From: Harald Arnesen <harald@skogtun.org>
To: Chris Wilson <chris@chris-wilson.co.uk>, intel-gfx@lists.freedesktop.org
Cc: stable@vger.kernel.org
Subject: Re: [Intel-gfx] [PATCH 01/39] drm/i915/gem: Avoid implicit vmap for highmem on x86-32
Date: Wed, 26 Aug 2020 22:43:32 +0200 [thread overview]
Message-ID: <bb7583d9-a519-60cc-84b3-56de69a6ac21@skogtun.org> (raw)
In-Reply-To: <20200826132811.17577-1-chris@chris-wilson.co.uk>
Chris Wilson [26.08.2020 15:27]:
> On 32b, highmem uses a finite set of indirect PTE (i.e. vmap) to provide
> virtual mappings of the high pages. As these are finite, map_new_virtual()
> must wait for some other kmap() to finish when it runs out. If we map a
> large number of objects, there is no method for it to tell us to release
> the mappings, and we deadlock.
>
> However, if we make an explicit vmap of the page, that uses a larger
> vmalloc arena, and also has the ability to tell us to release unwanted
> mappings. Most importantly, it will fail and propagate an error instead
> of waiting forever.
>
> Fixes: fb8621d3bee8 ("drm/i915: Avoid allocating a vmap arena for a single page") #x86-32
> References: e87666b52f00 ("drm/i915/shrinker: Hook up vmap allocation failure notifier")
> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
> Cc: Harald Arnesen <harald@skogtun.org>
> Cc: <stable@vger.kernel.org> # v4.7+
Sorry, doesn't help on my machine (Thinkpad T520).
--
Hilsen Harald
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
prev parent reply other threads:[~2020-08-26 20:43 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-26 13:27 [Intel-gfx] [PATCH 01/39] drm/i915/gem: Avoid implicit vmap for highmem on x86-32 Chris Wilson
2020-08-26 13:27 ` [Intel-gfx] [PATCH 02/39] drm/i915/gem: Use set_pte_at() for assigning the vmapped PTE Chris Wilson
2020-08-26 16:36 ` Matthew Auld
2020-08-26 16:55 ` Chris Wilson
2020-08-26 13:27 ` [Intel-gfx] [PATCH 03/39] drm/i915/gem: Prevent using pgprot_writecombine() if PAT is not supported Chris Wilson
2020-08-26 13:27 ` [Intel-gfx] [PATCH 04/39] drm/i915/gt: Clear the buffer pool age before use Chris Wilson
2020-08-26 17:15 ` Matthew Auld
2020-08-26 13:27 ` [Intel-gfx] [PATCH 05/39] drm/i915/gt: Widen CSB pointer to u64 for the parsers Chris Wilson
2020-08-26 13:27 ` [Intel-gfx] [PATCH 06/39] drm/i915/gt: Wait for CSB entries on Tigerlake Chris Wilson
2020-08-28 14:04 ` Mika Kuoppala
2020-08-26 13:27 ` [Intel-gfx] [PATCH 07/39] drm/i915/gt: Apply the CSB w/a for all Chris Wilson
2020-08-26 13:27 ` [Intel-gfx] [PATCH 08/39] drm/i915/gt: Show engine properties in the pretty printer Chris Wilson
2020-08-27 12:25 ` Mika Kuoppala
2020-08-26 13:27 ` [Intel-gfx] [PATCH 09/39] drm/i915/gem: Hold request reference for canceling an active context Chris Wilson
2020-08-26 13:27 ` [Intel-gfx] [PATCH 10/39] drm/i915: Cancel outstanding work after disabling heartbeats on an engine Chris Wilson
2020-08-29 9:30 ` Mika Kuoppala
2020-08-26 13:27 ` [Intel-gfx] [PATCH 11/39] drm/i915/gt: Always send a pulse down the engine after disabling heartbeat Chris Wilson
2020-08-26 13:27 ` [Intel-gfx] [PATCH 12/39] drm/i915/gem: Always test execution status on closing the context Chris Wilson
2020-08-26 13:27 ` [Intel-gfx] [PATCH 13/39] drm/i915/gt: Signal cancelled requests Chris Wilson
2020-08-26 13:27 ` [Intel-gfx] [PATCH 14/39] drm/i915/selftests: Finish pending mock requests on cancellation Chris Wilson
2020-08-26 13:27 ` [Intel-gfx] [PATCH 15/39] drm/i915/gt: Retire cancelled requests on unload Chris Wilson
2020-08-26 13:27 ` [Intel-gfx] [PATCH 16/39] drm/i915/gt: Remove defunct intel_virtual_engine_get_sibling() Chris Wilson
2020-08-26 13:27 ` [Intel-gfx] [PATCH 17/39] drm/i915/gt: Defer enabling the breadcrumb interrupt to after submission Chris Wilson
2020-08-26 13:27 ` [Intel-gfx] [PATCH 18/39] drm/i915/gt: Track signaled breadcrumbs outside of the breadcrumb spinlock Chris Wilson
2020-08-26 13:27 ` [Intel-gfx] [PATCH 19/39] drm/i915/gt: Don't cancel the interrupt shadow too early Chris Wilson
2020-08-26 13:27 ` [Intel-gfx] [PATCH 20/39] drm/i915/gt: Free stale request on destroying the virtual engine Chris Wilson
2020-08-26 13:27 ` [Intel-gfx] [PATCH 21/39] drm/i915/gt: Protect context lifetime with RCU Chris Wilson
2020-08-26 13:27 ` [Intel-gfx] [PATCH 22/39] drm/i915/gt: Split the breadcrumb spinlock between global and contexts Chris Wilson
2020-08-26 13:27 ` [Intel-gfx] [PATCH 23/39] drm/i915/gt: Move the breadcrumb to the signaler if completed upon cancel Chris Wilson
2020-08-26 13:27 ` [Intel-gfx] [PATCH 24/39] drm/i915/gt: Decouple completed requests on unwind Chris Wilson
2020-08-26 13:27 ` [Intel-gfx] [PATCH 25/39] drm/i915/gt: Check for a completed last request once Chris Wilson
2020-08-26 13:27 ` [Intel-gfx] [PATCH 26/39] drm/i915/gt: Replace direct submit with direct call to tasklet Chris Wilson
2020-08-26 13:27 ` [Intel-gfx] [PATCH 27/39] drm/i915/gt: ce->inflight updates are now serialised Chris Wilson
2020-08-26 13:28 ` [Intel-gfx] [PATCH 28/39] drm/i915/gt: Use virtual_engine during execlists_dequeue Chris Wilson
2020-08-26 13:28 ` [Intel-gfx] [PATCH 29/39] drm/i915/gt: Decouple inflight virtual engines Chris Wilson
2020-08-26 13:28 ` [Intel-gfx] [PATCH 30/39] drm/i915/gt: Defer schedule_out until after the next dequeue Chris Wilson
2020-08-26 13:28 ` [Intel-gfx] [PATCH 31/39] drm/i915/gt: Remove virtual breadcrumb before transfer Chris Wilson
2020-08-26 13:28 ` [Intel-gfx] [PATCH 32/39] drm/i915/gt: Shrink the critical section for irq signaling Chris Wilson
2020-08-26 13:28 ` [Intel-gfx] [PATCH 33/39] drm/i915/gt: Resubmit the virtual engine on schedule-out Chris Wilson
2020-08-26 13:28 ` [Intel-gfx] [PATCH 34/39] drm/i915/gt: Simplify virtual engine handling for execlists_hold() Chris Wilson
2020-08-26 13:28 ` [Intel-gfx] [PATCH 35/39] drm/i915: Encode fence specific waitqueue behaviour into the wait.flags Chris Wilson
2020-09-02 14:02 ` Thomas Hellström (Intel)
2020-09-03 9:50 ` Thomas Hellström (Intel)
2020-09-03 11:32 ` Chris Wilson
2020-09-03 12:08 ` Thomas Hellström (Intel)
2020-08-26 13:28 ` [Intel-gfx] [PATCH 36/39] drm/i915/selftests: Confirm RING_TIMESTAMP / CTX_TIMESTAMP share a clock Chris Wilson
2020-08-26 13:28 ` [Intel-gfx] [PATCH 37/39] drm/i915/gt: Consolidate the CS timestamp clocks Chris Wilson
2020-08-26 13:28 ` [Intel-gfx] [PATCH 38/39] drm/i915: Break up error capture compression loops with cond_resched() Chris Wilson
2020-08-26 13:28 ` [Intel-gfx] [PATCH 39/39] drm/i915: Reduce GPU error capture mutex hold time Chris Wilson
2020-08-26 13:53 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for series starting with [01/39] drm/i915/gem: Avoid implicit vmap for highmem on x86-32 Patchwork
2020-08-26 13:54 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork
2020-08-26 14:11 ` [Intel-gfx] ✗ Fi.CI.BAT: failure " Patchwork
2020-08-26 14:20 ` [Intel-gfx] [PATCH 01/39] " Matthew Auld
2020-08-26 20:43 ` Harald Arnesen [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=bb7583d9-a519-60cc-84b3-56de69a6ac21@skogtun.org \
--to=harald@skogtun.org \
--cc=chris@chris-wilson.co.uk \
--cc=intel-gfx@lists.freedesktop.org \
--cc=stable@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).