From: Jens Axboe <[email protected]>
To: Glauber Costa <[email protected]>
Cc: [email protected], Avi Kivity <[email protected]>
Subject: Re: Kernel BUG when registering the ring
Date: Mon, 10 Feb 2020 20:50:03 -0700 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <CAD-J=zYNXej09AarnJDqgvX5U5aNLh4ez6hddWzWvg-625c1mA@mail.gmail.com>
On 2/10/20 8:45 PM, Glauber Costa wrote:
> It crashes all the same
>
> New backtrace attached - looks very similar to the old one, although
> not identical.
I missed the other spot we do the same thing... Try this.
diff --git a/fs/io-wq.c b/fs/io-wq.c
index 182aa17dc2ca..b8ef5a5483de 100644
--- a/fs/io-wq.c
+++ b/fs/io-wq.c
@@ -1115,12 +1116,15 @@ struct io_wq *io_wq_create(unsigned bounded, struct io_wq_data *data)
for_each_node(node) {
struct io_wqe *wqe;
+ int alloc_node = node;
- wqe = kzalloc_node(sizeof(struct io_wqe), GFP_KERNEL, node);
+ if (!node_online(alloc_node))
+ alloc_node = NUMA_NO_NODE;
+ wqe = kzalloc_node(sizeof(struct io_wqe), GFP_KERNEL, alloc_node);
if (!wqe)
goto err;
wq->wqes[node] = wqe;
- wqe->node = node;
+ wqe->node = alloc_node;
wqe->acct[IO_WQ_ACCT_BOUND].max_workers = bounded;
atomic_set(&wqe->acct[IO_WQ_ACCT_BOUND].nr_running, 0);
if (wq->user) {
@@ -1128,7 +1132,6 @@ struct io_wq *io_wq_create(unsigned bounded, struct io_wq_data *data)
task_rlimit(current, RLIMIT_NPROC);
}
atomic_set(&wqe->acct[IO_WQ_ACCT_UNBOUND].nr_running, 0);
- wqe->node = node;
wqe->wq = wq;
spin_lock_init(&wqe->lock);
INIT_WQ_LIST(&wqe->work_list);
--
Jens Axboe
next prev parent reply other threads:[~2020-02-11 3:50 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-11 1:22 Kernel BUG when registering the ring Glauber Costa
2020-02-11 3:25 ` Jens Axboe
2020-02-11 3:45 ` Glauber Costa
2020-02-11 3:50 ` Jens Axboe [this message]
2020-02-11 13:01 ` Glauber Costa
2020-02-11 18:58 ` Jens Axboe
2020-02-11 19:23 ` Glauber Costa
2020-02-11 19:24 ` Jens Axboe
2020-02-12 22:31 ` Jann Horn
2020-02-13 15:20 ` Jens Axboe
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 \
[email protected] \
[email protected] \
[email protected] \
[email protected] \
[email protected] \
/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