Hi all, sorry to disturb you, I have a question to consult with you why the SIGBUS mask bit is set in the Qemu main thread? do we not want to Qemu main thread to handle the SIGBUS signal? thanks. As shown in [1], the Qemu main thread PID is 30976. "cat /proc/30976/status" in [2], we can see the "SigBlk: 0000000010002240", SIGBUS block bit is 7, so the SIGBUS block bit is set. then the Qemu main thread will not be woken up if there is SIGBUS set to it. thanks!
[1]: # ps -eL | grep "qemu" 30976 30976 pts/7 00:00:00 qemu-system-x86 30976 30977 pts/7 00:00:00 qemu-system-x86 [2] # cat /proc/30976/status Name: qemu-system-x86 State: S (sleeping) Tgid: 30976 Ngid: 0 Pid: 30976 PPid: 34807 TracerPid: 0 Uid: 1000 1000 1000 1000 Gid: 1000 1000 1000 1000 FDSize: 256 Groups: 4 24 27 30 46 108 114 115 1000 NStgid: 30976 NSpid: 30976 NSpgid: 30976 NSsid: 34772 VmPeak: 604260 kB VmSize: 538724 kB VmLck: 0 kB VmPin: 0 kB VmHWM: 34176 kB VmRSS: 34176 kB VmData: 294308 kB VmStk: 136 kB VmExe: 4808 kB VmLib: 36144 kB VmPTE: 528 kB VmPMD: 16 kB VmSwap: 0 kB HugetlbPages: 0 kB Threads: 2 SigQ: 6/514067 SigPnd: 0000000000000000 ShdPnd: 0000000000000000 SigBlk: 0000000010002240 SigIgn: 0000000000001000 SigCgt: 0000000180004243 CapInh: 0000000000000000 CapPrm: 0000000000000000 CapEff: 0000000000000000 CapBnd: 0000003fffffffff CapAmb: 0000000000000000 Seccomp: 0 Cpus_allowed: ffff,ffffffff Cpus_allowed_list: 0-47 Mems_allowed: 00000000,00000003 Mems_allowed_list: 0-1 voluntary_ctxt_switches: 7638 nonvoluntary_ctxt_switches: 3
