From: Richard Henderson <richard.henderson@linaro.org>
To: Warner Losh <imp@bsdimp.com>
Cc: Karim Taha <kariem.taha2.7@gmail.com>,
qemu-devel@nongnu.org, Stacey Son <sson@freebsd.org>
Subject: Re: [PATCH 21/22] Implement shmat(2) and shmdt(2)
Date: Tue, 22 Aug 2023 11:11:36 -0700 [thread overview]
Message-ID: <c7dbf551-f833-c5e3-302e-fcea2d411bb5@linaro.org> (raw)
In-Reply-To: <CANCZdfrmw6c9kxFTUrWegaU78SHBjqVMEHuO8VVsPN=7hGQb0Q@mail.gmail.com>
On 8/22/23 11:03, Warner Losh wrote:
> Hmm, bug with linux-user as well, because here we should re-establish the reserved_va
> reservation.
>
>
> ... of the shared memory region we just detached? Right?
Correct.
On a related note, on FreeBSD is there any practical difference between
PROT_NONE, MAP_ANON
and
PROT_NONE, MAP_GUARD
for large memory regions?
I ask since FreeBSD doesn't have MAP_NORESERVE, which Linux uses to avoid allocation of
gigabytes.
r~
next prev parent reply other threads:[~2023-08-22 18:12 UTC|newest]
Thread overview: 79+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-19 9:47 [PATCH 00/22] Implement the mmap system call for FreeBSD Karim Taha
2023-08-19 9:47 ` [PATCH 01/22] Implement struct target_ipc_perm Karim Taha
2023-08-19 14:37 ` Richard Henderson
2023-08-20 4:07 ` Warner Losh
2023-08-19 9:47 ` [PATCH 02/22] Implement struct target_shmid_ds Karim Taha
2023-08-19 14:38 ` Richard Henderson
2023-08-20 4:08 ` Warner Losh
2023-08-19 9:47 ` [PATCH 03/22] Declarations for ipc_perm and shmid_ds conversion functions Karim Taha
2023-08-19 14:40 ` Richard Henderson
2023-08-20 4:08 ` Warner Losh
2023-08-19 9:47 ` [PATCH 04/22] Introduce freebsd/os-misc.h to the source tree Karim Taha
2023-08-19 14:40 ` Richard Henderson
2023-08-20 4:09 ` Warner Losh
2023-08-19 9:47 ` [PATCH 05/22] Implement shm_open2(2) system call Karim Taha
2023-08-19 15:10 ` Richard Henderson
2023-08-20 4:16 ` Warner Losh
2023-08-19 9:47 ` [PATCH 06/22] Implement shm_rename(2) " Karim Taha
2023-08-20 4:18 ` Warner Losh
2023-08-20 14:05 ` Richard Henderson
2023-08-19 9:47 ` [PATCH 07/22] Add bsd-mem.c to meson.build Karim Taha
2023-08-20 4:19 ` Warner Losh
2023-08-20 14:06 ` Richard Henderson
2023-08-19 9:47 ` [PATCH 08/22] Implement target_set_brk function in bsd-mem.c instead of os-syscall.c Karim Taha
2023-08-20 4:22 ` Warner Losh
2023-08-20 14:12 ` Richard Henderson
2023-08-19 9:47 ` [PATCH 09/22] Implement ipc_perm conversion between host and target Karim Taha
2023-08-20 4:23 ` Warner Losh
2023-08-20 14:16 ` Richard Henderson
2023-08-19 9:47 ` [PATCH 10/22] Implement shmid_ds " Karim Taha
2023-08-20 4:25 ` Warner Losh
2023-08-20 14:20 ` Richard Henderson
2023-09-03 8:45 ` Kariiem Taha
2023-09-05 1:43 ` Richard Henderson
2023-08-19 9:47 ` [PATCH 11/22] Introduce bsd-mem.h to the source tree Karim Taha
2023-08-20 4:26 ` Warner Losh
2023-08-20 14:21 ` Richard Henderson
2023-08-19 9:47 ` [PATCH 12/22] Implement mmap(2) and munmap(2) Karim Taha
2023-08-20 4:27 ` Warner Losh
2023-08-20 14:25 ` Richard Henderson
2023-08-19 9:47 ` [PATCH 13/22] Implement mprotect(2) Karim Taha
2023-08-20 4:28 ` Warner Losh
2023-08-20 14:25 ` Richard Henderson
2023-08-19 9:47 ` [PATCH 14/22] Implement msync(2) Karim Taha
2023-08-20 4:34 ` Warner Losh
2023-08-20 14:37 ` Richard Henderson
2023-08-19 9:47 ` [PATCH 15/22] Implement mlock(2), munlock(2), mlockall(2), munlockall(2), madvise(2), minherit(2) Karim Taha
2023-08-20 4:37 ` Warner Losh
2023-08-20 14:42 ` Richard Henderson
2023-08-20 14:43 ` Richard Henderson
2023-08-19 9:48 ` [PATCH 16/22] Implement mincore(2) Karim Taha
2023-08-20 4:37 ` Warner Losh
2023-08-20 14:55 ` Richard Henderson
2023-08-19 9:48 ` [PATCH 17/22] Implement do_obreak function Karim Taha
2023-08-20 4:40 ` Warner Losh
2023-08-20 15:03 ` Richard Henderson
2023-08-19 9:48 ` [PATCH 18/22] Implement shm_open(2) Karim Taha
2023-08-20 4:42 ` Warner Losh
2023-08-20 15:04 ` Richard Henderson
2023-08-20 15:10 ` Richard Henderson
2023-08-19 9:48 ` [PATCH 19/22] Implement shm_unlink(2) and shmget(2) Karim Taha
2023-08-20 4:42 ` Warner Losh
2023-08-20 15:05 ` Richard Henderson
2023-08-20 15:07 ` Richard Henderson
2023-08-19 9:48 ` [PATCH 20/22] Implement shmctl(2) Karim Taha
2023-08-20 4:43 ` Warner Losh
2023-08-20 15:13 ` Richard Henderson
2023-09-09 1:59 ` Karim Taha
2023-09-09 17:51 ` Richard Henderson
2023-08-19 9:48 ` [PATCH 21/22] Implement shmat(2) and shmdt(2) Karim Taha
2023-08-20 4:44 ` Warner Losh
2023-08-20 15:30 ` Richard Henderson
2023-08-22 18:03 ` Warner Losh
2023-08-22 18:11 ` Richard Henderson [this message]
2023-08-22 19:54 ` Warner Losh
2023-08-22 21:00 ` Richard Henderson
2023-08-19 9:48 ` [PATCH 22/22] Add stubs for vadvise(), sbrk() and sstk() Karim Taha
2023-08-20 4:45 ` Warner Losh
2023-08-20 15:35 ` Richard Henderson
2023-08-20 20:42 ` Warner Losh
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