Date: Thu, 26 Mar 2015 17:56:12 -0600 From: jd1008 <jd1008@gmail.com> To: freebsd-questions@freebsd.org Subject: Re: Significant memory leak in 9.3p10? Message-ID: <55149C9C.8040302@gmail.com> In-Reply-To: <CABXB=RRsF4RoMiVA88WeAgXoYQihU8s2g3T=ToO3HW9DceroKw@mail.gmail.com> References: <CABXB=RRhynY5FWvw3tHrLFRyitTemavXYLBpev5Mjs_kPqimXA@mail.gmail.com> <20150316232404.GM2379@kib.kiev.ua> <CABXB=RSt0MgEyoJs4o5utTg7oSu0RZ%2B-czeY0k-Ro%2BfRubK3kQ@mail.gmail.com> <CABXB=RTe9d0DD68RCi6JWKH%2BcK%2Ba8McmKmeejTypLhVZRc0t7w@mail.gmail.com> <CAN6yY1si_6KRXrTdXABGdtAfqRcCyqqe48acbVUmRT1eZ7tuXw@mail.gmail.com> <CABXB=RRsF4RoMiVA88WeAgXoYQihU8s2g3T=ToO3HW9DceroKw@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On 03/26/2015 05:47 PM, J David wrote: > In our case, > > On Thu, Mar 26, 2015 at 5:03 PM, Kevin Oberman <rkoberman@gmail.com> wrote: >> This is just a shot in the dark and not a really likely one, but I have had >> issues with Firefox leaking memory badly. I can free the space by killing >> firefox and restarting it. > In our case, we can log in from the console, kill every single > user-mode process on the system except the init, login, and the > console shell, and the memory is not recovered. Gigabytes and > gigabytes user memory of it are being held by some un-findable > anonymous persistent structure not linked to any process. Konstantin > proposed that it was some sort of shared memory usage, but there > appears to be no way to check or investigate most types of shared > memory usage on FreeBSD. > >> If it is in user space, top should show it under RES. > This is definitely *not* the case. Whatever is using the memory is > not associated with any user-space process, and does not show up on > top or ps. > > It also does not appear to be SysV shared memory, as that reports: > > $ ipcs -m > > Shared Memory: > > T ID KEY MODE OWNER GROUP > > > $ > > > Also, kern.ipc.shmmax is only 512MB whereas this problem is consuming > usually 8-10GB. So I guess the remaining possibilities are anonymous > mmap's that are somehow not associated with any process and Posix > shared memory. Are there any ways to investigate either possibility? > > Thanks! > __________________ I was wondering if those pages might be held in the filesystem page cache??? Just a wild guess.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?55149C9C.8040302>