[Bug 195882] Local DoS from unprivileged user

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195882 --- Comment #11 from Mark Millard --- (In reply to Mark Johnston from comment #5) Thanks for that note. The caching status after unmap and after close and after process deletion has helped clear out bad assumptions of mine, including just

[Bug 195882] Local DoS from unprivileged user

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195882 --- Comment #10 from Mark Millard --- (In reply to rozhuk.im from comment #8) One difference in my test context and yours appears to be that I'm not using any encryption layer but the .eli in: /dev/gptid/0714a812-b98e-11e8-a831-7085c23757

[Bug 195882] Local DoS from unprivileged user

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195882 --- Comment #9 from Mark Millard --- (In reply to rozhuk.im from comment #6) > On 10.1 this cache eat all free mem and all system freeze, if swap not > enabled. In what I describe below I was testing a head -r339076 based FreeBSD on an a

[Bug 195882] Local DoS from unprivileged user

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195882 --- Comment #8 from rozhuk...@gmail.com --- (In reply to Mark Johnston from comment #7) Main problem is that dirty pages does not go to free after if flushed to disk, and it cause swap usage. On 10.1 - system can not allocate mem even after

[Bug 195882] Local DoS from unprivileged user

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195882 --- Comment #7 from Mark Johnston --- (In reply to rozhuk.im from comment #6) Your test program is dirtying pages by writing to them, so the OS is forced to flush them to disk before they can be reused. It is easy to dirty pages more quick

[Bug 195882] Local DoS from unprivileged user

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195882 --- Comment #6 from rozhuk...@gmail.com --- (In reply to Mark Johnston from comment #5) On 10.1 this cache eat all free mem and all system freeze, if swap not enabled. Now is better, but disk cache still cause swap usage or freezes (but le

[Bug 195882] Local DoS from unprivileged user

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195882 Mark Johnston changed: What|Removed |Added CC||ma...@freebsd.org --- Comment #5 f

[Bug 195882] Local DoS from unprivileged user

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195882 --- Comment #4 from Mark Millard --- (In reply to rozhuk.im from comment #3) Looks like I misinterpreted the man page's description the munmap does return 0 in the example. Sorry for the noise for that point. But may be a can make up for

[Bug 195882] Local DoS from unprivileged user

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195882 --- Comment #3 from rozhuk...@gmail.com --- Process memory usage does not grow, unmap should works fine. -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-bugs

[Bug 195882] Local DoS from unprivileged user

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195882 Mark Millard changed: What|Removed |Added CC||marklmi26-f...@yahoo.com --- Commen

[Bug 195882] Local DoS from unprivileged user

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195882 --- Comment #1 from rozhuk...@gmail.com --- swap is off. -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-bugs@freebsd.org mailing list http://lists.freebsd.o