Comments (7)
yorickpeterse
commented on July 21, 2024
I confirmed that 763b8a5 indeed causes the problem by using socket2 from Git as follows:
[dependencies.socket2]
features = ["unix", "reuseport"]
git = "https://github.com/alexcrichton/socket2-rs"
rev = "763b8a59a28324ddcd981a9243375a309eb81679"
Commits prior to this one will all pass, but starting with this commit the accept calls fail.
from socket2.
alexcrichton
commented on July 21, 2024
Thanks for the report! Can you try running strace and/or providing more details to your system? I'm not sure how that comit would have changed the behavior like this.
from socket2.
yorickpeterse
commented on July 21, 2024
@alexcrichton This is on Linux, specifically kernel version 5.2.1. The output of strace is the following:
execve("target/release/playground", ["target/release/playground"], 0x7ffea47435d0 /* 66 vars */) = 0
brk(NULL) = 0x55f121f0f000
arch_prctl(0x3001 /* ARCH_??? */, 0x7ffc30d2f120) = -1 EINVAL (Invalid argument)
access("/etc/ld.so.preload", R_OK) = 0
openat(AT_FDCWD, "/etc/ld.so.preload", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
close(3) = 0
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=225898, ...}) = 0
mmap(NULL, 225898, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f237cfb3000
close(3) = 0
openat(AT_FDCWD, "/usr/lib/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\20\22\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=14512, ...}) = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f237cfb1000
mmap(NULL, 16528, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f237cfac000
mmap(0x7f237cfad000, 4096, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1000) = 0x7f237cfad000
mmap(0x7f237cfae000, 4096, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f237cfae000
mmap(0x7f237cfaf000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f237cfaf000
close(3) = 0
openat(AT_FDCWD, "/usr/lib/librt.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\3606\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=39408, ...}) = 0
mmap(NULL, 43512, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f237cfa1000
mmap(0x7f237cfa4000, 16384, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7f237cfa4000
mmap(0x7f237cfa8000, 8192, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x7000) = 0x7f237cfa8000
mmap(0x7f237cfaa000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x8000) = 0x7f237cfaa000
close(3) = 0
openat(AT_FDCWD, "/usr/lib/libpthread.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\360\201\0\0\0\0\0\0"..., 832) = 832
lseek(3, 824, SEEK_SET) = 824
read(3, "\4\0\0\0\24\0\0\0\3\0\0\0GNU\0\222g\260<=\26\316\256\274\274\324\330\35st\262"..., 68) = 68
fstat(3, {st_mode=S_IFREG|0755, st_size=155904, ...}) = 0
lseek(3, 824, SEEK_SET) = 824
read(3, "\4\0\0\0\24\0\0\0\3\0\0\0GNU\0\222g\260<=\26\316\256\274\274\324\330\35st\262"..., 68) = 68
mmap(NULL, 131528, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f237cf80000
mmap(0x7f237cf87000, 61440, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x7000) = 0x7f237cf87000
mmap(0x7f237cf96000, 20480, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x16000) = 0x7f237cf96000
mmap(0x7f237cf9b000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1a000) = 0x7f237cf9b000
mmap(0x7f237cf9d000, 12744, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f237cf9d000
close(3) = 0
openat(AT_FDCWD, "/usr/lib/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0 0\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=869664, ...}) = 0
mmap(NULL, 103152, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f237cf66000
mmap(0x7f237cf69000, 69632, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7f237cf69000
mmap(0x7f237cf7a000, 16384, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x14000) = 0x7f237cf7a000
mmap(0x7f237cf7e000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x17000) = 0x7f237cf7e000
close(3) = 0
openat(AT_FDCWD, "/usr/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\360o\2\0\0\0\0\0"..., 832) = 832
lseek(3, 64, SEEK_SET) = 64
read(3, "\6\0\0\0\4\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0"..., 784) = 784
lseek(3, 848, SEEK_SET) = 848
read(3, "\4\0\0\0\20\0\0\0\5\0\0\0GNU\0\2\0\0\300\4\0\0\0\3\0\0\0\0\0\0\0", 32) = 32
lseek(3, 880, SEEK_SET) = 880
read(3, "\4\0\0\0\24\0\0\0\3\0\0\0GNU\0\250\257l\201\313(\243{\363\245F\227\v\366B$"..., 68) = 68
fstat(3, {st_mode=S_IFREG|0755, st_size=2133648, ...}) = 0
lseek(3, 64, SEEK_SET) = 64
read(3, "\6\0\0\0\4\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0"..., 784) = 784
lseek(3, 848, SEEK_SET) = 848
read(3, "\4\0\0\0\20\0\0\0\5\0\0\0GNU\0\2\0\0\300\4\0\0\0\3\0\0\0\0\0\0\0", 32) = 32
lseek(3, 880, SEEK_SET) = 880
read(3, "\4\0\0\0\24\0\0\0\3\0\0\0GNU\0\250\257l\201\313(\243{\363\245F\227\v\366B$"..., 68) = 68
mmap(NULL, 1844408, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f237cda3000
mprotect(0x7f237cdc8000, 1654784, PROT_NONE) = 0
mmap(0x7f237cdc8000, 1351680, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x25000) = 0x7f237cdc8000
mmap(0x7f237cf12000, 299008, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x16f000) = 0x7f237cf12000
mmap(0x7f237cf5c000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1b8000) = 0x7f237cf5c000
mmap(0x7f237cf62000, 13496, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f237cf62000
close(3) = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f237cda1000
arch_prctl(ARCH_SET_FS, 0x7f237cda2340) = 0
mprotect(0x7f237cf5c000, 12288, PROT_READ) = 0
mprotect(0x7f237cf7e000, 4096, PROT_READ) = 0
mprotect(0x7f237cf9b000, 4096, PROT_READ) = 0
mprotect(0x7f237cfaa000, 4096, PROT_READ) = 0
mprotect(0x7f237cfaf000, 4096, PROT_READ) = 0
mprotect(0x55f121ded000, 8192, PROT_READ) = 0
mprotect(0x7f237d015000, 4096, PROT_READ) = 0
munmap(0x7f237cfb3000, 225898) = 0
set_tid_address(0x7f237cda2610) = 28324
set_robust_list(0x7f237cda2620, 24) = 0
rt_sigaction(SIGRTMIN, {sa_handler=0x7f237cf87c30, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f237cf93d00}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=0x7f237cf87cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f237cf93d00}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
rt_sigaction(SIGPIPE, {sa_handler=SIG_IGN, sa_mask=[PIPE], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7f237cddd7e0}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
brk(NULL) = 0x55f121f0f000
brk(0x55f121f30000) = 0x55f121f30000
openat(AT_FDCWD, "/proc/self/maps", O_RDONLY|O_CLOEXEC) = 3
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
fstat(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
read(3, "55f121dbf000-55f121dc3000 r--p 0"..., 1024) = 1024
read(3, "b/libc-2.29.so\n7f237cf12000-7f23"..., 1024) = 1024
read(3, "\n7f237cf87000-7f237cf96000 r-xp "..., 1024) = 1024
read(3, "29.so\n7f237cfad000-7f237cfae000 "..., 1024) = 1024
read(3, " [stack]\n7ffc30d4c000-7ffc30d4f"..., 1024) = 170
close(3) = 0
sched_getaffinity(28324, 32, [0, 1, 2, 3]) = 32
rt_sigaction(SIGSEGV, {sa_handler=0x55f121dce070, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_SIGINFO, sa_restorer=0x7f237cf93d00}, NULL, 8) = 0
rt_sigaction(SIGBUS, {sa_handler=0x55f121dce070, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_SIGINFO, sa_restorer=0x7f237cf93d00}, NULL, 8) = 0
sigaltstack(NULL, {ss_sp=NULL, ss_flags=SS_DISABLE, ss_size=0}) = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f237cfe9000
sigaltstack({ss_sp=0x7f237cfe9000, ss_flags=0, ss_size=8192}, NULL) = 0
socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0) = 3
bind(3, {sa_family=AF_UNIX, sun_path=@"dummy"}, 8) = 0
listen(3, 128) = 0
accept4(3, 0x7ffc30d2eab0, 0x80, SOCK_CLOEXEC) = -1 EFAULT (Bad address)
write(2, "thread '", 8thread ') = 8
write(2, "main", 4main) = 4
write(2, "' panicked at '", 15' panicked at ') = 15
write(2, "Failed in accept(2): Os { code: "..., 73Failed in accept(2): Os { code: 14, kind: Other, message: "Bad address" }) = 73
write(2, "', ", 3', ) = 3
write(2, "src/libcore/result.rs", 21src/libcore/result.rs) = 21
write(2, ":", 1:) = 1
write(2, "997", 3997) = 3
write(2, ":", 1:) = 1
write(2, "5", 15) = 1
write(2, "\n", 1
) = 1
write(2, "note: Run with `RUST_BACKTRACE=1"..., 79note: Run with `RUST_BACKTRACE=1` environment variable to display a backtrace.
) = 79
futex(0x7f237cf7f060, FUTEX_WAKE_PRIVATE, 2147483647) = 0
close(3) = 0
sigaltstack({ss_sp=NULL, ss_flags=SS_DISABLE, ss_size=8192}, NULL) = 0
munmap(0x7f237cfe9000, 8192) = 0
exit_group(101) = ?
+++ exited with 101 +++
The interesting bits are:
socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0) = 3
bind(3, {sa_family=AF_UNIX, sun_path=@"dummy"}, 8) = 0
listen(3, 128) = 0
accept4(3, 0x7ffc30d2eab0, 0x80, SOCK_CLOEXEC) = -1 EFAULT (Bad address)
write(2, "thread '", 8thread ') = 8
write(2, "main", 4main) = 4
write(2, "' panicked at '", 15' panicked at ') = 15
write(2, "Failed in accept(2): Os { code: "..., 73Failed in accept(2): Os { code: 14, kind: Other, message: "Bad address" }) = 73
write(2, "', ", 3', ) = 3
write(2, "src/libcore/result.rs", 21src/libcore/result.rs) = 21
write(2, ":", 1:) = 1
write(2, "997", 3997) = 3
write(2, ":", 1:) = 1
write(2, "5", 15) = 1
write(2, "\n", 1
) = 1
write(2, "note: Run with `RUST_BACKTRACE=1"..., 79note: Run with `RUST_BACKTRACE=1` environment variable to display a backtrace.
) = 79
futex(0x7f237cf7f060, FUTEX_WAKE_PRIVATE, 2147483647) = 0
close(3) = 0
sigaltstack({ss_sp=NULL, ss_flags=SS_DISABLE, ss_size=8192}, NULL) = 0
munmap(0x7f237cfe9000, 8192) = 0
exit_group(101) = ?
+++ exited with 101 +++
Using socket2 0.3.9, the strace output is:
execve("target/release/playground", ["target/release/playground"], 0x7ffd6a511570 /* 66 vars */) = 0
brk(NULL) = 0x55c712de6000
arch_prctl(0x3001 /* ARCH_??? */, 0x7ffd0c58aaa0) = -1 EINVAL (Invalid argument)
access("/etc/ld.so.preload", R_OK) = 0
openat(AT_FDCWD, "/etc/ld.so.preload", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
close(3) = 0
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=225898, ...}) = 0
mmap(NULL, 225898, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fe713898000
close(3) = 0
openat(AT_FDCWD, "/usr/lib/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\20\22\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=14512, ...}) = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fe713896000
mmap(NULL, 16528, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fe713891000
mmap(0x7fe713892000, 4096, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1000) = 0x7fe713892000
mmap(0x7fe713893000, 4096, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7fe713893000
mmap(0x7fe713894000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7fe713894000
close(3) = 0
openat(AT_FDCWD, "/usr/lib/librt.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\3606\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=39408, ...}) = 0
mmap(NULL, 43512, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fe713886000
mmap(0x7fe713889000, 16384, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7fe713889000
mmap(0x7fe71388d000, 8192, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x7000) = 0x7fe71388d000
mmap(0x7fe71388f000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x8000) = 0x7fe71388f000
close(3) = 0
openat(AT_FDCWD, "/usr/lib/libpthread.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\360\201\0\0\0\0\0\0"..., 832) = 832
lseek(3, 824, SEEK_SET) = 824
read(3, "\4\0\0\0\24\0\0\0\3\0\0\0GNU\0\222g\260<=\26\316\256\274\274\324\330\35st\262"..., 68) = 68
fstat(3, {st_mode=S_IFREG|0755, st_size=155904, ...}) = 0
lseek(3, 824, SEEK_SET) = 824
read(3, "\4\0\0\0\24\0\0\0\3\0\0\0GNU\0\222g\260<=\26\316\256\274\274\324\330\35st\262"..., 68) = 68
mmap(NULL, 131528, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fe713865000
mmap(0x7fe71386c000, 61440, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x7000) = 0x7fe71386c000
mmap(0x7fe71387b000, 20480, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x16000) = 0x7fe71387b000
mmap(0x7fe713880000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1a000) = 0x7fe713880000
mmap(0x7fe713882000, 12744, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fe713882000
close(3) = 0
openat(AT_FDCWD, "/usr/lib/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0 0\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=869664, ...}) = 0
mmap(NULL, 103152, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fe71384b000
mmap(0x7fe71384e000, 69632, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7fe71384e000
mmap(0x7fe71385f000, 16384, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x14000) = 0x7fe71385f000
mmap(0x7fe713863000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x17000) = 0x7fe713863000
close(3) = 0
openat(AT_FDCWD, "/usr/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\360o\2\0\0\0\0\0"..., 832) = 832
lseek(3, 64, SEEK_SET) = 64
read(3, "\6\0\0\0\4\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0"..., 784) = 784
lseek(3, 848, SEEK_SET) = 848
read(3, "\4\0\0\0\20\0\0\0\5\0\0\0GNU\0\2\0\0\300\4\0\0\0\3\0\0\0\0\0\0\0", 32) = 32
lseek(3, 880, SEEK_SET) = 880
read(3, "\4\0\0\0\24\0\0\0\3\0\0\0GNU\0\250\257l\201\313(\243{\363\245F\227\v\366B$"..., 68) = 68
fstat(3, {st_mode=S_IFREG|0755, st_size=2133648, ...}) = 0
lseek(3, 64, SEEK_SET) = 64
read(3, "\6\0\0\0\4\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0"..., 784) = 784
lseek(3, 848, SEEK_SET) = 848
read(3, "\4\0\0\0\20\0\0\0\5\0\0\0GNU\0\2\0\0\300\4\0\0\0\3\0\0\0\0\0\0\0", 32) = 32
lseek(3, 880, SEEK_SET) = 880
read(3, "\4\0\0\0\24\0\0\0\3\0\0\0GNU\0\250\257l\201\313(\243{\363\245F\227\v\366B$"..., 68) = 68
mmap(NULL, 1844408, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fe713688000
mprotect(0x7fe7136ad000, 1654784, PROT_NONE) = 0
mmap(0x7fe7136ad000, 1351680, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x25000) = 0x7fe7136ad000
mmap(0x7fe7137f7000, 299008, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x16f000) = 0x7fe7137f7000
mmap(0x7fe713841000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1b8000) = 0x7fe713841000
mmap(0x7fe713847000, 13496, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fe713847000
close(3) = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fe713686000
arch_prctl(ARCH_SET_FS, 0x7fe713687340) = 0
mprotect(0x7fe713841000, 12288, PROT_READ) = 0
mprotect(0x7fe713863000, 4096, PROT_READ) = 0
mprotect(0x7fe713880000, 4096, PROT_READ) = 0
mprotect(0x7fe71388f000, 4096, PROT_READ) = 0
mprotect(0x7fe713894000, 4096, PROT_READ) = 0
mprotect(0x55c7116f3000, 8192, PROT_READ) = 0
mprotect(0x7fe7138fa000, 4096, PROT_READ) = 0
munmap(0x7fe713898000, 225898) = 0
set_tid_address(0x7fe713687610) = 28501
set_robust_list(0x7fe713687620, 24) = 0
rt_sigaction(SIGRTMIN, {sa_handler=0x7fe71386cc30, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7fe713878d00}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=0x7fe71386ccd0, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fe713878d00}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
rt_sigaction(SIGPIPE, {sa_handler=SIG_IGN, sa_mask=[PIPE], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fe7136c27e0}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
brk(NULL) = 0x55c712de6000
brk(0x55c712e07000) = 0x55c712e07000
openat(AT_FDCWD, "/proc/self/maps", O_RDONLY|O_CLOEXEC) = 3
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
fstat(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
read(3, "55c7116c4000-55c7116c8000 r--p 0"..., 1024) = 1024
read(3, "b/libc-2.29.so\n7fe7137f7000-7fe7"..., 1024) = 1024
read(3, "\n7fe71386c000-7fe71387b000 r-xp "..., 1024) = 1024
read(3, "29.so\n7fe713892000-7fe713893000 "..., 1024) = 1024
read(3, " [stack]\n7ffd0c5d1000-7ffd0c5d4"..., 1024) = 170
close(3) = 0
sched_getaffinity(28501, 32, [0, 1, 2, 3]) = 32
rt_sigaction(SIGSEGV, {sa_handler=0x55c7116d31b0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_SIGINFO, sa_restorer=0x7fe713878d00}, NULL, 8) = 0
rt_sigaction(SIGBUS, {sa_handler=0x55c7116d31b0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_SIGINFO, sa_restorer=0x7fe713878d00}, NULL, 8) = 0
sigaltstack(NULL, {ss_sp=NULL, ss_flags=SS_DISABLE, ss_size=0}) = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fe7138ce000
sigaltstack({ss_sp=0x7fe7138ce000, ss_flags=0, ss_size=8192}, NULL) = 0
socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0) = 3
bind(3, {sa_family=AF_UNIX, sun_path=@"dummy"}, 8) = 0
listen(3, 128) = 0
futex(0x7fe713895048, FUTEX_WAKE_PRIVATE, 2147483647) = 0
accept4(3, {sa_family=AF_UNIX}, [128->2], SOCK_CLOEXEC) = 4
close(4) = 0
close(3) = 0
sigaltstack({ss_sp=NULL, ss_flags=SS_DISABLE, ss_size=8192}, NULL) = 0
munmap(0x7fe7138ce000, 8192) = 0
exit_group(0) = ?
+++ exited with 0 +++
The part starting after the accept call:
accept4(3, {sa_family=AF_UNIX}, [128->2], SOCK_CLOEXEC) = 4
close(4) = 0
close(3) = 0
sigaltstack({ss_sp=NULL, ss_flags=SS_DISABLE, ss_size=8192}, NULL) = 0
munmap(0x7fe7138ce000, 8192) = 0
exit_group(0) = ?
+++ exited with 0 +++
from socket2.
yorickpeterse
commented on July 21, 2024
The differences in the accept calls are as follows:
0.3.9:
accept4(3, {sa_family=AF_UNIX}, [128->2], SOCK_CLOEXEC) = 4
0.3.10:
accept4(3, 0x7ffc30d2eab0, 0x80, SOCK_CLOEXEC) = -1 EFAULT (Bad address)
from socket2.
yorickpeterse
commented on July 21, 2024
The problem is that the address length is passed incorrectly. This is done as follows:
libc::syscall(
libc::SYS_accept4,
self.fd as libc::c_long,
&mut storage as *mut _ as libc::c_long,
len as libc::c_long,
libc::SOCK_CLOEXEC as libc::c_long,
) as libc::c_intaccept4 is supposed to receive a pointer as the length (a socklen_t * to be exact), but is instead given an int instead. This can be solved using the following patch:
diff --git a/src/sys/unix.rs b/src/sys/unix.rs
index a480a14..e138e68 100644
--- a/src/sys/unix.rs
+++ b/src/sys/unix.rs
@@ -281,7 +281,7 @@ impl Socket {
libc::SYS_accept4,
self.fd as libc::c_long,
&mut storage as *mut _ as libc::c_long,
- len as libc::c_long,
+ &mut len,
libc::SOCK_CLOEXEC as libc::c_long,
) as libc::c_int
});Using this patch, my test no longer fails.
from socket2.
yorickpeterse
commented on July 21, 2024
Oddly enough this seems to already fail in the test suite when running with cargo test --features unix, suggesting that CI might not be running all tests.
from socket2.
yorickpeterse
commented on July 21, 2024
Actually the tests do run everything, and they have already been failing: https://travis-ci.com/alexcrichton/socket2-rs/jobs/220558233
from socket2.
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from socket2.