering rseq by default. */ rseq->rseq_abi_pointer = 0; } #endif This means that we need to rebuild criu to pick up the new installed glibc headers in glibc-2.34-37.el9 or later, otherwise only the TODO part will be built, and restore can fail due to interference from rseq. Before rebuilding, please check that glibc-2.34-37.el9 is in the buildroot, or use a side tag.