From: Serge Petrenko <sergepetrenko@tarantool.org>
To: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Mons Anderson <v.perepelitsa@corp.mail.ru>,
tml <tarantool-patches@dev.tarantool.org>,
Vladislav Shpilevoy <v.shpilevoy@tarantool.org>
Subject: Re: [Tarantool-patches] [PATCH v4 4/4] crash: report crash data to the feedback server
Date: Mon, 14 Dec 2020 12:41:12 +0300 [thread overview]
Message-ID: <ade1dbd4-6570-a503-61e4-e09eb6bdc0e0@tarantool.org> (raw)
In-Reply-To: <20201212170734.GH544004@grain>
12.12.2020 20:07, Cyrill Gorcunov пишет:
> On Sat, Dec 12, 2020 at 07:19:47PM +0300, Cyrill Gorcunov wrote:
>> On Fri, Dec 11, 2020 at 03:57:20PM +0300, Serge Petrenko wrote:
>>>> +
>>>> + /*
>>>> + * On linux there is new_utsname structure which
>>>> + * encodes each field to __NEW_UTS_LEN + 1 => 64 + 1 = 65.
>>>> + *
>>>> + * So lets just reserve more data in advance: 5 fields
>>>> + * 128 bytes each => 640 bytes.
>>>> + */
>>>> + static_assert(sizeof(struct utsname) <= 640,
>>>> + "utsname is bigger than expected");
>>>
>>> This static assert fails on my mac.
>>> Looks like `struct utsname` is 1280 bytes in size there.
>> Thanks, Serge! I'll force update the size.
> Force pushed the update
> ---
> /*
> * Lets reuse tail of the buffer as a temp space.
> */
> struct utsname *uname_ptr = (void *)&tail[-sizeof(struct utsname)];
> if (p >= (char *)(void *)uname_ptr)
> goto out;
>
> if (uname(uname_ptr) != 0) {
> pr_syserr("uname call failed, ignore");
> memset(uname_ptr, 0, sizeof(struct utsname));
> }
Thanks for the fix!
LGTM.
--
Serge Petrenko
next prev parent reply other threads:[~2020-12-14 9:41 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-10 16:18 [Tarantool-patches] [PATCH v4 0/4] crash: implement sending feedback Cyrill Gorcunov
2020-12-10 16:18 ` [Tarantool-patches] [PATCH v4 1/4] util: introduce strlcpy helper Cyrill Gorcunov
2020-12-11 7:34 ` Serge Petrenko
2020-12-11 7:58 ` Serge Petrenko
2020-12-11 10:04 ` Cyrill Gorcunov
2020-12-11 11:07 ` Serge Petrenko
2020-12-11 11:38 ` Cyrill Gorcunov
2020-12-14 22:54 ` Vladislav Shpilevoy
2020-12-14 22:54 ` Vladislav Shpilevoy
2020-12-15 8:47 ` Cyrill Gorcunov
2020-12-10 16:18 ` [Tarantool-patches] [PATCH v4 2/4] backtrace: allow to specify destination buffer Cyrill Gorcunov
2020-12-11 7:50 ` Serge Petrenko
2020-12-10 16:18 ` [Tarantool-patches] [PATCH v4 3/4] crash: move fatal signal handling in Cyrill Gorcunov
2020-12-11 9:31 ` Serge Petrenko
2020-12-11 10:38 ` Cyrill Gorcunov
2020-12-11 11:12 ` Serge Petrenko
2020-12-14 22:54 ` Vladislav Shpilevoy
2020-12-15 8:16 ` Cyrill Gorcunov
2020-12-20 14:48 ` Vladislav Shpilevoy
2020-12-20 15:49 ` Cyrill Gorcunov
2020-12-20 16:07 ` Vladislav Shpilevoy
2020-12-20 16:58 ` Cyrill Gorcunov
2020-12-20 15:45 ` Vladislav Shpilevoy
2020-12-10 16:18 ` [Tarantool-patches] [PATCH v4 4/4] crash: report crash data to the feedback server Cyrill Gorcunov
2020-12-11 12:57 ` Serge Petrenko
2020-12-12 16:19 ` Cyrill Gorcunov
2020-12-12 17:07 ` Cyrill Gorcunov
2020-12-14 9:41 ` Serge Petrenko [this message]
2020-12-14 22:54 ` Vladislav Shpilevoy
2020-12-16 11:16 ` Cyrill Gorcunov
2020-12-16 20:31 ` Cyrill Gorcunov
2020-12-20 15:16 ` Vladislav Shpilevoy
2020-12-20 18:26 ` Cyrill Gorcunov
2020-12-20 14:48 ` Vladislav Shpilevoy
2020-12-20 18:21 ` Cyrill Gorcunov
2020-12-20 18:41 ` Vladislav Shpilevoy
2020-12-20 19:16 ` Cyrill Gorcunov
2020-12-21 17:01 ` Vladislav Shpilevoy
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