On Thu, 3 Apr 2003, Andrew Gallatin wrote:
Nate Lawson writes:
I was testing some changes to make fxp MPSAFE and got a LOR in allocating
the mbuf cluster and then finally a panic when trying to dereference the
cluster header. Is the mbuf system MPSAFE? Is it ok to call m_getcl
with
Nate Lawson writes:
You're right about where the problem is (top of stack trace and listing
below). However, your patch causes an immediate panic on boot due to a
NULL deref. I don't think you want it to always return NULL if called
with M_NOWAIT set. :) Other ideas?
I
Nate Lawson writes:
You're right about where the problem is (top of stack trace and listing
below). However, your patch causes an immediate panic on boot due to a
NULL deref. I don't think you want it to always return NULL if called
with M_NOWAIT set. :) Other ideas?
The following
On Wed, 2 Apr 2003, Bosko Milekic wrote:
BM For what concerns DONTWAIT, you should theoretically be allowed to
BM hold a driver lock. But again, there may be a problem. Specifically,
BM I see that UMA code has some explicit Giant acquires/frees in certain
BM places. When the UMA code gets
Nate Lawson writes:
I was testing some changes to make fxp MPSAFE and got a LOR in allocating
the mbuf cluster and then finally a panic when trying to dereference the
cluster header. Is the mbuf system MPSAFE? Is it ok to call m_getcl
with a device lock held (but not Giant)?
The
I was testing some changes to make fxp MPSAFE and got a LOR in allocating
the mbuf cluster and then finally a panic when trying to dereference the
cluster header. Is the mbuf system MPSAFE? Is it ok to call m_getcl
with a device lock held (but not Giant)?
The lock reversal was: 1. fxp softc
Nate Lawson writes:
I was testing some changes to make fxp MPSAFE and got a LOR in allocating
the mbuf cluster and then finally a panic when trying to dereference the
cluster header. Is the mbuf system MPSAFE? Is it ok to call m_getcl
with a device lock held (but not Giant)?
The
On Wed, Apr 02, 2003 at 12:39:30PM -0800, Nate Lawson wrote:
I was testing some changes to make fxp MPSAFE and got a LOR in allocating
the mbuf cluster and then finally a panic when trying to dereference the
cluster header. Is the mbuf system MPSAFE? Is it ok to call m_getcl
with a device
