Displaying 4 results from an estimated 4 matches for "alloc_pid".
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alloc_pd
2007 Apr 24
2
SMP lockup in virtualized environment
...in can be denied timer interrupts for such a
long time ? The only reason I see is that the guest domain is not
scheduled at all (host domain or another higher priority guest running).
Now in SMP host and guest, what happens if a guest CPU is not scheduled
for a while ?
An example: in kernel/pid.c:alloc_pid(), if one of the guest CPUs is
descheduled when holding the pidmap_lock, what happens to the other
guest CPUs who want to alloc/free pids ? Are they blocked too ?
--
Cyprien Laplace
2007 Apr 24
2
SMP lockup in virtualized environment
...in can be denied timer interrupts for such a
long time ? The only reason I see is that the guest domain is not
scheduled at all (host domain or another higher priority guest running).
Now in SMP host and guest, what happens if a guest CPU is not scheduled
for a while ?
An example: in kernel/pid.c:alloc_pid(), if one of the guest CPUs is
descheduled when holding the pidmap_lock, what happens to the other
guest CPUs who want to alloc/free pids ? Are they blocked too ?
--
Cyprien Laplace
2009 Jul 29
2
out of memory
...<ffffffff800c3a6a>] out_of_memory+0x8e/0x2f5
[<ffffffff8000f2eb>] __alloc_pages+0x245/0x2ce
[<ffffffff8002303f>] alloc_page_interleave+0x3d/0x74
[<ffffffff8003c061>] __get_free_pages+0xe/0x71
[<ffffffff8001eb82>] copy_process+0xc6/0x15b8
[<ffffffff8009b8bc>] alloc_pid+0x1ee/0x28a
[<ffffffff80030cdb>] do_fork+0x69/0x1c1
[<ffffffff8009d98c>] keventd_create_kthread+0x0/0xc4
[<ffffffff8005df3d>] kernel_thread+0x81/0xeb
[<ffffffff8009d98c>] keventd_create_kthread+0x0/0xc4
[<ffffffff80032282>] kthread+0x0/0x132
[<ffffffff8005dfa7...
2009 Apr 03
1
Memory Leak with stock Squirrelmail, PHP, mysql, apache since 5.3
...021ef3f>]
copy_process+0xa6/0x1a48
Apr 2 17:18:28 s_local at webmail kernel:[<ffffffff8020afce>]
kmem_cache_alloc+0x62/0x6d
Apr 2 17:18:28 s_local at webmail kernel:[<ffffffff80263a0d>]
_spin_lock_irq+0x9/0x14
Apr 2 17:18:28 s_local at webmail kernel:[<ffffffff80297d10>]
alloc_pid+0x26c/0x292
Apr 2 17:18:28 s_local at webmail kernel:[<ffffffff80231fcf>]
do_fork+0x69/0x1c1
Apr 2 17:18:28 s_local at webmail kernel:[<ffffffff80299dc0>]
keventd_create_kthread+0x0/0xc4
Apr 2 17:18:28 s_local at webmail kernel:[<ffffffff8025fac5>]
kernel_thread+0x81/0xde
Ap...