thread 'main' panicked at 'prehook: Missed expected preemption!..'

[mrichtarsky]

Describe the bug

thread 'main' panicked at 'prehook: Missed expected preemption! Clock_value: 29407230. Stepped forward 27577123 RCBs, but should have trapped at 17690825'

• a program hangs under hermit
• hermit panics internally
• hermit runs the program but divergence (nondeterminism) occurs

To Reproduce
Cannot share binary unfortunately. However it is linked against a basis library with quite some changes to standard glibc (lots of hooks). A simple program works. So I suspect that library to be the problem.

Expected behavior
Program executes successfully.

Environment

• Linux kernel version (uname -a): Linux ld6216 4.12.14-197.45-default #1 SMP Thu Jun 4 11:06:04 UTC 2020 (2b6c749) x86_64 x86_64 x86_64 GNU/Linux
• CPU version (/proce/cpuinfo): Intel(R) Xeon(R) Silver 4116 CPU @ 2.10GHz

processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 85
model name      : 
stepping        : 4
microcode       : 0x200005a
cpu MHz         : 2100.000
cache size      : 16896 KB
physical id     : 0
siblings        : 24
core id         : 0
cpu cores       : 12
apicid          : 0
initial apicid  : 0
fpu             : yes
fpu_exception   : yes
cpuid level     : 22
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb cat_l3 cdp_l3 invpcid_single pti ssbd mba ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm cqm mpx rdt_a avx512f avx512dq rdseed adx smap clflushopt clwb intel_pt avx512cd avx512bw avx512vl xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local dtherm ida arat pln pts pku ospke flush_l1d
bugs            : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs taa itlb_multihit
bogomips        : 4200.00
clflush size    : 64
cache_alignment : 64
address sizes   : 46 bits physical, 48 bits virtual
power management:

• Linux distro flavor (/etc/issue, /etc/redhat-release):

NAME="SLES"
VERSION="15-SP1"
VERSION_ID="15.1"
PRETTY_NAME="SUSE Linux Enterprise Server 15 SP1"
ID="sles"
ID_LIKE="suse"
ANSI_COLOR="0;32"
CPE_NAME="cpe:/o:suse:sles:15:sp1"

Additional context
Logs attached.
hermit.log