I think the issue is that the value returned from brk(0) is no longer
page aligned.
$ ./qemu-riscv64 -strace ../exe1
18329 brk(NULL) = 0x0000000000303000
18329 faccessat(AT_FDCWD,"/etc/ld.so.preload",R_OK,0x3010d0) = -1 errno=2 (No
such file or directory)
18329 openat(AT_FDCWD,"/etc/ld.so.cache",O_RDONLY|O_CLOEXEC) = 3
18329 newfstatat(3,"",0x00000040007fe900,0x1000) = 0
18329 mmap(NULL,8799,PROT_READ,MAP_PRIVATE,3,0) = 0x0000004000824000
18329 close(3) = 0
18329 openat(AT_FDCWD,"/lib64/lp64d/libc.so.6",O_RDONLY|O_CLOEXEC) = 3
18329 read(3,0x7fea70,832) = 832
18329 newfstatat(3,"",0x00000040007fe8f0,0x1000) = 0
18329 mmap(NULL,1405128,PROT_EXEC|PROT_READ,MAP_PRIVATE|MAP_DENYWRITE,3,0) =
0x0000004000827000
18329
mmap(0x000000400096d000,20480,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_DENYWRITE|MAP_FIXED,3,0x146000)
= 0x000000400096d000
18329
mmap(0x0000004000972000,49352,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANONYMOUS|MAP_FIXED,-1,0)
= 0x0000004000972000
18329 close(3) = 0
18329 mmap(NULL,8192,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANONYMOUS,-1,0) =
0x000000400097f000
18329 set_tid_address(0x400097f710) = 18329
18329 set_robust_list(0x400097f720,24) = -1 errno=38 (Function not implemented)
18329 mprotect(0x000000400096d000,12288,PROT_READ) = 0
18329 mprotect(0x0000004000820000,4096,PROT_READ) = 0
18329 prlimit64(0,RLIMIT_STACK,NULL,0x00000040007ff4f8) = 0
({rlim_cur=8388608,rlim_max=-1})
18329 munmap(0x0000004000824000,8799) = 0
18329 newfstatat(1,"",0x00000040007ff658,0x1000) = 0
18329 getrandom(0x4000976a40,8,1) = 8
18329 brk(NULL) = 0x0000000000303000
18329 brk(0x0000000000324000) = 0x0000000000324000
18329 write(1,0x3032a0,12)Hello world
= 12
18329 exit_group(0)
$ qemu-riscv64 -strace ../exe1
18369 brk(NULL) = 0x00000000003022e8
18369 faccessat(AT_FDCWD,"/etc/ld.so.preload",R_OK,0x3010d0) = -1 errno=2 (No
such file or directory)
18369 openat(AT_FDCWD,"/etc/ld.so.cache",O_RDONLY|O_CLOEXEC) = 3
18369 newfstatat(3,"",0x00000040007fe8f0,0x1000) = 0
18369 mmap(NULL,8799,PROT_READ,MAP_PRIVATE,3,0) = 0x0000004000824000
18369 close(3) = 0
18369 openat(AT_FDCWD,"/lib64/lp64d/libc.so.6",O_RDONLY|O_CLOEXEC) = 3
18369 read(3,0x7fea60,832) = 832
18369 newfstatat(3,"",0x00000040007fe8e0,0x1000) = 0
18369 mmap(NULL,1405128,PROT_EXEC|PROT_READ,MAP_PRIVATE|MAP_DENYWRITE,3,0) =
0x0000004000827000
18369
mmap(0x000000400096d000,20480,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_DENYWRITE|MAP_FIXED,3,0x146000)
= 0x000000400096d000
18369
mmap(0x0000004000972000,49352,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANONYMOUS|MAP_FIXED,-1,0)
= 0x0000004000972000
18369 close(3) = 0
18369 mmap(NULL,8192,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANONYMOUS,-1,0) =
0x000000400097f000
18369 set_tid_address(0x400097f710) = 18369
18369 set_robust_list(0x400097f720,24) = -1 errno=38 (Function not implemented)
18369 mprotect(0x000000400096d000,12288,PROT_READ) = 0
18369 mprotect(0x0000004000820000,4096,PROT_READ) = 0
18369 prlimit64(0,RLIMIT_STACK,NULL,0x00000040007ff4e8) = 0
({rlim_cur=8388608,rlim_max=-1})
18369 munmap(0x0000004000824000,8799) = 0
18369 newfstatat(1,"",0x00000040007ff648,0x1000) = 0
18369 getrandom(0x4000976a40,8,1) = 8
18369 brk(NULL) = 0x00000000003022e8
18369 brk(0x00000000003232e8)**
ERROR:../accel/tcg/cpu-exec.c:1028:cpu_exec_setjmp: assertion failed: (cpu ==
current_cpu)
Bail out! ERROR:../accel/tcg/cpu-exec.c:1028:cpu_exec_setjmp: assertion failed:
(cpu == current_cpu)
**
ERROR:../accel/tcg/cpu-exec.c:1028:cpu_exec_setjmp: assertion failed: (cpu ==
current_cpu)
Bail out! ERROR:../accel/tcg/cpu-exec.c:1028:cpu_exec_setjmp: assertion failed:
(cpu == current_cpu)
--
Andreas Schwab, SUSE Labs, sch...@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."
