While attempting to use valgrind on my x86_64 samba binary, I get the following unhandled syscall warnings: --00:06:17:34.954 4224-- WARNING: unhandled syscall: 125 ==00:06:17:34.954 4224== at 0x7C79C27: capget (in /usr/lib/debug/libc-2.7.so) ==00:06:17:34.954 4224== by 0x4031241: cap_get_proc (in /lib/libcap.so.1.10) ==00:06:17:34.954 4224== by 0x59DEB7: set_process_capability (in /usr/sbin/smbd) ==00:06:17:34.954 4224== by 0x59E06D: set_effective_capability (in /usr/sbin/smbd) ==00:06:17:34.954 4224== by 0x5DCFA3: linux_setlease (in /usr/sbin/smbd) ==00:06:17:34.954 4224== by 0x4AFC5C: vfswrap_linux_setlease (in /usr/sbin/smbd) ==00:06:17:34.954 4224== by 0x5DCD50: linux_set_kernel_oplock (in /usr/sbin/smbd) ==00:06:17:34.954 4224== by 0x5DA586: set_file_oplock (in /usr/sbin/smbd) ==00:06:17:34.954 4224== by 0x4907CA: open_file_ntcreate (in /usr/sbin/smbd) ==00:06:17:34.954 4224== by 0x491529: create_file_unixpath (in /usr/sbin/smbd) ==00:06:17:34.954 4224== by 0x491D7F: create_file (in /usr/sbin/smbd) ==00:06:17:34.954 4224== by 0x783622: reply_ntcreate_and_X (in /usr/sbin/smbd) ==00:06:17:34.954 4224== by 0x4A264D: switch_message (in /usr/sbin/smbd) ==00:06:17:34.954 4224== by 0x4A40F7: smbd_process (in /usr/sbin/smbd) ==00:06:17:34.954 4224== by 0x471842: main (in /usr/sbin/smbd) --00:06:17:34.954 4224-- You may be able to write your own handler. --00:06:17:34.954 4224-- Read the file README_MISSING_SYSCALL_OR_IOCTL. --00:06:17:34.954 4224-- Nevertheless we consider this a bug. Please report --00:06:17:34.954 4224-- it at http://valgrind.org/support/bug_reports.html. --00:06:17:34.963 4224-- WARNING: unhandled syscall: 126 ==00:06:17:34.963 4224== at 0x7C79C57: capset (in /usr/lib/debug/libc-2.7.so) ==00:06:17:34.963 4224== by 0x403129D: cap_set_proc (in /lib/libcap.so.1.10) ==00:06:17:34.963 4224== by 0x59E03E: set_process_capability (in /usr/sbin/smbd) ==00:06:17:34.963 4224== by 0x59E06D: set_effective_capability (in /usr/sbin/smbd) ==00:06:17:34.963 4224== by 0x5DCFA3: linux_setlease (in /usr/sbin/smbd) ==00:06:17:34.963 4224== by 0x4AFC5C: vfswrap_linux_setlease (in /usr/sbin/smbd) ==00:06:17:34.963 4224== by 0x5DCD50: linux_set_kernel_oplock (in /usr/sbin/smbd) ==00:06:17:34.964 4224== by 0x5DA586: set_file_oplock (in /usr/sbin/smbd) ==00:06:17:34.964 4224== by 0x4907CA: open_file_ntcreate (in /usr/sbin/smbd) ==00:06:17:34.964 4224== by 0x491529: create_file_unixpath (in /usr/sbin/smbd) ==00:06:17:34.964 4224== by 0x491D7F: create_file (in /usr/sbin/smbd) ==00:06:17:34.964 4224== by 0x783622: reply_ntcreate_and_X (in /usr/sbin/smbd) ==00:06:17:34.964 4224== by 0x4A264D: switch_message (in /usr/sbin/smbd) ==00:06:17:34.964 4224== by 0x4A40F7: smbd_process (in /usr/sbin/smbd) ==00:06:17:34.964 4224== by 0x471842: main (in /usr/sbin/smbd) --00:06:17:34.964 4224-- You may be able to write your own handler. --00:06:17:34.964 4224-- Read the file README_MISSING_SYSCALL_OR_IOCTL. --00:06:17:34.964 4224-- Nevertheless we consider this a bug. Please report --00:06:17:34.964 4224-- it at http://valgrind.org/support/bug_reports.html. --00:06:17:53.031 4224-- WARNING: unhandled syscall: 179 ==00:06:17:53.031 4224== at 0x7C7A04A: quotactl (in /usr/lib/debug/libc-2.7.so) ==00:06:17:53.031 4224== by 0x7B2B3B: sys_get_linux_gen_quota (in /usr/sbin/smbd) ==00:06:17:53.031 4224== by 0x7B3480: sys_get_vfs_quota (in /usr/sbin/smbd) ==00:06:17:53.031 4224== by 0x7B1FE5: sys_get_quota (in /usr/sbin/smbd) ==00:06:17:53.031 4224== by 0x7B3EC6: disk_quotas (in /usr/sbin/smbd) ==00:06:17:53.031 4224== by 0x7744CF: sys_disk_free (in /usr/sbin/smbd) ==00:06:17:53.031 4224== by 0x4B076D: vfswrap_disk_free (in /usr/sbin/smbd) ==00:06:17:53.031 4224== by 0x773FD4: get_dfree_info (in /usr/sbin/smbd) ==00:06:17:53.031 4224== by 0x79DE48: call_trans2qfsinfo (in /usr/sbin/smbd) ==00:06:17:53.031 4224== by 0x7ABF39: handle_trans2 (in /usr/sbin/smbd) ==00:06:17:53.032 4224== by 0x7ADA47: reply_trans2 (in /usr/sbin/smbd) ==00:06:17:53.032 4224== by 0x4A264D: switch_message (in /usr/sbin/smbd) ==00:06:17:53.032 4224== by 0x4A40F7: smbd_process (in /usr/sbin/smbd) ==00:06:17:53.032 4224== by 0x471842: main (in /usr/sbin/smbd) --00:06:17:53.032 4224-- You may be able to write your own handler. --00:06:17:53.032 4224-- Read the file README_MISSING_SYSCALL_OR_IOCTL. --00:06:17:53.032 4224-- Nevertheless we consider this a bug. Please report --00:06:17:53.032 4224-- it at http://valgrind.org/support/bug_reports.html.
sys_capget and sys_capset are already supported in the svn trunk on amd64-linux (although not in 3.3.1). That just leaves sys_quotactl. Could you check out the trunk as described at http://www.valgrind.org/downloads/repository.html, apply the patch below, build, and let me know if it works correctly? Index: coregrind/m_syswrap/syswrap-amd64-linux.c =================================================================== --- coregrind/m_syswrap/syswrap-amd64-linux.c (revision 8708) +++ coregrind/m_syswrap/syswrap-amd64-linux.c (working copy) @@ -1229,7 +1229,7 @@ LINX_(__NR_delete_module, sys_delete_module), // 176 // (__NR_get_kernel_syms, sys_ni_syscall), // 177 // (__NR_query_module, sys_ni_syscall), // 178 - //LINX_(__NR_quotactl, sys_quotactl), // 179 + LINX_(__NR_quotactl, sys_quotactl), // 179 // (__NR_nfsservctl, sys_nfsservctl), // 180 // (__NR_getpmsg, sys_ni_syscall), // 181
Closing this in the absence of further feedback. Patch above committed as r8720. If you do get an opportunity to test it, I'd appreciate hearing the results.
*** Bug 154268 has been marked as a duplicate of this bug. ***